Memory is the encoding, storage, and retrieval of information. There are several theories of memory, including that it involves three processes: encoding, storage, and retrieval. Memory can be categorized as either explicit (declarative) or implicit (non-declarative). Explicit memory involves consciously recalling facts and events, and can be further divided into episodic memory of personal experiences and semantic memory of general knowledge. Implicit memory involves unconscious recall of skills and procedures. Disorders of memory include amnesia, which is the inability to recall information, and paramnesia, which involves distortions of memory such as false memories.
This document summarizes different aspects of memory, including the three stages of memory (sensory, short-term, and long-term), different types of memories (autobiographical, explicit/declarative, and implicit/procedural), memory impairments such as amnesias and distortions, and specific disorders. It describes various organic and psychogenic causes of amnesia and different types of distortions of memory including false memories, confabulation, and déjà vu.
This document discusses various types of memory, including immediate, short-term, and long-term memory. It describes different ways that memory can be impaired, such as issues with registration, retention, recall, and recognition. Several types of amnesia are outlined, including psychogenic amnesia, organic amnesia from acute or chronic brain diseases, and amnesias related to anxiety or depression. The document also discusses phenomena like confabulation, déjà vu, and pseudologia fantastica.
Disorders of consciousness can affect perception, attention, thinking, and orientation. There are three main types: dream-like changes where consciousness is lowered and hallucinations may occur; depressed consciousness where awareness is reduced; and restricted consciousness where awareness is narrowed to a few ideas. Specific disorders include delirium, characterized by cognitive impairment and fluctuating consciousness; confusion involving disorientation; and twilight states where consciousness is briefly interrupted. Qualitative changes in consciousness are important to understand for clinical and legal purposes.
This document discusses normal emotions and the assessment of mood and affect in clinical interviews. It defines key terms like feeling, emotion, mood and affect. It describes the basic emotions and normal physiology of emotions, including the role of the autonomic nervous system and brain structures. Assessment of mood involves evaluating qualities like intensity, duration and fluctuations. Assessment of affect involves monitoring body language and facial expressions.
The document provides information about several topics related to the brain and memory:
- The hippocampus is involved in memory formation and storage and is located in the temporal lobe.
- Autism affects social and communication skills and may be linked to factors like diet, mercury, or vaccines.
- Hyperthymesia is a condition where individuals have exceptional autobiographical memory recall.
- Memory loss can range from normal forgetfulness to conditions like Alzheimer's disease, which is a progressive brain disease leading to irreversible neuron loss and cognitive decline.
The document discusses various types of memory disorders and distortions, including amnesias, confabulations, déjà vu experiences, and misidentifications. It covers psychogenic and organic causes of amnesia, different types of amnesia like retrograde and anterograde, and syndromes involving memory distortions like Korsakoff's syndrome, Capgras syndrome, and confabulation.
This document discusses motor disorders and their classification. It covers disorders of adaptive movements including expressive, reactive, and goal directed movements. Disorders of non-adaptive movements like stereotypies, parakinesia, tics, tremors, chorea, athetosis, and spasmodic torticollis are described. Motor speech disturbances, disorders of posture, abnormal complex patterns of behavior like stupor and excitement, and drug-induced movement disorders are also summarized.
What is consciousness
Characteristics of consciousness
Dimension of consciousness
Disturbance of consciousness
Active and passive consciousness
Distractibility
Dream like change of Consciousness
Unconsciousness
This document summarizes different aspects of memory, including the three stages of memory (sensory, short-term, and long-term), different types of memories (autobiographical, explicit/declarative, and implicit/procedural), memory impairments such as amnesias and distortions, and specific disorders. It describes various organic and psychogenic causes of amnesia and different types of distortions of memory including false memories, confabulation, and déjà vu.
This document discusses various types of memory, including immediate, short-term, and long-term memory. It describes different ways that memory can be impaired, such as issues with registration, retention, recall, and recognition. Several types of amnesia are outlined, including psychogenic amnesia, organic amnesia from acute or chronic brain diseases, and amnesias related to anxiety or depression. The document also discusses phenomena like confabulation, déjà vu, and pseudologia fantastica.
Disorders of consciousness can affect perception, attention, thinking, and orientation. There are three main types: dream-like changes where consciousness is lowered and hallucinations may occur; depressed consciousness where awareness is reduced; and restricted consciousness where awareness is narrowed to a few ideas. Specific disorders include delirium, characterized by cognitive impairment and fluctuating consciousness; confusion involving disorientation; and twilight states where consciousness is briefly interrupted. Qualitative changes in consciousness are important to understand for clinical and legal purposes.
This document discusses normal emotions and the assessment of mood and affect in clinical interviews. It defines key terms like feeling, emotion, mood and affect. It describes the basic emotions and normal physiology of emotions, including the role of the autonomic nervous system and brain structures. Assessment of mood involves evaluating qualities like intensity, duration and fluctuations. Assessment of affect involves monitoring body language and facial expressions.
The document provides information about several topics related to the brain and memory:
- The hippocampus is involved in memory formation and storage and is located in the temporal lobe.
- Autism affects social and communication skills and may be linked to factors like diet, mercury, or vaccines.
- Hyperthymesia is a condition where individuals have exceptional autobiographical memory recall.
