Title Intentional Inhibition in Memory and Hallucinations: Directed Forgetting and Updating
Authors Soriano, M. F. , Jimenez, J. F. , ROMÁN FERNÁNDEZ, PATRICIA ELENA, Bajo, M. T.
External publication Si
Means Neuropsychology
Scope Article
Nature Científica
JCR Quartile 1
SJR Quartile 1
SJR Impact 1.755
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-58749102811&doi=10.1037%2fa0013739&partnerID=40&md5=7d02106843a3fd0fa7c076d9d41fa1cf
Publication date 01/01/2009
ISI 000262209300006
Scopus Id 2-s2.0-58749102811
DOI 10.1037/a0013739
Abstract Hallucinations have been recently associated with inhibitory deficits in memory. In this study, the authors investigated whether hallucinations were related to difficulties to inhibit irrelevant information from episodic memory (Experiment 1) and working memory (Experiment 2). In Experiment 1, a directed forgetting task was used. This task measures participants\' ability to intentionally forget some recently learned material, when instructions indicate that it is no longer relevant. In Experiment 2, an updating task was used. This task requires participants to intentionally suppress irrelevant information from working memory. Results showed that patients with schizophrenia with hallucinations presented inhibitory deficits in the directed forgetting task and an increase in the number of intrusions in the updating task, compared to patients without hallucinations and healthy controls. No correlations were found between indices of inhibition and other general, negative or positive symptoms. These findings support the existence of an association between intentional inhibition in memory and hallucinations, and they suggest that problems to suppress memory representations can underlie hallucinations in schizophrenia.
Keywords schizophrenia; inhibitory processes; directed forgetting; intrusions; hallucinations
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