Abstract
Effects of Surrounding Noise on Visual Field Differences in Human Silhouette Recognition
T. Hatta
To examine if concurrently presented surrounding stimuli affect figure recognition, subjects matched figures which appeared in the left or the right visual field with surrounding noise with the previously presented standard figure. There were four types of comparison stimuli; man's silhouette is surrounded by 1) Man's silhouettes, 2) Women's silhouettes, 3) Children's silhouettes, and 4) Nothing. The results indicated that firstly the matching was affected by the presence of neighbouring stimuli and secondly the condition 4) showed the left visual field advantage while the other conditions did not show visual field difference. Possible mechanisms in the cerebral differential functioning are discussed.