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Cerebral PlasticityNew Perspectives$
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Leo M. Chalupa, Nicoletta Berardi, Matteo Caleo, Lucia Galli-Resta, and Tommaso Pizzorusso

Print publication date: 2011

Print ISBN-13: 9780262015233

Published to MIT Press Scholarship Online: August 2013

DOI: 10.7551/mitpress/9780262015233.001.0001

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The Two Dorsal Visual Streams and Their Role in Perception

The Two Dorsal Visual Streams and Their Role in Perception

(p.259) 21 The Two Dorsal Visual Streams and Their Role in Perception
Cerebral Plasticity

Rizzolatti Giacomo

Fogassi Leonardo

Luppino Giuseppe

The MIT Press

This chapter describes how visual information is transformed into motor acts. It examines the concept of two visual systems and illustrates that the dorsal stream is actually formed by two basically independent pathways. It also considers the issue of the role of different visual streams in perception. This chapter shows that V6 is an extrastriate area at the origin of a relatively direct visuomotor pathway, which conveys visual information to caudal superior parietal lobule (SPL) areas. It suggests that the two dorsal streams play a differential role in the organization of visuomotor behavior. It also demonstrates that the actions and space organization are the building blocks on which perception is built.

Keywords:   visual information, visual systems, dorsal stream, perception, visuomotor pathway, visuomotor behavior, superior parietal lobule

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