Effects of spatial arrangement of letter pairs in a name-matching task with unilateral and bilateral hemifield stimulation

In tachistoscopic studies requiring "same/different" judgements on pairs of stimuli, differences between unilateral and bilateral presentation have been interpreted in terms of higher level cognitive processing. However, unilateral presentation is usually confounded with vertical and bilat...

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Published inNeuropsychologia Vol. 26; no. 4; p. 591
Main Authors Schmitz-Gielsdorf, J, Willmes, K, Vondenhoff, C, Hartje, W
Format Journal Article
LanguageEnglish
Published England 1988
Subjects
Adult
Attention
Discrimination Learning
Dominance, Cerebral
Female
Form Perception
Humans
Male
Orientation
Pattern Recognition, Visual
Reaction Time
Semantics
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Summary:In tachistoscopic studies requiring "same/different" judgements on pairs of stimuli, differences between unilateral and bilateral presentation have been interpreted in terms of higher level cognitive processing. However, unilateral presentation is usually confounded with vertical and bilateral presentation with horizontal arrangement of stimuli. The effect of various stimulus arrangements was examined in two experiments. The results gave no evidence for an independent effect of uni- vs bilateral presentation, but rather a strong effect of the spatial arrangement such that pairs arranged on a straight line through the fixation point yield faster reaction times than any other vertical or horizontal arrangement.
ISSN:0028-3932
DOI:10.1016/0028-3932(88)90115-7