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The Neuroscience of AttentionAttentional Control and Selection$
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George R. Mangun

Print publication date: 2012

Print ISBN-13: 9780195334364

Published to Oxford Scholarship Online: May 2012

DOI: 10.1093/acprof:oso/9780195334364.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2022. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use.date: 07 July 2022

Thalamic Control of Visual Attention

Thalamic Control of Visual Attention

(p.54) 3 Thalamic Control of Visual Attention
The Neuroscience of Attention

Sabine Kastner

Yuri B Saalmann

Keith A Schneider

Oxford University Press

This chapter discusses thalamocortical interactions, an understanding of which is central to understanding perception and cognition. The visual thalamus consists of three main nuclei: the lateral geniculate nucleus (LGN), the thalamic reticular nucleus (TRN), and the pulvinar. The LGN is the thalamic station in the retinocortical projection and has traditionally been viewed as the gateway to the visual cortex. The TRN forms a thin shell of neurons surrounding the thalamus and providing an interface between the thalamus and cortex in that thalamocortical and (layer 6) corticothalamic projections also have collateral branches to the TRN. The pulvinar is a large nucleus located in the dorsal thalamus. It contains several visual maps that are reciprocally connected to striate and extrastriate cortex, in addition to being substantially interconnected with frontal and parietal cortex.

Keywords:   visual thalamus, lateral geniculate nucleus, thalamic reticular nucleus, pulvinar, thalamocortical interactions, perception, cognition

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