Intact Serial Dependence in Schizophrenia: Evidence from an Orientation Adjustment Task.

Autor:	Pascucci D; Laboratory of Psychophysics, Brain Mind Institute, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland., Roinishvili M; Institute of Cognitive Neurosciences, Free University of Tbilisi, Tbilisi, Georgia., Chkonia E; Department of Psychiatry, Tbilisi State Medical University, Tbilisi, Georgia., Brand A; Laboratory of Psychophysics, Brain Mind Institute, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland., Whitney D; Department of Psychology, University of California, Berkeley, CA, USA.; Helen Wills Neuroscience Institute, University of California, Berkeley, CA, USA.; Vision Science Group, University of California, Berkeley, CA, USA., Herzog MH; Laboratory of Psychophysics, Brain Mind Institute, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland., Manassi M; School of Psychology, University of Aberdeen, King's College, Aberdeen, UK.
Jazyk:	angličtina
Zdroj:	Schizophrenia bulletin [Schizophr Bull] 2024 Jun 27. Date of Electronic Publication: 2024 Jun 27.
DOI:	10.1093/schbul/sbae106
Abstrakt:	Background and Hypothesis: For a long time, it was proposed that schizophrenia (SCZ) patients rely more on sensory input and less on prior information, potentially leading to reduced serial dependence-ie, a reduced influence of prior stimuli in perceptual tasks. However, existing evidence is constrained to a few paradigms, and whether reduced serial dependence reflects a general characteristic of the disease remains unclear. Study Design: We investigated serial dependence in 26 SCZ patients and 27 healthy controls (CNT) to evaluate the influence of prior stimuli in a classic visual orientation adjustment task, a paradigm not previously tested in this context. Study Results: As expected, the CNT group exhibited clear serial dependence, with systematic biases toward the orientation of stimuli shown in the preceding trials. Serial dependence in SCZ patients was largely comparable to that in the CNT group. Conclusions: These findings challenge the prevailing notion of reduced serial dependence in SCZ, suggesting that observed differences between healthy CNT and patients may depend on aspects of perceptual or cognitive processing that are currently not understood. (© The Author(s) 2024. Published by Oxford University Press on behalf of the Maryland Psychiatric Research Center.)
Databáze:	MEDLINE
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