This document discusses the classification of psychiatric disorders. It defines classification as the process of grouping things based on similarities. In psychiatry, classification aims to enable patient care, communication between professionals, and research, though ideally it would be based on etiology. Major classifications include ICD-10 from WHO and DSM-IV from APA. These take categorical approaches but some argue for dimensional/spectrum models. Classification seeks to group syndromes, disorders, and illnesses while acknowledging limitations due to incomplete understanding of causes.
Schizophrenia is a severe, chronic and disabling mental disorder with a varying course. It is characterised by a breakdown of thought processes and by a deficit of typical emotional responses. It is a clinical syndrome
Examining the history, classification, causes and treatment of psychological ...Pubrica
What do we think? What do we feel? How do we react to a particular situation?
How do we define it?
How To Examine Whether Someone Is A Patient Of Mental Illness Or Not?
How To Do A Patient’s History Examined Systematically?
The main classes of mental illness :
Cause and Treatment of psychological disorder:
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DIAGNOSTIC AND STATISTICAL MANUAL VERSION -IV TEXT VERSIONritikajaiswal31
discussion about their history , definition of mental disorder , four criticism , how many categories in the DIAGNOSTIC AND STATISTICAL MANUAL -IV-TR and also discuss about their axes, psychological disorders , describe why it is use as diagnostic and statistical manual.The purpose of this presentation was my assignment ACADEMIC WRITING.
Schizophrenia is a severe, chronic and disabling mental disorder with a varying course. It is characterised by a breakdown of thought processes and by a deficit of typical emotional responses. It is a clinical syndrome
Examining the history, classification, causes and treatment of psychological ...Pubrica
What do we think? What do we feel? How do we react to a particular situation?
How do we define it?
How To Examine Whether Someone Is A Patient Of Mental Illness Or Not?
How To Do A Patient’s History Examined Systematically?
The main classes of mental illness :
Cause and Treatment of psychological disorder:
Detailed Information: https://bit.ly/2VGGP1Q
Reference: https://pubrica.com/services/physician-writing-services/
Why pubrica?
When you order our services, we promise you the following – Plagiarism free, always on Time, outstanding customer support, written to Standard, Unlimited Revisions support and High-quality Subject Matter Experts.
Contact us :
Web: https://pubrica.com/
Blog: https://pubrica.com/academy/
Email: sales@pubrica.com
WhatsApp : +91 9884350006
United Kingdom: +44-74248 10299
Related Topics:
Literature gap and future research
Meta-Analysis in evidence-based research
Biostatistics in clinical research
Scientific Communication in healthcare
DIAGNOSTIC AND STATISTICAL MANUAL VERSION -IV TEXT VERSIONritikajaiswal31
discussion about their history , definition of mental disorder , four criticism , how many categories in the DIAGNOSTIC AND STATISTICAL MANUAL -IV-TR and also discuss about their axes, psychological disorders , describe why it is use as diagnostic and statistical manual.The purpose of this presentation was my assignment ACADEMIC WRITING.
Similar to diagnosticclassification-140806083934-phpapp01.pdf (20)
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
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These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
Title: Sense of Smell
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
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Dr Sujoy Dasgupta presented the study on "Couples presenting to the infertility clinic- Do they really have infertility? – The unexplored stories of non-consummation" in the 13th Congress of the Asia Pacific Initiative on Reproduction (ASPIRE 2024) at Manila on 24 May, 2024.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
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Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
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- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
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1. U G C L A S S
D E P T . O F P S Y C H I A T R Y
Classification of Psychiatric
disorders
2. Classification
Def:- The process of putting things into groups based
on ways that they are alike (merriam dictionary)
Classification of diseases:- System of categories to
which morbid entities are assigned according to
some established criteria.
“Diagnosis and classification are means of viewing
the world” (Sartorius,N.1988).
4. Classification in Psychiatry…
Classification ideally must be based on aetiology
but do we know the aetiology???
Until we know the cause of the various mental
illnesses what to do???
So a Pragmatic/ Practical approach to classification
is being followed.
5. Why do we need classification?
Enable us to care for our patients,
To communicate with other health professionals,
To communicate between different geographical
boundaries,
To carry out high-quality research &
Based on epidemiological data to plan services.
6. Definitions
Syndrome:- It is a constellation of symptoms that are
unique as a group.
May contain some symptoms that occur in other syndromes
also, but
It is the particular combination of symptoms that makes the
syndrome specific.
In psychiatry many syndromes began as one specific
and striking symptom.
7. Definitions
Sometimes the symptoms of the syndrome seem to
have a meaningful coherence.
Ex, a case of mania may present with-
cheerfulness,
over-activity,
pressure of speech and
flight of ideas, all these can be understood as arising from the
elevated mood.
8. Definitions
Mental disorder:
Clinically significant behavioral or psychological syndrome
or pattern that occurs in an individual,
Associated with persistent distress/disability,
Or with significantly increased risk of suffering death, pain,
disability or an important loss of freedom.
Psychiatric nosology: branch of medicine
concerned with the classification and description of
psychiatric disorders.
9. Earlier Classifications
Initial classification either arising from disease of
the brain or those with no such basis, i.e. organic &
functional.
As knowledge of neurobiological processes is
increasing, their original meaning is being lost.
Schizophrenia & BPAD were examples of functional
disorders, but the the role of genetics and of neuro-
pathological abnormalities shows that there is at
least some organic basis for these disorders.
These categories of classification (i.e. organic versus
functional) are absurd now!!!...
10. Organic syndromes
Classified into acute, sub-acute & chronic.