- Memory loss can range from normal forgetfulness to conditions like Alzheimer's disease, which is a progressive brain disease leading to irreversible neuron loss and cognitive decline.
The document discusses various types of memory disorders and distortions, including amnesias, confabulations, déjà vu experiences, and misidentifications. It covers psychogenic and organic causes of amnesia, different types of amnesia like retrograde and anterograde, and syndromes involving memory distortions like Korsakoff's syndrome, Capgras syndrome, and confabulation.
This document discusses motor disorders and their classification. It covers disorders of adaptive movements including expressive, reactive, and goal directed movements. Disorders of non-adaptive movements like stereotypies, parakinesia, tics, tremors, chorea, athetosis, and spasmodic torticollis are described. Motor speech disturbances, disorders of posture, abnormal complex patterns of behavior like stupor and excitement, and drug-induced movement disorders are also summarized.
What is consciousness
Characteristics of consciousness
Dimension of consciousness
Disturbance of consciousness
Active and passive consciousness
Distractibility
Dream like change of Consciousness
Unconsciousness
Here we'll discuss the Memory Disorders and their types. We'll learn about 3 types of memories. We'll discuss Amnesia and the types of amnesia as well as the various other pathologies related to memory. Hope this will help you all
The document discusses disorders of memory from a biological and clinical perspective. It describes the biology of memory including neural plasticity and long-term potentiation. It examines different types of memory and various memory disorders like amnesia. Case studies of patients with memory disorders are presented to illustrate the role of medial temporal structures in memory. Assessment techniques for memory in clinical settings are also outlined.
Amnesia is a loss of memory that can be caused by organic factors like brain damage or drugs, or functional factors like psychological defenses. There are two main types: anterograde amnesia where new memories are not formed, and retrograde amnesia where past memories cannot be recalled. Post-traumatic amnesia is usually due to head injury and can be transient or permanent, while dissociative amnesia has psychological causes like repressed memories. Improving memory involves techniques like repeated studying, associating information with cues, and testing yourself to determine what you have not yet learned.
This document discusses memory processes and disorders of memory. It describes the stages of memory as sensory memory, short-term memory, working memory, and long-term memory. It then discusses types of long-term memory and different forms of amnesia, including organic amnesia which can cause anterograde or retrograde memory loss. The document also covers psychogenic amnesias like dissociative amnesia and distortions of memory such as confabulation and retrospective falsification.
Dr. Zainab from the Department of Psychiatry at KMCH Guntur presented on consciousness and its disorders. Consciousness refers to one's awareness of themselves and their environment. It can be altered in three ways - a dream-like state as seen in delirium, a depressed state, or a restricted state. Delirium involves a lowering of consciousness and disordered thinking similar to dreams, along with possible hallucinations and confusion about time and place. Consciousness levels range from alertness to lethargy, obtundation, stupor, and coma - with decreasing responsiveness at each level. Proper assessment of consciousness level is crucial for an accurate mental status examination.
Cutting (1997) provided a framework wherein he classified emotional disorders based on intensity, duration, timing, quality of experience, expression and appropriateness to the object or social setting.
Understanding the encoding of memory and its retrieval is a complex task. The neurobiological correlates of memory have been summarised in this presentation for easy understanding of students.
This document discusses various disorders of emotion, including abnormal emotional predispositions, reactions, expressions, and morbid disorders and expressions of emotion. Specific disorders discussed include parathymia (blunting of affect), flattening of affect, stiffening of affect, incongruity of affect, lability of affect, affective incontinence, and gelastic epilepsy. These disorders are characterized by reductions, abnormalities, or lack of control in emotional responses and expressions that differ from cultural norms.
The document discusses neurobiology of memory, including:
1. It describes the anatomical and functional organization of memory, focusing on the hippocampus formation, its afferents and efferents, and its role in learning and memory.
2. It discusses the different types of memory including explicit and implicit memory, and the cellular and molecular processes underlying short-term and long-term memory formation.
3. It explains mechanisms of memory formation and consolidation at the synaptic level, including the roles of proteins like CaMKII and CREB.
The document discusses different states of consciousness and levels of awareness. It describes dual processing and how information is processed both consciously and unconsciously. It also summarizes different stages of sleep including REM sleep and discusses various sleep disorders. The document outlines Freud's theory of dreams and their symbolic meaning. Finally, it categorizes and explains the effects of different classes of drugs including depressants, stimulants, and hallucinogens.
This document discusses disorders of memory and consciousness. It outlines seven stages of memory and three types: sensory, short-term, and long-term. It describes different memory systems like explicit and implicit memory. It also discusses various types of amnesia like psychogenic amnesia, organic amnesia, and transient global amnesia. Other topics covered include paramnesia, confabulation, misidentification, and changes in consciousness like lowering, restriction, and dream-like states.
The document discusses various types of abnormal perception including sensory distortions and sensory deceptions. It describes different types of sensory distortions that involve changes in intensity, quality, spatial form, and the experience of time. Specific distortions mentioned include hyperacusis, achromatopsia, macropsia, and metamorphopsia. Sensory deceptions involve illusions and hallucinations. Illusions involve misinterpretation of external stimuli while hallucinations are false perceptions without an external cause. Common types of hallucinations described are auditory, visual, olfactory, tactile, and those involving deep sensation. Specific hallucination syndromes like Charles Bonnet syndrome and phantom limb are also discussed.
