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Chimeras and ConsciousnessEvolution of the Sensory Self$
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Lynn Margulis, Celeste A. Asikainen, and Wolfgang E. Krumbein

Print publication date: 2011

Print ISBN-13: 9780262015394

Published to MIT Press Scholarship Online: August 2013

DOI: 10.7551/mitpress/9780262015394.001.0001

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PRINTED FROM MIT PRESS SCHOLARSHIP ONLINE (www.mitpress.universitypressscholarship.com). (c) Copyright The MIT Press, 2022. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in MITSO for personal use.date: 26 June 2022

Animal Consciousness

Animal Consciousness

(p.220) (p.221) 19 Animal Consciousness
Chimeras and Consciousness

Gerhard Roth

The MIT Press

This chapter questions the attribution of “higher” human cognition just to the brain’s hypertrophied cortex. It highlights the high number of cortical neurons and the speed with which they process data. It discusses how thinking-like processes that began in mute cells exist in visualizing amphibians and symbol-manipulating humans. It compares tetrapods, including humans, in respect to brain size, organization, the isocortex, the frontal cortex, and prefrontal brain development. This chapter suggests that the capacities to interact with the natural and the social environment, to make decisions and plans based on previous experience, and to modify behavior quickly in accord with new demands all increased with the rise of consciousness.

Keywords:   human cognition, cortical neurons, amphibians, tetrapods, brain size, frontal cortex, prefrontal brain, isocortex, consciousness

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