The Mental Life of Monkeys and Apes: A Study of Ideational Behavior

The Mental Life of Monkeys and Apes: A Study of Ideational Behavior, published in 1916 by Robert Mearns Yerkes, examines the cognitive and behavioral processes of primates, focusing on their problem-solving abilities and emotional responses. Yerkes outlines his research methodology, which includes a specially designed multiple-choice apparatus, and discusses the implications of his findings for understanding animal intelligence. This work is notable for its early exploration of primate psychology and its contribution to the field of animal cognition.