Mood disorders, also known as affective disorders, are a category of mental health conditions characterized by significant changes in mood that affect a person's daily functioning, emotions, and overall quality of life. There are several types of mood disorders, with the most common being depression and bipolar disorder. this ppt contains mood disorders which is useful for the students of Basic B.Sc. Nursing.
This document provides an overview of memory disorders. It discusses the biology of memory including long term potentiation and the role of the CREB protein in memory formation. It describes different types of memory like sensory memory, short term memory, and long term memory. It also discusses various memory disorders like amnesia and distortions of memory. Organic amnesia can be acute, subacute, or chronic depending on the underlying brain disease. Psychogenic amnesia includes anxiety, katathymic, and hysterical amnesia. Memory can also be distorted through falsification, delusions, and confabulation.
This document provides an overview of disorders related to the experience of self. It begins by defining concepts like ego, self, and their components. It then discusses several types of disorders, including disorders of being (e.g. depersonalization), disorders of activity of self (e.g. passivity experiences), disorders of singleness or unity (e.g. autoscopy), and disorders of identity (e.g. possession states). For each disorder, it provides examples of how a person's experience of self could be altered, and associated clinical features. The document aims to describe how disorders may impact different aspects and functions of one's sense of self.
This document discusses disorders of self-experience and awareness. It defines self as how a person views themselves and their identity. There are four main aspects of self-awareness: awareness of existence, self-unity, continuity of identity, and boundaries. Disorders are discussed under each of these categories. For example, depersonalization is a disturbance in awareness of one's own activity where a person feels detached from themselves. Schizophrenia can involve feelings that one's thoughts are being controlled or stolen, disturbing boundaries. The document examines various conditions that can impact self-experience like depression, anxiety, substance use, and neurological disorders.
This document discusses higher cognitive functions and related cognitive functions such as apraxia and visual agnosia. It describes how higher cognitive functions involve manipulation of learned material and abstract thinking. Evaluation involves testing a person's fund of information, manipulation of old knowledge, social awareness, and abstract thinking through tasks like question answering, calculations, and proverb interpretation. Related functions like apraxia involve motor planning deficits, while visual agnosia involves object recognition deficits. Specific syndromes like Balint syndrome and Gerstmann syndrome are also summarized.
Schneider outlined three features of healthy thinking and five features of formal thought disorder. Delusions are firm, fixed beliefs not based on reality that are not amenable to rational arguments. Delusions can be categorized as bizarre, non-bizarre, mood-congruent, or mood-neutral. Causes include genetic, biological, psychological and environmental factors. Major types include primary delusions involving mood/atmosphere, perception, memory, or ideas of awareness, as well as delusions of grandeur, persecution, or somatic concerns. Delusions can occur in psychiatric illnesses like brief psychotic disorder, delusional disorder, dementia, mood disorders, Parkinson's disease, and postpartum psychosis.
Emotion, Classification of emotion, Normal emotional reactions, Abnormal emotional reactions, Abnormal reaction of emotion, Morbid expression of emotion, Communication of mood, Categories of emotion, Pathological changes in mood, Feeling of loss, Anhedonia, Feeling of impending disaster, Ecstasy, Feelings attached with the perception of objects, Feelings directed towards people, Free floating emotion, Experience and expression of emotion, Vital feelings, Religious feelings, Manic Depressive mood, Suicidal thoughts, Depersonalization, Internal restlessness, Cyclothymia and related conditions, Depression and loss, Grief, Helplessness and hopelessness, Mania, Manic thoughts
Can be defined as a dense loss of memory for recent events but with preserved intelligence and personality ,memory can be either totally or partially lost according to the extent of damage that was caused .
This document summarizes different aspects of memory, including the process of remembering, types of memory (sensory, short-term, and long-term), and memory impairments such as amnesia and distortions of memory called paramnesias. It describes various types of amnesia including psychogenic, organic, and those caused by acute or chronic brain diseases. It also discusses different types of paramnesias including false memories, confabulation, and distortions of recognition like déjà vu.
The document discusses memory and its stages including encoding, storage, and retrieval. It describes sensory memory, short-term memory, and long-term memory based on the Atkinson-Shiffrin model. It then discusses different types of memory impairment including amnesia, paramnesia, and hyperamnesia. Amnesia can be psychogenic or organic, with organic amnesia further divided into acute, subacute, and chronic forms based on the underlying brain disease. The document also discusses strategies to improve memory such as increasing oxygen to the brain and using cognitive strategies like elaboration, organization, and minimizing interference.
Here we'll discuss the Memory Disorders and their types. We'll learn about 3 types of memories. We'll discuss Amnesia and the types of amnesia as well as the various other pathologies related to memory. Hope this will help you all
The document discusses disorders of memory from a biological and clinical perspective. It describes the biology of memory including neural plasticity and long-term potentiation. It examines different types of memory and various memory disorders like amnesia. Case studies of patients with memory disorders are presented to illustrate the role of medial temporal structures in memory. Assessment techniques for memory in clinical settings are also outlined.
Amnesia is a loss of memory that can be caused by organic factors like brain damage or drugs, or functional factors like psychological defenses. There are two main types: anterograde amnesia where new memories are not formed, and retrograde amnesia where past memories cannot be recalled. Post-traumatic amnesia is usually due to head injury and can be transient or permanent, while dissociative amnesia has psychological causes like repressed memories. Improving memory involves techniques like repeated studying, associating information with cues, and testing yourself to determine what you have not yet learned.
