Classification of Schizophrenia
Published on Oct 11, 2016
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PRESENTATION OUTLINE
Classification of Schizophrenia
Photo by Teresa Suárez
You should be able to
- Explain positive symptoms
- Explain Negative symptoms
- Outline Hallucinations and delusions
- Outline Speech poverty
DSM-V - Criterion A
- a) Delusions
- b) Hallucinations
- c) Disoganised speech
- d) Grossly disorganised or catatonic
- e) Negative Symptoms
- Two or more of Criterion A unless hallucinations are bizarre or voice is continuous or two voices
Criterion B - Social Occupational Dysfunction
- Significant part of the time
- one or more areas of functioning - markedly below level prior to onset
Criterion C - Duration
- Continuous signs of disturbance - 6m
- Must include at least one month of Criterion A symptoms (or less if successfully treated)
- During non active periods disturbance may be limited to negative symptoms or two or more symptoms from Criterion A in attenuated form (odd beliefs / unsual perceptual experiences
Hallucinations
- perceptual distortions
- exaggeration of any sense modality
- Auditory - hearing voices are the most common
Delusions
- firmly held but false beliefs
- paranoid delusions
- delusions of grandeur
Disorganised Speech
- reflects problems organising thoughts
Grossly disorganised or catatonic behaviour
- unmotivated or unable to complete a task
- reduced reaction to immediate environment
- An abnormal condition variously characterized by stupor/innactivity, mania, and either rigidity or extreme flexibility of the limbs).
Link to Video: https://www.youtube.com/watch?v=gYwGmWWxY48
Disorganized behavior may range from simple problems sustaining goal-directed self-care behaviors such as personal hygiene to unpredictable and bizarre socially inappropriate outbursts. For example, people may not dress according to the weather, (i.e., they may wear a heavy coat in the middle of summer), they may wear odd or inappropriate makeup, they may shout at people for no apparent reason, or they may mutter to themselves continuously, etc. They may even strip off their clothing and run naked through the streets, while chewing on road kill. Most anything is possible.
Negative Symptoms
reduction or loss of normal functioning
Avolition
- reduction in self-initiated involvement in interests and desires
Affective Flattening
- reduction in the range an intensity of emotional expression
Anhedonia
- loss of interest in physical or social interaction
- lack of reactivity to normally pleasurable stimuli
Alogia
- Lack of speech fluency and productivity
- Due to blocked thoughts
- Short empty replies
