Journal article
Dual hemispheric processing in a letter matching task
Perception & Psychophysics, Vol.38(4), pp.331-342
1985
Abstract
It has been reported that performance on recognition, detection, and matching tasks is enhanced if stimuli are projected to both sides of the visual field rather than to one side alone (Dimond, 1972). The present study investigated the claim that this phenomenon is due to the distribution of the burden of perceptual processing between the hemispheres. Three experiments were carried out using a matching paradigm in which RT and response errors were recorded. In all experiments, subjects were required to match two letters that were displayed separately on either side of a central fixation point (bilateral presentation) or were displayed together on the same side of the visual field (unilateral presentation). It was found that although lateral interference between adjacent stimuli was significantly implicated in the phenomenon, a strong residual effect, which could be tentatively ascribed to hemispheric mechanisms, remained in relation to letter name matches. It is argued that a model based on parallel hemispheric decision processes provides a better account of the data than does one based upon the notion of distributed perceptual processing.
Details
- Title
- Dual hemispheric processing in a letter matching task
- Authors/Creators
- J. Coney (Author/Creator) - Murdoch University
- Publication Details
- Perception & Psychophysics, Vol.38(4), pp.331-342
- Publisher
- Psychonomic Society Inc.
- Identifiers
- 991005541140107891
- Murdoch Affiliation
- School of Psychology
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 1 Clinical & Life Sciences
- 1.7 Neuroscanning
- 1.7.191 Language Neurocognition
- Web Of Science research areas
- Psychology
- Psychology, Experimental
- ESI research areas
- Psychiatry/Psychology