Abstract
The experiments were performed on white rats. Different techniques for forming conditioned reflexes were used. Hemisphere cortex inactivation was carried out by means of spreading depression. The right hemisphere was shown to dominate for space perception, simultaneous information processing, concrete characteristics perception, and deductive processing; the left hemisphere was shown to dominate for time perception, successive information processing, abstract characteristics perception, and inductive processing. A hypothesis of induction and deduction being the main factors determining function lateralization in the hemispheres of the animal brain was put forward.