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Visual perception in incomplete images: neuropsychological analysis
Participants were 47 right-handed children (with mean age 6.5) tested applying the methods of neuropsychological assessment. The data has allowed distinguishing 3 experimental groups with relative weakness of: (1) executive function, or (2) analytic left hemisphere strategy of visual and verbal processing, or (3) holistic right hemisphere strategy of information processing. Participants were asked to recognize and name 12 monochromatic incomplete images. Three experimental groups were significantly different in their recognition capacity (p=0,01; 1 group>2 group>3 group). The verbal-perceptive errors were typical for al three groups; the perceptive errors close to the target were more attributable for group 2; the fragmentation errors (the problem to recognize the whole image by its part) were characteristic for group 3; the perceptive errors far from the target were more typical for groups 1 and 3. Performance in incomplete-images test depends on the participant’s individual neuropsychological profile therefore the incomplete-images test is appropriate for diagnosis of neuropsychological individual differences in visual perception.