[Split brain and the problem of interhemispheric relations].

For the last 15-20 years the study of interhemispheric relations made a big progress. This progress was facilitated by use of new methods in combination with midsagittal sections of comissural connections at different levels. An assumption is made that interhemispheric exchange of sensory information is of certain importance for the short-term memory and for compensatory mechanisms of the brain. The importance of hemispheric interaction for coordinated motor reactions and for subtle spatial orientation of animals is determined. Observation of patients with surgically dissected brain is a big contribution to further study of interhemispheric relations.