Working Memory Consolidation Is Abnormally Slow in Schizophrenia.

This study reports evidence that patients with schizophrenia demonstrate a slowing of working memory (WM) consolidation, which is the process of transforming transient perceptual representations into durable WM representations. Sixteen schizophrenia patients and 16 healthy control participants perfo...

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Detalles Bibliográficos
Publicado en:Journal of Abnormal Psychology Vol. 114; no. 2; pp. 279 - 291
Autores principales: Fuller, Rebecca L., Luck, Steven J., McMahon, Robert P.
Formato: Artículo
Publicado: American Psychological Association May 2005
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Acceso en línea:Ver este registro en EBSCOhost
Descripción
Sumario:This study reports evidence that patients with schizophrenia demonstrate a slowing of working memory (WM) consolidation, which is the process of transforming transient perceptual representations into durable WM representations. Sixteen schizophrenia patients and 16 healthy control participants performed a task measuring the visual WM consolidation rate in a change-detection paradigm. A target display containing 3 colored squares was followed by a variable delay of 17-483 ms, a pattern mask, and then a test stimulus. This pattern mask does not interfere with perception but disrupts WM consolidation. Control participants reached no-mask performance by 250 ms, indicating completed WM consolidation, whereas patients failed to reach no-mask performance by 483 ms. Slowed consolidation may play an important and largely unrecognized role in schizophrenia. Reprinted by permission of the publisher.