This document discusses memory processes and disorders of memory. It describes the stages of memory as sensory memory, short-term memory, working memory, and long-term memory. It then discusses types of long-term memory and different forms of amnesia, including organic amnesia which can cause anterograde or retrograde memory loss. The document also covers psychogenic amnesias like dissociative amnesia and distortions of memory such as confabulation and retrospective falsification.
Dr. Zainab from the Department of Psychiatry at KMCH Guntur presented on consciousness and its disorders. Consciousness refers to one's awareness of themselves and their environment. It can be altered in three ways - a dream-like state as seen in delirium, a depressed state, or a restricted state. Delirium involves a lowering of consciousness and disordered thinking similar to dreams, along with possible hallucinations and confusion about time and place. Consciousness levels range from alertness to lethargy, obtundation, stupor, and coma - with decreasing responsiveness at each level. Proper assessment of consciousness level is crucial for an accurate mental status examination.
Cutting (1997) provided a framework wherein he classified emotional disorders based on intensity, duration, timing, quality of experience, expression and appropriateness to the object or social setting.
Understanding the encoding of memory and its retrieval is a complex task. The neurobiological correlates of memory have been summarised in this presentation for easy understanding of students.
This document discusses various disorders of emotion, including abnormal emotional predispositions, reactions, expressions, and morbid disorders and expressions of emotion. Specific disorders discussed include parathymia (blunting of affect), flattening of affect, stiffening of affect, incongruity of affect, lability of affect, affective incontinence, and gelastic epilepsy. These disorders are characterized by reductions, abnormalities, or lack of control in emotional responses and expressions that differ from cultural norms.
The document discusses neurobiology of memory, including:
1. It describes the anatomical and functional organization of memory, focusing on the hippocampus formation, its afferents and efferents, and its role in learning and memory.
2. It discusses the different types of memory including explicit and implicit memory, and the cellular and molecular processes underlying short-term and long-term memory formation.
3. It explains mechanisms of memory formation and consolidation at the synaptic level, including the roles of proteins like CaMKII and CREB.
The document discusses different states of consciousness and levels of awareness. It describes dual processing and how information is processed both consciously and unconsciously. It also summarizes different stages of sleep including REM sleep and discusses various sleep disorders. The document outlines Freud's theory of dreams and their symbolic meaning. Finally, it categorizes and explains the effects of different classes of drugs including depressants, stimulants, and hallucinogens.
This document discusses disorders of memory and consciousness. It outlines seven stages of memory and three types: sensory, short-term, and long-term. It describes different memory systems like explicit and implicit memory. It also discusses various types of amnesia like psychogenic amnesia, organic amnesia, and transient global amnesia. Other topics covered include paramnesia, confabulation, misidentification, and changes in consciousness like lowering, restriction, and dream-like states.
The document discusses various types of abnormal perception including sensory distortions and sensory deceptions. It describes different types of sensory distortions that involve changes in intensity, quality, spatial form, and the experience of time. Specific distortions mentioned include hyperacusis, achromatopsia, macropsia, and metamorphopsia. Sensory deceptions involve illusions and hallucinations. Illusions involve misinterpretation of external stimuli while hallucinations are false perceptions without an external cause. Common types of hallucinations described are auditory, visual, olfactory, tactile, and those involving deep sensation. Specific hallucination syndromes like Charles Bonnet syndrome and phantom limb are also discussed.
Mood disorders, also known as affective disorders, are a category of mental health conditions characterized by significant changes in mood that affect a person's daily functioning, emotions, and overall quality of life. There are several types of mood disorders, with the most common being depression and bipolar disorder. this ppt contains mood disorders which is useful for the students of Basic B.Sc. Nursing.
This document provides an overview of memory disorders. It discusses the biology of memory including long term potentiation and the role of the CREB protein in memory formation. It describes different types of memory like sensory memory, short term memory, and long term memory. It also discusses various memory disorders like amnesia and distortions of memory. Organic amnesia can be acute, subacute, or chronic depending on the underlying brain disease. Psychogenic amnesia includes anxiety, katathymic, and hysterical amnesia. Memory can also be distorted through falsification, delusions, and confabulation.
This document provides an overview of disorders related to the experience of self. It begins by defining concepts like ego, self, and their components. It then discusses several types of disorders, including disorders of being (e.g. depersonalization), disorders of activity of self (e.g. passivity experiences), disorders of singleness or unity (e.g. autoscopy), and disorders of identity (e.g. possession states). For each disorder, it provides examples of how a person's experience of self could be altered, and associated clinical features. The document aims to describe how disorders may impact different aspects and functions of one's sense of self.
This document discusses disorders of self-experience and awareness. It defines self as how a person views themselves and their identity. There are four main aspects of self-awareness: awareness of existence, self-unity, continuity of identity, and boundaries. Disorders are discussed under each of these categories. For example, depersonalization is a disturbance in awareness of one's own activity where a person feels detached from themselves. Schizophrenia can involve feelings that one's thoughts are being controlled or stolen, disturbing boundaries. The document examines various conditions that can impact self-experience like depression, anxiety, substance use, and neurological disorders.
