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Evolving Insight

Online ISBN:
9780191820281
Print ISBN:
9780198757078
Publisher:
Oxford University Press
Book

Evolving Insight

Richard W. Byrne
Richard W. Byrne
School of Psychology, University of St Andrews, Scotland
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Published online:
24 March 2016
Published in print:
1 January 2016
Online ISBN:
9780191820281
Print ISBN:
9780198757078
Publisher:
Oxford University Press

Abstract

This book develops a new theory of the evolutionary origins of human abilities to understand the world of objects and other people: the evolution of mind. Defining mental representation and computation as “insight,” it reviews the evidence for insight in the cognition of animals. Communication by vocalization and gesture, understanding others, and learning from them all provide evidence that such insight is not unique to humans, but is found also in apes and several other animal taxa. Neocortical change, driven by social complexity, relates to quantitative increase in sophisticated tactics but not the step-change of apes’ superior understanding. Equally, evidence for representation and computation of foraging information is widespread in animals. Where our closest relatives are “special” is in developing hierarchically organized programs of skilled action for feeding efficiently, based on learning complex behavior by imitation from others. As a result, the living great apes survived the late Miocene extinction, and can compete effectively with monkeys today. Imitation by behavior parsing of statistical regularities can explain these characteristics without mystique. However, behavior parsing also provides rough-and-ready, operational equivalents of causality and intentionality. The book proposes that the understanding of causality and intentionality evolved twice in human ancestry: the “pretty good” understanding given by behavior parsing, shared with other apes and related to cerebellar expansion; and the deeper understanding which requires language to model and is unique to humans. Ape-type insight may underlie non-verbal tests of intentionality and causal understanding, and much everyday human action.

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