VISUAL-SPATIAL-FREQUENCY MODEL OF CEREBRAL ASYMMETRY - A CRITICAL SURVEY OF BEHAVIORAL AND ELECTROPHYSIOLOGICAL STUDIES

In this article, the authors present a review of research on the role of the 2 hemispheres in processing spatial frequencies. J. Sergent (19 82a) postulated that the hemispheres differ in their sensitivity to fr equency characteristics of the sensory outputs on which cognitive proc esses are performed. Specifically, she proposed that the right hemisph ere displays greater efficiency than the left hemisphere in processing low-spatial-frequency content of a visual image, whereas the left hem isphere is better equipped than the right to deal with high frequencie s. The authors present an extensive review of behavioral and electroph ysiological studies whose researchers tried to verify Sergent's hypoth esis and offer its reformulation, taking into account the findings tha t have accumulated in the last 10 years.