This document discusses higher cognitive functions and related cognitive functions such as apraxia and visual agnosia. It describes how higher cognitive functions involve manipulation of learned material and abstract thinking. Evaluation involves testing a person's fund of information, manipulation of old knowledge, social awareness, and abstract thinking through tasks like question answering, calculations, and proverb interpretation. Related functions like apraxia involve motor planning deficits, while visual agnosia involves object recognition deficits. Specific syndromes like Balint syndrome and Gerstmann syndrome are also summarized.
Schneider outlined three features of healthy thinking and five features of formal thought disorder. Delusions are firm, fixed beliefs not based on reality that are not amenable to rational arguments. Delusions can be categorized as bizarre, non-bizarre, mood-congruent, or mood-neutral. Causes include genetic, biological, psychological and environmental factors. Major types include primary delusions involving mood/atmosphere, perception, memory, or ideas of awareness, as well as delusions of grandeur, persecution, or somatic concerns. Delusions can occur in psychiatric illnesses like brief psychotic disorder, delusional disorder, dementia, mood disorders, Parkinson's disease, and postpartum psychosis.
Emotion, Classification of emotion, Normal emotional reactions, Abnormal emotional reactions, Abnormal reaction of emotion, Morbid expression of emotion, Communication of mood, Categories of emotion, Pathological changes in mood, Feeling of loss, Anhedonia, Feeling of impending disaster, Ecstasy, Feelings attached with the perception of objects, Feelings directed towards people, Free floating emotion, Experience and expression of emotion, Vital feelings, Religious feelings, Manic Depressive mood, Suicidal thoughts, Depersonalization, Internal restlessness, Cyclothymia and related conditions, Depression and loss, Grief, Helplessness and hopelessness, Mania, Manic thoughts
Can be defined as a dense loss of memory for recent events but with preserved intelligence and personality ,memory can be either totally or partially lost according to the extent of damage that was caused .
This document summarizes different aspects of memory, including the process of remembering, types of memory (sensory, short-term, and long-term), and memory impairments such as amnesia and distortions of memory called paramnesias. It describes various types of amnesia including psychogenic, organic, and those caused by acute or chronic brain diseases. It also discusses different types of paramnesias including false memories, confabulation, and distortions of recognition like déjà vu.
The document discusses memory and its stages including encoding, storage, and retrieval. It describes sensory memory, short-term memory, and long-term memory based on the Atkinson-Shiffrin model. It then discusses different types of memory impairment including amnesia, paramnesia, and hyperamnesia. Amnesia can be psychogenic or organic, with organic amnesia further divided into acute, subacute, and chronic forms based on the underlying brain disease. The document also discusses strategies to improve memory such as increasing oxygen to the brain and using cognitive strategies like elaboration, organization, and minimizing interference.
This document discusses various topics related to memory, including the biology of memory, types of memory, and disorders of memory. It covers long-term potentiation as the candidate mechanism for mammalian long-term memory. It also describes different types of amnesia like organic amnesia, which can be acute, sub-acute or chronic, and psychogenic amnesia, which includes anxiety, katathymic and hysterical amnesia. Distortions of memory are also discussed, including confabulations, Munchausen's syndrome, and disorders of recognition like déjà vu and jamais vu.
disorders of memory .pptx disorder of memoryASHISH KUMAR
Disorders of MEMORY was presented by Dr. Anisha Joshi at BRD Medical College Gorakhpur under the chairmanship of Dr. Tapas Kumar Aich. The presentation discussed the mechanisms of memory including sensory memory, short term memory, and long term memory. It described models of working memory and different types of long term memory. The presentation also discussed various memory impairments including amnesia, paramnesias, and hyperamnesia as well as organic causes and psychogenic causes of amnesia.
Amnesia is a loss of memory caused by various brain injuries, diseases, and other factors. It involves an inability to recall information or form new memories. Common causes include traumatic brain injury, strokes, Alzheimer's disease, alcoholism, and certain infections or toxins. Symptoms range from difficulty recalling past events to problems learning new information. Treatment focuses on medication in some cases as well as lifestyle changes and memory aids to support those with amnesia.
1. Memory is the process of encoding, consolidating, storing, and retrieving information over time. It involves different areas of the brain and can be impacted by various factors.
2. There are three main types of memory: sensory memory, short-term memory, and long-term memory. Short-term memory only lasts a few seconds while long-term memory can last a lifetime.
3. Memory is not a perfect recording of events but rather a reconstructive process that can be influenced by suggestion, misinformation, and interference over time. Eyewitness testimony for example can be unreliable.
Memory consists of remembering past experiences and bringing them into conscious awareness later. There are three main types of memory: immediate/sensory memory which lasts 1-2 seconds, short-term memory which can hold 7 items for 20-30 seconds, and long-term memory which can store information for lifetimes. Forgetting is the inability to recall past learning and is caused by factors like the passage of time, interference from new learning, repression of unpleasant memories, poor health, and inadequate initial learning. Theories of forgetting include trace decay theory which argues memories naturally fade over time and interference theory where new learning blocks recall of old learning.
There are two main categories of learning: non-associative and associative. Memory involves information processing through sensory storage, short-term memory, and long-term memory. Forgetting can occur due to interference, where new memories block old ones, or due to memory decay over time as neuronal connections change. Factors like state dependency and context can also impact memory accuracy and recall.
