TY - JOUR PY - 1991// TI - Judgments of relative position and distance on representations of spatial relations JO - Journal of experimental psychology: human perception and performance A1 - Sergent, J. SP - 762 EP - 780 VL - 17 IS - 3 N2 - This article examines Kosslyn's (1987) hypothesis of the unequal capacity of cerebral hemispheres to process categorical and coordinate spatial relations. Experiment 1 comprised 4 different tasks and failed to support this hypothesis in normal Ss. With the same stimulus patterns as in Kosslyn's study, the results failed to confirm cerebral asymmetry for representing the 2 types of spatial relations, in normal (Experiment 2) and commissurotomized (Experiment 3) Ss. In Experiment 4, a reduction in stimulus luminance produced a partial confirmation of the hypothesis as the right hemisphere proved more adept than the left hemisphere at operating on coordinate representations, whereas both were equally competent at processing categorical spatial-relation representations. The results suggest that the 2 hemispheres can operate on both types of spatial relations, but their respective efficiency depends on the quality of the representations to be processed.

Language: en

LA - en SN - 0096-1523 UR - http://dx.doi.org/ ID - ref1 ER -