[Individual and species interhemispheric asymmetry in animals].

Evidence of individual and species functional interhemispheric asymmetry (FIA) in animals is presented. Individual FIA was found in the majority of the experimental cats. The characteristics of individual FIA are defined. Several cases of species FIA are analysed: the dominance of the right fore-leg in hybrid mice, the dominance of the right hemisphere in albinos rats in differentiation of geometrical forms and the dominance of the right hemisphere in the EP amplitude of the cat's visual cortex.