This document summarizes relational learning and amnesia. It defines relational learning as a complex form of learning involving relations among stimuli, including spatial, episodic, and observational learning. It describes two types of long-term memory - declarative and non-declarative. Declarative memory, impaired in amnesia, involves facts and life events. Amnesia causes difficulty learning new information and remembering the past. There are two types of amnesia - anterograde involving new learning, and retrograde involving past memories. Damage to the hippocampus and related structures causes anterograde amnesia by impairing relational learning, or learning relationships among stimuli.
The document summarizes key aspects of memory from a psychological perspective. It discusses the physiology of memory including the role of the hippocampus and synaptic plasticity in memory formation. It also outlines several theories of memory like the information processing theory. The document elaborates on the organization and retrieval of long-term memory as well as factors that can lead to forgetting. It concludes by examining different types of amnesia including psychological amnesia from childhood and dreams as well as biological amnesia from conditions like Alzheimer's disease.
This document provides an overview of the neuropsychological basis of learning and memory. It discusses how case studies of patients with brain damage or amnesia helped reveal the neural correlates of memory. The case of patient H.M., who had bilateral removal of his medial temporal lobes, showed that this region is critical for forming new long-term memories. Damage limited to the hippocampus, as in patient R.B., also produced severe anterograde amnesia. The hippocampus is involved in consolidating new memories, even though long-term memory storage occurs elsewhere, like the neocortex. Damage to other regions like the diencephalon or anterior temporal lobes can also cause memory impairments by disrupting retrieval or
This document discusses examination of higher cerebral functions including level of consciousness, memory, orientation, judgement, reasoning, language, sensory functions, and motor functions. It provides details on testing various levels of consciousness from normal to impaired states like drowsiness, stupor, and coma. Memory is assessed using tests of immediate recall, recent memory, and remote memory. Related topics like persistent vegetative state, locked-in syndrome, and psychogenic unresponsiveness are also covered.
The document discusses several topics related to memory, including:
1. Memory is selective and reconstructive rather than like a videotape, as recall involves filling gaps with inferences that are sometimes unaware.
2. Confabulation occurs when people confuse events that happened to someone else or events that never occurred with their own memories. It is more likely under certain conditions.
3. Studies found that young children can be led to make false claims of events through suggestive questioning techniques.
4. Hypnosis is not considered reliable for courtroom testimony due to high rates of errors and false memories it can induce.
5. The three-box model of memory describes sensory memory, short-term memory,
This document provides an overview of a presentation on mental state examinations. It outlines learning objectives, suggested schemes for psychiatric and neurological examinations, and details on specific components of the neurological examination including consciousness, orientation, attention, memory, speech and language, abstract thinking, and calculations. Examples of tests that can be used to evaluate each component are also described.
The document outlines a presentation on mental state examinations, providing learning objectives and discussing schemes for conducting psychiatric and neurological examinations. It covers components of examinations like orientation, attention, memory, speech, language, abstract thinking, insight, judgement, and calculations. The goal is to acquire knowledge and techniques to evaluate a person's mental state and direct appropriate management.
This document discusses memory and forgetting. It defines memory as the ability to store experiences and recall them later. There are three types of memory: immediate/sensory memory which lasts 1-2 seconds; short-term memory which holds 7 items for 20-30 seconds; and long-term memory which can store information for a lifetime. Forgetting is the inability to recall something learned earlier and there are several types and causes of forgetting discussed. Theories of forgetting include trace decay theory, interference theory, and repression theory.
Memory is the ability to store, retain, and recall information and experiences over time. It involves a complex process of encoding, storing, and retrieving information. There are three main types of memory: immediate/sensory memory which lasts seconds, short-term memory which lasts 20-30 seconds, and long-term memory which can last a lifetime. Factors like age, health, stress, sleep, and practice affect memory. Theories of memory include trace decay theory which states memories weaken over time, interference theory where new learning can disrupt old memories, and repression theory where unpleasant memories are unconsciously blocked. Nurses can benefit from understanding memory to help patients and improve their own skills.
The document discusses various ways of understanding memory, including the length of storage, type of information remembered, and stages involved. It describes different memory models and then discusses various memory disturbances and disorders. Transient amnesias include transient global amnesia, transient epileptic amnesia, and alcoholic blackouts. Persistent memory disorders discussed include Korsakoff syndrome, herpes encephalitis, hypoxia, vascular disorders, and head injuries. Organic amnesic syndromes and their characteristics are also described.
This document summarizes several key models and processes of human memory. It describes memory as an active system involving encoding, storage, and retrieval. It discusses models such as the information processing model and levels of processing model. It outlines the different types of memory including sensory memory, short-term memory, and long-term memory. It also describes concepts like encoding specificity, recognition vs recall, and factors that can influence the reliability of memory retrieval.
