Induced coding strategies and hemispheric differences in matching letter pairs.
The importance of task requirements in producing visual half-field asymmetries was investigated through manipulation of the criteria by which a central probe and a unilateral target letter were matched. Physical characteristics of the letters were emphasized (those made up of straight lines only vs those having at least one curved feature, e.g. F vs P). An interaction of visual field and type of judgment (match vs mismatch) was found for manual response time. Matching responses were faster to RVF than LVF probes and mismatches were faster to LVF than RVF probes. The significance of this interaction for models of hemispheric asymmetry is discussed.
D000328:Adult; D004193:Discrimination Learning; D004292:Dominance, Cerebral; D005556:Form Perception; D006801:Humans; D008297:Male; D010364:Pattern Recognition, Visual; D011930:Reaction Time; D011932:Reading