Disorders of perception
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This speaks about the perceptual abnormalities and discusses the phenomenology related to the disorders of perception.
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Disorders of perception
The document provides an overview of disorders of perception including perception, imagery, synesthesia, abnormal perceptions, sensory distortions, and sensory deceptions such as illusions and hallucinations. It defines these terms and describes their characteristics. For example, it states that perception is an active process influenced by various factors, while imagery involves internal mental representations. It also distinguishes between different types of sensory distortions, illusions, hallucinations and pseudohallucinations. The document serves to explain these concepts of abnormal perception to healthcare providers.
Disorders of thought 1
This document provides an overview of disorders of thought, including their classification and specific disorders. It discusses disorders of intelligence, thinking, stream of thought, content of thought, and form of thought. Specific disorders covered include learning disabilities, dementia, schizophrenia deterioration, amentia, flight of ideas, inhibition/slowing of thinking, circumstantiality, perseveration, thought blocking, obsessions, compulsions, thought alienation, and formal thought disorder. Theories from Bleuler, Cameron, Goldstein, Chapman, Payne, and Schneider regarding thought disorders are also summarized.
Disorders of perception
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.
Disorders of memory
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.
Delusion
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.
Disorders of Perception
Disorders of Perception can involve sensory distortions or deceptions. Sensory distortions include changes in intensity, quality, or spatial form of real stimuli. Sensory deceptions include illusions and hallucinations. Hallucinations are false perceptions without an external stimulus and can involve any sense. They are caused by intense emotions, suggestion, psychiatric disorders, sensory organ disorders, sensory deprivation, or central nervous system disorders. Auditory hallucinations in psychiatry range from elementary sounds to fully formed voices. Visual hallucinations include flashes of light or fully formed visions. Hallucinations of other senses like smell are rarer.
Perception disorders psychopathology dr prashant mishra
1. The document discusses perception disorders and psychopathology, defining sensory distortions as changes in perception due to intensity, quality or spatial changes, while sensory deceptions include illusions and hallucinations.
2. It describes different types of sensory distortions including changes in intensity, quality and spatial form, as well as distortions of time perception.
3. Hallucinations are defined as perceptions without an external stimulus, and can be caused by emotions, suggestion, psychiatric disorders, sensory organ disorders, sensory deprivation or central nervous system disorders. Different senses can experience hallucinations.
Disorders of affect and emotion
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.
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Disorders of perception
The document provides an overview of disorders of perception including perception, imagery, synesthesia, abnormal perceptions, sensory distortions, and sensory deceptions such as illusions and hallucinations. It defines these terms and describes their characteristics. For example, it states that perception is an active process influenced by various factors, while imagery involves internal mental representations. It also distinguishes between different types of sensory distortions, illusions, hallucinations and pseudohallucinations. The document serves to explain these concepts of abnormal perception to healthcare providers.
Disorders of thought 1
This document provides an overview of disorders of thought, including their classification and specific disorders. It discusses disorders of intelligence, thinking, stream of thought, content of thought, and form of thought. Specific disorders covered include learning disabilities, dementia, schizophrenia deterioration, amentia, flight of ideas, inhibition/slowing of thinking, circumstantiality, perseveration, thought blocking, obsessions, compulsions, thought alienation, and formal thought disorder. Theories from Bleuler, Cameron, Goldstein, Chapman, Payne, and Schneider regarding thought disorders are also summarized.
Disorders of perception
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.
Disorders of memory
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.
Delusion
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.
Disorders of Perception
Disorders of Perception can involve sensory distortions or deceptions. Sensory distortions include changes in intensity, quality, or spatial form of real stimuli. Sensory deceptions include illusions and hallucinations. Hallucinations are false perceptions without an external stimulus and can involve any sense. They are caused by intense emotions, suggestion, psychiatric disorders, sensory organ disorders, sensory deprivation, or central nervous system disorders. Auditory hallucinations in psychiatry range from elementary sounds to fully formed voices. Visual hallucinations include flashes of light or fully formed visions. Hallucinations of other senses like smell are rarer.
Perception disorders psychopathology dr prashant mishra
1. The document discusses perception disorders and psychopathology, defining sensory distortions as changes in perception due to intensity, quality or spatial changes, while sensory deceptions include illusions and hallucinations.
