Cognitive dysfunction

Dysfunctional thinking

Disrupted thought processing in ventral striatum lead to negative symptoms, and that in cingulate gyri lead to positive symptoms

Metarepresentation dysfunction

Disruption of ability to reflect on own thoughts and behavior leads to thinking own actions are carried out by others

Result in hallucinations and delusions

Central control dysfunction

Derailment of thoughts as a word triggers associations and person cannot suppress automatic central responses to those

Leads to disorganised speech, disorganised thinking

Cognitive dysfunction

Dysfunctional thought processing causing the individual to evaluate information inappropriately and produce undesirable consequences

Stirling Stoop task experiment procedure

Participants with SZ spend longer on average to complete the Stroop task than those without SZ

Shows SZ patients have trouble suppressing the automatic word to say the word out loud instead of font colour

Shows impair plenty incognitive processing regarding central control

Bentall metarepresentation experiment

SZ patients struggled to distinguish between words they came up with themselves and words they’ve heard from researcher, compared to non SZ people

Suggesting SZ tendency to mis attribute source of action

Social sensitivity

Places blame on SZ patient as in CBT patients has to identify validity of their faulty beliefs, since it is seen as their fault, support for them might reduce, increase stigma of SZ in society

Biological cause more likely to receive support from others