This document provides an overview of memory from an information processing perspective. It discusses the main stages of memory as encoding, storage, and retrieval. It also describes the different types of memory, including sensory memory, short-term memory, and long-term memory. Various concepts related to memory are explained such as forgetting, déjà vu, flashbulb memories, and improving memory through techniques like chunking and mnemonic devices.
disorder of tought.pdf introduction to thoughtASHISH KUMAR
The document discusses disorders of thought. It describes three types of thinking: undirected fantasy thinking, imaginative thinking, and rational thinking. It outlines Schneider's three features of healthy thinking: constancy, organization, and continuity. It then discusses various disorders of thought including disorders of stream of thought such as flight of ideas, inhibition of thinking, circumstantiality, perseveration, and thought blocking. It also discusses disorders of possession of thought like obsessions, compulsions, and thought alienation. Finally, it examines disorders of content of thought focusing on delusions including their characteristics, origin, and types like primary and secondary delusions.
Personality disorders different types of personalityASHISH KUMAR
The document provides an overview of personality disorders including:
- Definitions and classifications from the DSM-5 and ICD-11. Key classifications include paranoid, schizoid, borderline, histrionic, narcissistic, and antisocial personality disorders.
- Etiology involving genetic, biological, and psychological factors.
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2. Memory is the encoding, storage, retrieval of
what was learned earlier (Morgan& king)
2
DEFINITION OF MEMORY
3. A THEORY OF GENERAL MEMORY FUNCTIONS
INFORMATION-PROCESSING THEORIES
3
THEORIES
4. According to this theory, Three distinct processes of memory have been
identified. These are an encoding process, a storage process, and a
retrieval .
Encoding is the process of receiving, sensory input and transforming it
into a form, or code, which can be stored;
storage is the process of process actually putting coded information
into memory
retrieval is the process of gaining access to stored, coded information
when it is needed.
4
A THEORY OF GENERAL MEMORY
FUNCTION
5. 5
INFORMATION PROCESSING MODEL
Stimuli Attention
Maintenance & Elaborative
Rehearsal
Encode
Retrieve
Sensory
Memory
Working
Memory
Long-Term
Memory
Forgotten Forgotten
7. SENSORY MEMORY
Registered for each of
the senses.
Fades within few seconds.
7
Facilitate rapid processing
of incoming stimuli.
Selective attention allows for the sifting of relevant material from
sensory memory for further processing and storage in short-term
memory
8. SHORT TERM/WORKING
MEMORY
Allow for the Storage of memories for much longer than few seconds available to sensory memory.
Aids constant updating of one’s surroundings.
Sensitive to disorders of brain tissue- such as AD
Ex: If you saw a person walking a dog and few seconds later heard a dog bark you would not be
surprised since you would identify the likely source of the sound from sensory(visual) memory that
had been processed and encoded in short term memory.
8
10. EXPLICIT / DECLARATIVE /
RELATIONAL MEMORY
Deals with facts and events, available to conscious for declaration.
Common examples: 5-minute recalls, asking the patient what they
had for breakfast.
1.Semantic memory/ memory for abstract facts: What is
the capital of India?
2.Episodic memory/ memory for specific events: What did
you have for breakfast?
Person is conscious of what they are remembering.
Stored in Hippocampus.
10
11. AUTOBIOGRAPHICAL MEMORY
Characterized by-
General recall of event.
An interpretation of event.
Recall of few specific details.
A type of episodic memory.
Associated with the active experience
of remembering
11
Memories of events and issues that
relate to oneself.
(Married? Wedding day?).
12. IMPLICIT/PROCEDURAL/SKILLS
MEMORY
12
Performance of tasks such as typing , swimming or cutting a loaf of bread.
Expressions of prior learning.
No active awareness that memory is being searched in undertaking particular skill.
Stored in limbic system, amygdala and cerebellum.
13. When memories have been rehearsed in short term memory
, they are encoded into long term memory
Storage of material in long term memory allows for recall of
events from past and for the utilisation of information learnt
through the education ststem
It is resilient to attack. Hippocampus is particulary imortant
in transfer of memory from short term to long term
13
LONG TERM MEMORY
14. Long-term memory
Explicit: (declarative)-Person is
conscious that they are
remembering
Episodic:
Memory for
specific events
Semantic:
Memory for
abstract facts
Non declarative (procedural): There is
no active awareness that memory is being
searched in undertaking the particular skill
14
16. 16
Memory Impairment
Amnesia -
Loss of memory
Paramnesia-
Distortions of
Memory
Hyperamnesia-
Exaggerated
registration, retention
and recall.
17. • Normal memory decay.
• interference from related material
• Proactive interference (old-new).
• Retroactive interference (new-old).
AMNESIAS
17
Partial or total inability to recall past
experiences and events.
May be Organic or psychogenic
Due to-
19. PSYCHOGENIC AMNESIAS
19
• Sudden amnesia during periods of extreme trauma.
Amnesia for personal identity.(Name, address, history,)and
personal events
person behaves appropriately to their background and
education
• May be associated with fugue.
• Common in those with h/o head injury in the past.
• Ability to perform complex behaviours is maintained.
1. Dissociative/ hysterical amnesia:
20. 20
• Inability to recall specific painful memories.
• Due to defense mechanism of repression.
• More persistent and circumscribed.
• Trigger/ psychotherapeutic intervention makes memory
available to consciousness.
• Lasts for many years.
• There is no loss of personal identity
2. Katathymic amnesia/ motivated forgetting:
21. ORGANIC AMNESIAS
21
• Memory is poor owing to disorders of perception and attention.
• There is failure to encode material in long term memory.
