characteristics of schizophrenia Flashcards
Kurt Schneider (1959) what did he suggest?
To categorize the symptoms of schizophrenia in being positive or negative symptoms
Positive symptoms
Behaviours someone is exhibiting in ADDITION to ‘normal’ behaviours.
E.g. hallucinations, delusions, disordered thinking
Negative symptoms
Behaviours that are inhibiting someone from demonstrating ‘normal’ behaviours e.g. lack of speech (alogia) not reacting appropriately (anhedonia) etc
Hallucinations
Are perceptions that are unreal e.g. auditory hallucinations when people can hear voices, but they can present themselves in any sensory modality.
Examples of hallucinations
Tactile hallucinations - something touching there skin
Formication - sensation of small insects on or under skin
Delusions
Are beliefs that are unreal - they are usually experienced when there is no evidence of it being real.
Examples of Delusions
- delusions of persecution - based on the idea that a person, group or organisation want to harm the individual e.g. beleiving the MI5 are following you as they think youre a threat to national security.
- delusions of grandiosity - assume they are special in some way e.g. that they are more powerful have superior knowledge, even assume the identity of particular historical figure.
Disordered thinking (aka derailment)
- a persons thoughts and speech seem to jump from one topic to another for no apparent reason + show no logical flow of discussion.
- also some schizo believe they have thought insertion - when they believe someone else is putting in their thoughts
Alogia
lack of speech - even short answers can be a problem
Avolition
lack of motivation e.g. no desire in taking part in activities
Anhedonia
where they dont react appropriately to a pleasureable experience e.g. a football fan not showing any excitement that their team scored
Flatness of effect
when someone appears to have no emotion, show little facial emotional expressions such as smiling. It can be seen as apathetic as they dont show emotions like others e.g. when someone makes a joke, theyre the only one who doesnt laugh. They also have speech monotonous - they have a flatness in their tone of voice - no highs or lows in pitch.
Catatonic behaviour
these issues can range from widely repetitive useless movements to no/little movement - they may move for no reason e.g. pacing. May also emit unexpected gestures.
Echopraxia may occur - when they copy the movements of others around them
At the other end of the spectrum, the person can remain immobile in uncomfortable positions for prolonged period of time.