Schizophrenia Key Words Flashcards
(46 cards)
Schizophrenia
A severe mental disorder where contact with reality and insight are impaired
Classification
The process of organising symptoms into categories based on which symptoms frequently cluster together
Diagnosis
The identification of the nature of an illness or other problem by examination of the symptoms
DSM-5
The diagnostic and statistical manual of mental disorders (5th edition)
ICD-10
International classification of diseases (10th addition)
Positive symptoms
Atypical symptoms experienced in addition to normal experiences
Hallucinations
Sensory experiences that have either no basis in reality or are distorted perceptions of things that are there
Delusions
Beliefs that have no basis in reality
Negative symptoms
A typical experiences that represent the loss of an usual experience
Speech poverty
Reduced frequency and quality of speech
Avolition
Loss of motivation to carry out tasks and results in lowered activity levels
Reliability
Concerns the consistency of, in this case, diagnosis
Validity
Concerns the accuracy of, in this case, diagnosis
Co-morbidity
The occurrence of two disorders or conditions together. Where two conditions are frequently diagnosed together it calls into question the validity of classifying the two disorders seperately
Symptom overlap
When two or more conditions share the same symptoms. Where two conditions share the same symptoms it calls into questions the validity of classifying the two disorders separately
Gender bias
The tendency for diagnostic criteria to be applied differently to males and females
Culture bias SZ
The tendency to over diagnose members of other cultures as having in this case schizophrenia
Genetic explanations
A biological theory that sees genes inherited from one’s ancestors as forming the basis for in this case schizophrenia
Candidate genes
Specific genes that relate to a particular trait in this case schizophrenia
Aetiologically heterogeneous
Several different combinations of genes can lead to in this case schizophrenia
Concordance rate
A measure of similarity usually expressed as a percentage between two individuals or two sets of individuals on a given trait in this case schizophrenia
Polygenic
When a characteristic in this case schizophrenia is influenced by two or more genes
Neural correlates
Structural and functional changes in the brain that result in the characteristic symptoms of a behaviour or mental disorder in this case schizophrenia
Dopamine
A neurotransmitter that generally has an excitatory effect and is linked to the sensation of pleasure