Delusions: Investigations Into the Psychology of Delusional Reasoning
Delusions are a key symptom of psychosis and yet there is no single book which considers delusion from a psychological perspective. In part this is because the syndrome of schizophrenia has captured the attention of many workers, and in part because delusions, as private mental phenomena, are not well suited to purely behavioural or observational methods of enquiry. For the past two decades, however, cognitive psychology has been in its ascendancy and delusions, as beliefs, are particularly amenable to investigation applying cognitive concepts and methods. Within this framework, it is possible to consider continuities to identify differences. This book, therefore, uniquely presents a psychological model of delusions, employing the neglected strategy of single symptom research tools of cognitive psychology.
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Reasoning rationality and delusions
Studies of reasoning in people with psychosis
The assessment of delusions
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abnormal argued assessment Bayesian beads behaviour belief formation biases bizarreness Brett-Jones causal cent certainty Chapman and Chapman Chapter characteristics of delusions cognitive Condition confirmation bias control group conviction correlations deluded groups deluded subjects delusion formation delusional beliefs delusional disorder delusions of reference described diagnosis dimensions draws effect estimate evidence example experimental external event formal thought disorder formation and maintenance frcp Garety hallucinations Hemsley hypothesis illusory correlations in-patients incorrigibility inference inter-rater reliability interview Jaspers Johnson-Laird judgement Latent Inhibition Maher Maudsley Hospital mental mood normal beliefs Oltmanns organic psychosis over-confidence paranoid group paranoid subjects patients perception person phenomena possible preoccupation present principal components analysis probabilistic inference processing proposed psychiatric psychological psychosis psychotic reasoning bias reasoning in deluded response scale schizo schizophrenic subjects scores significant Slade and Bentall stage statements stimuli suggests symptoms Table theories of delusion thinking variables