Typicality effects in artificial categories: is there a hemisphere difference?
In category classification tasks, typicality effects are usually found: accuracy and reaction time depend upon distance from a prototype. In this study, subjects learned either verbal or nonverbal dot pattern categories, followed by a lateralized classification task. Comparable typicality effects were found in both reaction time and accuracy across visual fields for both verbal and nonverbal categories. Both hemispheres appeared to use a similarity-to-prototype matching strategy in classification. This indicates that merely having a verbal label does not differentiate classification in the two hemispheres.
Richards
L G
LG
Department of Psychology, Syracuse University, NY 13244-2340.
Chiarello
C
C
D000328:Adult; D001288:Attention; D003210:Concept Formation; D004193:Discrimination Learning; D004292:Dominance, Cerebral; D005260:Female; D006801:Humans; D008297:Male; D011939:Mental Recall; D010364:Pattern Recognition, Visual; D010469:Perceptual Distortion; D011930:Reaction Time; D012660:Semantics; D014163:Transfer, Psychology; D014706:Verbal Learning