Creativity, schizotypy, and laterality

  • Weinstein S
  • Graves R
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Previous research has found associations between creativity (or semantic association), schizotypy, and laterality when each of the 3 pairings has been studied individually. This study integrated previous research by providing measures of all 3 constructs in a within-Ss correlational design. Ss were 30 undergraduate students who completed 4 measures of creativity, 3 schizotypy scales, and a lateralised lexical decision task. Signal detection theory (SDT) was used to analyse the laterality data. Normal Ss with relatively lower SDT response criteria for stimuli presented to the left visual field/right hemisphere had higher schizotypy scores and higher performance on a verbal creativity test. Results extend previous findings by using SDT analyses to show that individuals scoring higher on certain schizotypy and creativity tests exhibited differences in response criteria to more readily accept right hemisphere responses, rather than exhibiting hemispheric differences in sensitivity (ability). Findings agree with theories proposing that higher schizotypy and creativity may arise from a lowering of criteria for evidence and/or from a shift to reliance on processing strategies that are more dependent on the right cerebral hemisphere. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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  • S. Weinstein

  • R. E. Graves

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