Most common feature is alteration in consciousness.
It includes delirium.
It also includes substance use disorders due to use of
alcohol, cannabis, opium etc..,
Chronic organic states include various dementias,
generalized and focal, as well as amnestic disorders.
In modern classification they find their place in Foo
to F19.
11. Functional syndromes
Refers to those syndromes where there is no
apparent coarse brain disease.
Although increasingly it is recognized that some finer
variety of brain disease may exist, often at a cellular
level.
It was customary to divide these functional disorders
into neurosis and psychosis.
12. Neurosis Psychosis
Believed to have insight
into their illness.
Only a part of their
personality involved in
the disorder.
Intact reality testing.
Believed to lack insight
into their illness.
Whole of the
personality is distorted.
A false environment is
constructed out of their
distorted subjective
experience.
Functional disorders
13. Neurosis
Neurosis- difficult to define, broad, more info conveyed if
specific diagnosis used.
Used as aetiological meaning in psychodynamic
writings.
Not in used DSM 4.
Retained in ICD-10 “neurotic stress related somatoform
disorders”.
Used as non precise term.
14. Psychosis
Was used in ICD-9.
Psychosis- little use in classifying disorders.
Difficult to define, broad category.
Used as ICD-10 “acute & transient psychotic
disorders”.
Used in DSM-4 “Psychotic disorders NOS”.
15. Neurotic v/s Psychotic
Oversimplification!!!...
Many individuals with neurotic conditions have
No insight,
Far from accepting their illness &
May minimise or deny it totally.
While people with schizophrenia may seek help willingly
during or before episodes of relapse.
Moreover, personality
Can be changed significantly by non-psychotic disorders such as
depressive illness,
It may be intact in some people with psychotic disorders such as
persistent delusional disorder.
16. Modern classificatory systems
ICD -10- International Classification of Diseases–
Clinical descriptions and diagnostic guidelines
DSM-4-TR- Diagnostic and Statistical Manual of
Mental Disorders - 4th edition, Text Revision
DSM 5- 5Th edition of the text.
17. ICD
VERSION YEAR
ICD 1 1900
ICD 2 1910
ICD 3 1921
ICD 4 1930
ICD 5 1939
VERSION YEAR
ICD 6 1949
ICD 7 1958
ICD 8A 1968
ICD 9 1979
ICD 10 1999
ICD 11 2015
18. DSM
VERSION YEAR NO. DIAGNOSIS
DSM I 1952 106
DSM II 1968 182
DSM III 1980 265
DSM III R 1987 265
DSM IV 1994 365
DSM IV TR 2000 365
DSM 5 2013 400+
19. ICD-10 Chapter 5
Different versions-
Clinical descriptions & diagnostic guidelines (CDDG)
Diagnostic criteria for research (DCR)
Primary Care version
Multi-axial system
Chapter 5, F category (mental disorder).
New alphanumeric format-more categories.
Descriptive classification.
Groupings based on presumed aetiology e.g.
organic, non-organic psychotic etc..,
20. ICD- multi axial diagnosis
Axis I - Clinical diagnoses, both mental and general
medical disorders, personality disorders & Mental
retardation.
Axis II – Disablements, this axis appraises the
consequences of illness in terms of impairment in
the performance of basic social roles.
Axis III - Contextual Factors, portrays the context of
illness in terms of several ecological domains.
21. DSM IV TR
Axis 1- Mental disorder
Axis 2- Personality disorders/ Mental retardation
Axis 3- General medical conditions
Axis 4- Psychosocial stressors
Axis 5- GAF (General Activity of Functioning)
DSM 5- does not has the axis diagnosis…
22. ICD-10 v/s DSM IV
ICD-10: 1992
International-WHO
Different criteria for clinical
& research
All languages
Separate multi-axial
Not include social factors
(international)
Part of general classification
Alpha numerical
classification (F19, F25 etc..)
DSM IV: 1994
APA
One version
English
Multi-axial
Includes social factors
(national)
Only mental disorders
Numerical classification
(313.13, 256.21 etc..).
23. Diagnosis in ICD
F00-F09: Organic, including symptomatic, mental
disorders.
F10--F19: Mental and behavioural disorders due to
psychoactive substance use.
F20-F29: Schizophrenia, schizotypal and delusional
disorders.
F30-F39: Mood [affective] disorders.
F40-F48: Neurotic, stress-related and somatoform
disorders.
24. Diagnosis in ICD
F50-F59: Behavioural syndromes associated with
physiological disturbances and physical factors.
F60-F69: Disorders of adult personality and
behaviour.
F70-F79: Mental retardation.
F80-F89: Disorders of psychological development.
F90-F98: Behavioural and emotional disorders with
onset usually occurring in childhood and
adolescence.
25. Categorical Dimensional/ Spectrum
Based on separate (but may be
overlapping) categories of
disorders.
Termed as “Neo-Kraepelinian"
(after the psychiatrist Kraepelin).
It is intended to be atheoretical
with regard to aetiology.
Achieved widespread acceptance
in psychiatry, and
Generally been found to have
improved inter-rater reliability.
Ex:- Bipolar affective disorder,
Autism, Aspergers syndrome etc..
Based on broader underlying
"spectra", where each spectrum
links together a range of related
categorical diagnoses and
nonthreshold symptom patterns.
They are intended to be
theoretical with regard to
aetiology.
Problem- limited practical value
in clinical practice where yes/no
decisions often need to be made.
Ex:- Bipolar spectrum, Autistic
spectrum disorders etc..
Classification