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Cognitive mechanisms associated with auditory sensory gating

Jones, L.A, Hills, P.J, Dick, K.M, Jones, S.P and Bright, P (2016) 'Cognitive mechanisms associated with auditory sensory gating.' Brain and Cognition, 102. pp. 33-45. ISSN 0278-2626

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Abstract

Sensory gating is a neurophysiological measure of inhibition that is characterised by a reduction in the P50 event-related potential to a repeated identical stimulus. The objective of this work was to determine the cognitive mechanisms that relate to the neurological phenomenon of auditory sensory gating. Sixty participants underwent a battery of 10 cognitive tasks, including qualitatively different measures of attentional inhibition, working memory, and fluid intelligence. Participants additionally completed a paired-stimulus paradigm as a measure of auditory sensory gating. A correlational analysis revealed that several tasks correlated significantly with sensory gating. However once fluid intelligence and working memory were accounted for, only a measure of latent inhibition and accuracy scores on the continuous performance task showed significant sensitivity to sensory gating. We conclude that sensory gating reflects the identification of goal-irrelevant information at the encoding (input) stage and the subsequent ability to selectively attend to goal-relevant information based on that previous identification.

Item Type: Article
Keywords: sensory gating; inhibition; electroencephalogram; event-related potential (ERP) P50
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Q Science > Q Science (General)
Q Science > QP Physiology
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Divisions: College of Liberal Arts
Date Deposited: 03 Oct 2016 15:18
Last Modified: 28 Sep 2017 08:40
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