• Acute head injury there is amnesia –retrograde amnesia , which
embraces the events just before the injury
anterograde amnesia is amnesia occuring after the injury
• Black outs- Anterograde amnesia in alcohol dependent patients.
Indicate reversible brain damage.
Delirium- infection,epilepsy.
1. Acute brain disease:
22. 22
Unable to register new memories
Antero grade and retrograde amnesia
Antero grade amnesia –inability to learn new memories
Retrograde amnesia –inability to recall previously learned material
Remote memory: intact
Korsakoff’s syndrome is the amnestic syndome caused by thiamine deficiency
Other cause - cerobrovascular disease, multiple sclerosis ,ECT
2. Subacute coarse brain disease:
23. 23
• Amnesia extending over many years.
• Memory for recent events is lost before that for remote events.
• Ribot’s law of memory regression.
3. Chronic coarse brain disease:
24. OTHER AMNESIA.
Anxiety amnesia –occurs when there is
anxious preoccupation or poor
concentration such as depressive illness
or generalised anxiety
Depressive pseudo dementia- more
severe form of amnesia in depressive
disorder
Occurs D/t impaired concentration and
resolve once underlying disorder is
treated.
,
25. PARAMNESIA
25
Occur in normal subjects due to
process of normal forgetting.
Emotional problems and organic
states.
1. Distortions of recall
2. Distortions of recognition
27. DISTORTIONS OF RECALL
27
• Unintentional distortion occurs when it filtered through a person's
current emotional, experiential and cognitive state
• The depressed patient describes all past experiences in negative terms
due to the impact of his current mood.
• So a depressed person will highlight their failures while ignoring
and/or forgetting about their successes
• retrospective falsification is inversely related to the degree of insight
1. Retrospective falsification:
28. 28
• False memory - Recollection of an event which did not occur but
which the individual believes did take place
• Source amnesia: Difficulty in remembering the source from
which the information was acquired.(from one's own recall or
external source)
2. False memory/ Memory distrust syndrome :
29. 29
• Recollection that is partially true and partially false.
• Recalls only part of true memory.
• Childhood sexual abuse by neighbour, since too painful to
recall it to be done by brother.
3. Screen memory:
30. 30
• Falsification of memory occurring in clear consciousness in
association with organic pathology.
• Filling in of gaps in memory by imagined or untrue experiences
• 2 Broad patterns- Embarassed type -more common- fill in
gaps of memory as a result of awareness of deficit.
• Fantastic type- lacunae are filled in by details, exceeding the
need of memory.
4. Confabulation:
31. 31
• Fluent plausible lying/ pathological lying
confabulation that occurs in those without organic brain
pathology such as personality disorder of anti social and
hysterical type.
• Typically the subject describes various major events and
traumas or makes grandiose claims, and these often
present at a time of personal crisis, such as facing legal
proceedings
• These individuals Admit their lying.
5. Pseudologia fantastica:
32. 32
•Variant of pathological lying in which the individual presents
to the hospital with bogus medical illness complex medical
histories and often multiple surgical scars
•Munchausen’s by proxy -A proxy form of this condition
has been described in which the individual, usually a parent,
produces a factitious illness in someone else, generally their
child. This may lead to repeated presentations to hospital
over a prolonged period of time, and both diagnosis and
management can be very challenging in these cases.
6. Munchausen’s syndrome:
33. 33
• Vorbeireden ( approximate answering)
Patient understands the question but deliberately avoids the
correct answer
• Clouding of consciousness with disorientation, Auditory and
visual hallucination ,conversion symptoms and recent head
injury
• Ganser observed this amnesia in four criminals to avoid court
appearance
7. Vorbeireden or approximate answers:
34. 34
approximate answers described by Ganser.
• Clouding of consciousness with disorientation,pseudohallucination
• Recent history of head injury, typhus or severe emotional stress.
• Amnesia for the period during which the above symptoms were
manifest.
35. 35
• Experience of not remembering that one is remembering.
• A person writes a witty passage and does not realize that
they are quoting from some passage they have seen
elsewhere rather than writing something original.
8. Cryptamnesia:
36. 36
• The psychotic patient backdates his delusions in spite of the clear
evidence that the illness is of recent origin
• They will say that they have always been persecuted or they
have always been evil.
9. Retrospective delusions:
37. DISTORTIONS OF RECOGNITION
Déjà vu:
Problem with familiarity of
places and events.
Feeling of having
experienced current event in
past, although it has no basis
in fact.
Deja entendu:
Feeling of auditory
recognition.
Jamais vu:
Event has been experienced
before but is not presently
associated with appropriate
feelings of familiarity.
Deja pense:
New thought recognized as
having previously occurred.
37
39. • Exaggerated registration, retention and recall.
Flashbulb memories: are those memories
that are associated with intense emotion,
they are unusually vivid, detailed and long
lasting.For ex.the 9/11 terrorist bombings
39
HYPERAMNESIA
40. 40
•Flash backs: Sudden intrusive memories that are
associated with cognitive and emotional experiences of traumatic
events like such an accident
• One of characteristic symptom of PTSD. Also associated with
substance misuse disorders , emotional events.
• Flashbacks involving hallucinogenic experiences can occur in
association with hallucinogenic drugs and possibly cannabis use
after the short-term effects have worn off
• Eidetic images: Visual memories of almost hallucinatory vividness.
due to substance misuse, especially hallucinogenic agents.