A/S ratio

Show Summary Details

Quick Reference

Association/sensation ratio, an index of the comparative intelligence of mammalian species formulated by the Canadian psychologist Donald O(lding) Hebb (1904–85), defined as brain volume devoted to association areas divided by brain volume devoted to sensory and motor areas. Compare encephalization quotient, progression index.

Subjects: Psychology.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.