Impairment of temporal attention in patients with schizophrenia

Neuroreport
Chiang-shan Ray LiYing-cheng Chen

Abstract

Evidence is accumulating that attention impairment is a core cognitive deficit in patients with schizophrenia. Here we investigate whether they are impaired in the temporal deployment of attention. Specifically, we explore how allocation of processing resources at one time point might affect the processing of a subsequent event differently in normal and schizophrenia subjects. Thirty patients and 31 age- and education-matched control subjects participated in a rapid serial visual presentation task, in which two targets (T1 and T2) were presented in rapid succession among a number of distractors. Subjects were required to identify T1 and detect T2. The sensitivity of T2 detection was analyzed with signal detection theory. The results showed that the attentional blink (the impairment in T2 detection following the identification of T1) is increased in magnitude and protracted in the patients. This observation suggests a less efficient mechanism in temporal gating of attention and in processing rapidly changing visual stimuli in schizophrenia patients.

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Citations

Jul 29, 2009·Journal of Autism and Developmental Disorders·Marion AmiraultWilly Mayo
May 5, 2004·Journal of Abnormal Psychology·Chiang-shan Ray LiYa-wen Hung
May 5, 2005·Journal of Abnormal Psychology·Rebecca L FullerJames M Gold
May 21, 2011·Psychology & Health·K Troy HarkerSaifudin Rashiq
Apr 25, 2007·Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition·Nellie Georgiou-KaristianisJohn L Bradshaw
Feb 9, 2012·Cognitive and Behavioral Neurology : Official Journal of the Society for Behavioral and Cognitive Neurology·Nellie Georgiou-KaristianisDianne M Sheppard
Mar 31, 2012·PloS One·Troy A W Visser, Jeneva L Ohan
Jul 10, 2012·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Kristopher I MathisMichael F Green
Dec 23, 2009·Neuroscience and Biobehavioral Reviews·Sander Martens, Brad Wyble
Dec 14, 2004·Journal of Psychiatric Research·Chiang-Shan Ray LiYong-Yi Yang
Jan 30, 2013·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Rolf VerlegerRebekka Lencer
Oct 20, 2009·Vision Research·Matthew W G Dye, Daphne Bavelier
Jun 10, 2014·Schizophrenia Research·Julie Walsh-MessingerDolores Malaspina
May 10, 2011·Journal of Psychiatric Research·Kristopher I MathisMichael F Green
Aug 5, 2008·Neuropsychologia·Lorenza S ColzatoBernhard Hommel
May 1, 2011·Wiley Interdisciplinary Reviews. Cognitive Science·Karen M Arnell, Kimron L Shapiro

Related Concepts

Mental Concentration
Overinclusion
Photic Stimulation
Schizophrenia

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