DigiCat Publishing presents to you this special edition of "The Mental Life of Monkeys and Apes: A Study of Ideational Behavior" by Robert Mearns Yerkes. DigiCat Publishing considers every written word to be a legacy of humankind. Every DigiCat book has been carefully reproduced for republishing in a new modern format. The books are available in print, as well as ebooks. DigiCat hopes you will treat this work with the acknowledgment and passion it deserves as a classic of world literature.

What can the study of young monkeys and apes tell us about the minds of young humans? In this fascinating introduction to the study of primate minds, Juan Carlos Gomez identifies evolutionary resemblances--and differences--between human children and other primates. He argues that primate minds are best understood not as fixed collections of specialized cognitive capacities, but more dynamically, as a range of abilities that can surpass their original adaptations. In a lively overview of a distinguished body of cognitive developmental research among nonhuman primates, Gomez looks at knowledge of the physical world, causal reasoning (including the chimpanzee-like errors that human children make), and the contentious subjects of ape language, theory of mind, and imitation. Attempts to teach language to chimpanzees, as well as studies of the quality of some primate vocal communication in the wild, make a powerful case that primates have a natural capacity for relatively sophisticated communication, and considerable power to learn when humans teach them. Gomez concludes that for all cognitive psychology's interest in perception, information-processing, and reasoning, some essential functions of mental life are based on ideas that cannot be explicitly articulated. Nonhuman and human primates alike rely on implicit knowledge. Studying nonhuman primates helps us to understand this perplexing aspect of all primate minds.

A 1985 amendment to the Animal Welfare Act requires those who keep nonhuman primates to develop and follow appropriate plans for promoting the animals' psychological well-being. The amendment, however, provides few specifics. The Psychological Well-Being of Nonhuman Primates recommends practical approaches to meeting those requirements. It focuses on what is known about the psychological needs of primates and makes suggestions for assessing and promoting their well-being. This volume examines the elements of an effective care programâ€"social companionship, opportunities for species-typical activity, housing and sanitation, and daily care routinesâ€"and provides a helpful checklist for designing a plan for promoting psychological well-being. The book provides a wealth of specific and useful information about the psychological attributes and needs of the most widely used and exhibited nonhuman primates. Readable and well-organized, it will be welcomed by animal care and use committees, facilities administrators, enforcement inspectors, animal advocates, researchers, veterinarians, and caretakers.

This is the first collection of articles completely and explicitly devoted to the new field of 'comparative developmental evolutionary psychology' - that is, to studies of primate abilities based on frameworks drawn from developmental psychology and evolutionary biology. These frameworks include Piagetian and neo-Piagetian models as well as psycholinguistic ones. The articles in this collection - originating in Japan, Spain, Italy, France, Canada and the United States - represent a variety of backgrounds in human and nonhuman primate research, including psycholinguistics, developmental psychology, cultural and physical anthropology, ethology, and comparative psychology. The book focuses on such areas as the nature of culture, intelligence, language, and imitation; the differences among species in mental abilities and developmental patterns; and the evolution of life histories and of mental abilities and their neurological bases. The species studied include the African grey parrot, cebus and macaque monkeys, gorillas, orangutans, and both common and pygmy chimpanzees.

This is Volume IV of four in a collection on Comparative Psychology. Originally published in 1932, this study is referred to as a classic, in both historical terms and its usefulness in the study of primates.

Explores the complex nature of capuchins both in the wild and in captivity.

Vol. 49, no. 4, pt. 2 (July 1952) is the association's Publication manual.

This book investigates current field and theoretical information on great ape cognition.