[Interspecies study of statistical correlations existing between the pineal gland size and weight and brain and body weight in two groups of mammals. Interspecies study of correlations between the pineal gland and brain in the rat and in man].

Network analysis procedures have been applied to study the cell patterns on the dorso medial and ventral lateral formation of the inferior colliculus of different species, i-e: Cat, Tat and Monkey. The results suggests the existence of important interspecific differences, more particularly in the primates. These differences are more obvious in the dorso medial formation. The functionnal implications of these results are discussed.