2. It describes different types of sensory distortions including changes in intensity, quality and spatial form, as well as distortions of time perception.
3. Hallucinations are defined as perceptions without an external stimulus, and can be caused by emotions, suggestion, psychiatric disorders, sensory organ disorders, sensory deprivation or central nervous system disorders. Different senses can experience hallucinations.
Disorders of affect and emotion
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.
Disorders of perception
The document discusses various types of disorders of perception and thought. It describes sensory distortions and deceptions that can occur. It also defines and provides examples of illusions and hallucinations. Regarding thought disorders, it discusses disorders of content such as delusions and overvalued ideas. It also covers disorders of possession like obsessions and disorders of continuity such as perseveration and thought block.
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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.
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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.
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The document discusses various types of perceptual abnormalities including sensory distortions, deceptions, and illusions. It describes abnormalities in different senses such as vision, hearing, touch, and others. Sensory distortions can involve changes in intensity, color, shape, size, motion, or location of perceived objects. Illusions can be completion, affective, or pareidolic in nature. Hallucinations are false perceptions without an external stimulus and can occur in any sensory modality. Organic causes as well as psychiatric conditions can produce different perceptual abnormalities. The document provides examples and details of many specific perceptual disorders.
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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.
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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.
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Disorders of perception
- 1. DISORDERS OF PERCEPTION Mr. VARUN MUTHUCHAMY Dr. DEVVARATA KUMAR Department of Clinical Psychology NIMHANS
- 2. SENSATION Definition: Detection of stimulus (external or internal) Passive process Bottom-Up Processing. Process: Receptors detect raw information Transduction into electrical impulse Electrical impulses reaches cortical regions.
- 3. PERCEPTION Definition: Selection, Recognition and Interpretation of sensory stimulus Top-Down Processing (Templates/Prototypes/Features). Active process Mediated by: Attention Context Memory Affect and other subjective psychological components.
- 4. PERCEPTUAL PROCESS Stereotypes Process 1. Selection 2. Organisation Cultural values Expectations and Desires Self concept Experience Perceptual Schemas Gestalt Law of Grouping Needs and Motives 3. Interpretation
- 6. DISORDERS OF PERCEPTION DISTORTION Changes in Spatial Form Changes in intensity Changes in quality Splitting of perception DECEPTION Illusion Hallucination
- 7. DISTORTION Definition: Change in perception as a result of change in the attribute of the stimulus. 1. Intensity: Hyperanesthesia Hypoanesthesia 2. Quality: Gooseberry- Water- Sweet 3. Spatial form: Micropsia Hemimicropsia Akinetopsia Macropsia Paraprosopia Dysmegalopsia Teleopsia and Pelopsia Increased or decreased physiological threshold
- 8. DECEPTION Definition: False perception. (S = may/may not) 1. Illusion: Stimulus + Imagery= false perception Types: a. completion illusion. (Reading) b. Affect illusion. (Depressed) c. Pareidolia. (Vivid-without effort) d. Fantastic Illusion. (Pig face)
- 9. DECEPTION (Cont.) 2. Hallucination: False perception which is not a sensory distortion or misinterpretation, but which occurs at the same time as real perception. a. Hallucination and True perception. b. Hallucination and imagery c. Hallucination and pseudo-hallucination. InsightWill space ClarityConstancy
- 10. CAUSES: 1. Emotion: Depression (Disjoined) 2. Suggestion: Hypnosis Task motivating instruction- Hysterical Psychosis 3. Sensory Deprivation: Few hours of minimised stimulus Changing VH and repetitive AH 4. Disorders of central nervous system: Lesions in brain Epilepsy (MTS)
- 11. SPECIAL KINDS OF HALLUCINATIONS 1. Functional 2. Reflex 3. Extracampine 4. Autoscopy 5. Hypnogogic/Hypnopompic 6. Organic hallucination.
- 12. PERCEPTION IN MSE Perception differentiate from thought? Timing? Description? (intensity, distance, content, no of persons) Control? Insight? Clarity?
- 13. THANK YOU
Editor's Notes
- in the cortical regions Template-specific space/pattern Prototype- examplery Feature-specific attribute or aspect
- Few examples for each
- Imagery- internal mental representation, drawn from memory
- Hyper/Hypo acusia Dysmegalopsia aka metamorphosia- women seeing everyone upside down