The central thesis of Schizotypy: Implications for Illness and Health is both challenging and controversial: that the features of psychotic disorders actually lie on a continuum with, and form part of, normal behaviour and experience. The dispositional or 'schizotypal' traits associated with psychotic disorders certainly predispose an individual to mental illness, but they may also lead to positive outcomes such as enhanced creativity or spiritual experience. Discussion of each aspect of this theme is supported by extensive experimental and clinical evidence, (...) questioning the received medical wisdom which treats psychotic illness in the narrow context of neurological disease. The result is an authoritative and provocative overview of an important topic in psychological research and clinical practice. (shrink)

Insight problem solving is thought to underpin creative thought as it incorporates both divergent (generating multiple ideas and solutions) and convergent (arriving at the optimal solution) thinking approaches. The current literature on schizotypy and creativity is mixed and requires clarification. An alternate approach was employed by designing an exploratory web-based study using only correlates of schizotypal traits (paranoia, dissociation, cognitive failures, fantasy proneness, and unusual sleep experiences) and examining which (if any) predicted optimal performance on an insight problem-solving task. One (...) hundred and twenty-one participants were recruited online from the general population and completed the number reduction task. The discovery of the hidden rule (HR) was used as a measure of insight. Multivariate logistic regression analyses highlighted persecutory ideation to best predict the discovery of the HR (OR = 1.05; 95% CI 1.01–1.10, p = 0.017), with a one-point increase in persecutory ideas corresponding to the participant being 5% more likely to discover the HR. This result suggests that persecutory ideation, above other schizotypy correlates, may be involved in insight problem solving. (shrink)