Unit 1 Flashcards
Abnormal Psychology
- concerned with understanding the nature, causes, and treatment of mental disorders.
- Study of mental disorders/ mental illnesses/ psycho. disorders/ psychopathology.
- what they look like, why they occur, what maintains them and their effect on people’s lives.
Psychopathology
- defined as a psychological illness diagnosed on the basis of the observed symptoms of the patient.
- One parsimonious and practical way to define abnormal behaviour is to ask
whether the behaviour causes impairment.
Impairment
the extent to which a behaviour or set of behaviours effects the successful functioning
in an important domain of the individual’s life in the person’s life including the psychological, interpersonal and performance/achievement domains.
Parameters of abnormality
- no universal agreement
- some elements are clear enough to adopt a “prototype” model of abnormality
- not an end in and of itself to determine or define abnormality
Name the domains
Suffering, maladaptiveness, Deviancy, Violation of standards of society, social discomfort and Irrationality and Unpredictability
Symptom
A single indicator of a problem
Can involve affective, cognitive, social, behavioural or somatic symptoms
Syndrome
A cluster or group of symptoms that all occur together
E.g. Depression patient
Acute condition
Relatively shorter, less than six months
Or refers to behavioural symptoms of high intensity
Chronic condition
Relatively long-standing and often permanent
It May apply to generally low-intensity disorders
Comorbidity
Presence of two or more disorders in the same individual
high in people with severe mental disorders
E.g. Person who drinks excessively and who is simultaneously depressed and suffering from an anxiety disorder.
Epidemiology
Study of distribution of a disease in a given population
Mental health epidemiology
A key component: determining the frequencies of mental disorders
Prevalence
number of active cases in a given population at a given period of time
figures are typically in percentages
different types: point, one year and lifetime
Point prevalence
The estimated proportion of actual, active cases in a population at a given point in time
Example: January 1st of next year
One year prevalence
count everyone who suffers from the disorder in question at any given point of time throughout the year
larger number
recovered, active and those whose disorder didn’t begin until the study started
Lifetime Prevalence
estimate of the number of people who suffered from a particular disorder at any time in their lives
include both currently ill and recovered individuals
tend to be higher than others
Incidence
the number of new cases that occur over a given period of time, typically one year.
exclude preexisting cases, hence lower than others
Classification
- nomenclature (naming system)
- enables us to structure information in a helpful manner
- has social and political implications
- delineates which types of psychological problems warrant insurance reimbursement and the extent of such reinforcement.
ICD Vs DSM
- differ in format
- same disorders
- similar definitions
- both require that the level of impairment a person is experiencing be taken into consideration when deciding if they meet the criteria for a mental disorder
- An international survey of psychiatrists in 66 countries comparing the use of the ICD-10 and DSM-IV found the former was more often used for clinical diagnosis while the latter was more valued for research.
ICD
- International statistical classification of diseases and related health problems.
- WHO
- medical classification for the coding of diseases, signs and symptoms, abnormal findings, complaints, social circumstances and external causes of injury or diseases, as maintained by the World Health Organization (WHO).
- work on the 10th edition began in 1983 and finished in 1992.
- The code set allows more than 14,400 different codes and permits the tracking of many new diagnoses.
- Using optional subclassifications, the codes can be expanded to over 16,000 codes.
- Using codes that are meant to be reported in a separate data field, the level of detail that is reported by ICD can be further increased, using a simplified multiaxial approach.
DSM
- Diagnostic and Statistical Manual for Mental Disorders
- APA
- Five revisions since 1952
- The coding system used in the DSM-IV is designed to correspond with the codes used in the ICD, although not all codes may match at all times because the two publications are not revised synchronously.
Classification history
Initial impetus: need to gather stat info in 1840; single category: idiocy/insanity
1917: a committee of statistics, APA together with a national commission of Mental Hygiene: “Statistical Manual for the use of Institutions of the insane” with 22 diagnoses.
DSM 1
In world war 2, US psychiatrists were involved in the Selection, Processing, Assessment and Treatment of soldiers.
1950: APA undertook a review and circulated an adaption of Medical 203, the VA system and Standard’s Nomenclature
After few revisions, DSM was approved in 1951 and published in 1952 with 106 mental disorders
DSM 2
Revised in 1968, 182 disorders
Predominant psychodynamic psychiatry, behavioural perspective and Kraepelin’s classification system
Symptoms were not detailed for specific disorders
They were reflections of broad underlying causes and maladaptive reactions to life problems, rooted in the distinction between neurosis and psychosis (roughly anxiety/depression broadly in touch with reality or hallucination/delusion appearing disconnected from reality).
Social and Biological knowledge was included in a model which did not emphasize the clear boundary between normal and abnormal.
DSM 2; seventh printing
RONAL BAYERS, Pro homosexuality psychiatrist
under threat and data from researchers like ALFRED KINSEY and EVELYN HOOKER: homosexuality was discarded as a category of mental disorder and the diagnosis was replaced with “Sexual orientation disturbance”
in 1974.