Research article summary (published 24 Oct 2007):

Spatial compatibility between stimulated eye and response location.

Full Abstract

It is assumed that the eye-of-origin information is restricted to the visual cortex. However, reactions to monocular stimuli are faster when the response location and the stimulated eye are ipsilateral (compatible trials) than when they are contralateral (incompatible trials). We investigated whether this spatial compatibility effect had the characteristics of the conventional visual Simon effect. We found that the size of the compatibility effect was constant throughout the reaction time distribution, and there were no electrophysiological signs of incorrect response activation. These results indicate that the spatial code derived from eye-of-origin information does not produce a transient activation of the spatially compatible response, but a more tonic influence on response selection. The results also show that monocular information can exert influence outside the visual cortex and that spatial codes can be produced in the absence of attention movements.

Author information

Author/s: Valle-Inclán, Fernando (F); Sohn, Felix (F); Redondo, Milagros (M);

Affiliation: Department of Psychology, University of La Coruña, La Coruña, Spain. fval(-atsign-)udc.es

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Psychophysiology (Psychophysiology), published in United States. (Language: eng)

Reference: 2008-Mar; vol 45 (issue 2) : pp 279-85

Dates: Created 2008/02/11; Completed 2008/04/09; Revised 2008/11/21;

PMID: 17971057, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult Electroencephalography Female Functional Laterality - physiology Humans Male Ocular Physiological Phenomena

Ocular Physiological Phenomena Photic Stimulation Psychomotor Performance - physiology Reaction Time - physiology Space Perception - physiology Vision, Monocular - physiology Visual Cortex - physiology

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