Associations of hallucination proneness with free-recall intrusions and response bias in a nonclinical sample

作者：Brebion Gildas^*; Laroi Frank; Van der Linden Martial

来源：Journal of Clinical and Experimental Neuropsychology, 2010, 32(8): 847-854.

DOI：10.1080/13803391003596397

• Hallucinations
• Intrusions
• Response bias
• Source memory
• Verbal memory

Background: Hallucinations in patients with schizophrenia have been associated with a liberal response bias in signal detection and recognition tasks and with various types of source-memory error. We investigated the associations of hallucination proneness with free-recall intrusions and false recognitions of words in a nonclinical sample. Method: A total of 81 healthy individuals were administered a verbal memory task involving free recall and recognition of one nonorganizable and one semantically organizable list of words. Hallucination proneness was assessed by means of a self-rating scale. Results: Global hallucination proneness was associated with free-recall intrusions in the nonorganizable list and with a response bias reflecting tendency to make false recognitions of nontarget words in both types of list. The verbal hallucination score was associated with more intrusions and with a reduced tendency to make false recognitions of words. Conclusions: The associations between global hallucination proneness and two types of verbal memory error in a nonclinical sample corroborate those observed in patients with schizophrenia and suggest that common cognitive mechanisms underlie hallucinations in psychiatric and nonclinical individuals.

• 出版日期2010