Visual Attention and Cortical Circuits

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Overview

The neurobiology and psychology of attention have much to learn from each other. Neurobiologists recognize that responses in sensory cortex depend on the behavioral relevance of a stimulus, but have few ways to study how perception changes as a result. Psychologists have the conceptual and methodological tools to do just that, but are confounded by the multiple interpretations and theoretical ambiguities. This book attempts to bridge the two fields and to derive a comprehensive theory of attention from both neurobiological and psychological data.

It highlights situations where attention can be seen to alter both neural activity and psychophysical performance/phenomenal experience. This "bicultural" approach contributes not only to attention research but to the larger goal of linking neural activity to conscious experience.

The book focuses mainly on the effects of visual attention on the ventral and dorsal streams of visual cortex in humans and monkeys and the associated changes in visual performance. Several larger findings emerge: attention may involve more than one neural system; attention modulates all stages of cortical visual processing; the effect of attention is constrained by the intrinsic connectivity of cortex and the resulting contextual interactions; and the notion of a "saliency map" remains central to thinking about visual attention. The book also considers several approaches to evaluating the same variable through different methods, such as behavioral measurements, functional imaging, and single-unit recording.

Contributors: Narcisse P.

Bichot, Erik Blaser, Geoffrey M. Boynton, Jochen Braun, Maurizio Corbetta, Sean M.

Culhane, Florin Cutzu, Sophie Deneve, Robert Desimone, John Duncan, Sunil P. Gandhi,Charles D. Gilbert, David J. Heeger, James W. Holsapple, Alexander C. Huk, Minami Ito, Laurent Itti, Christof Koch, Peter E. Latham, Nilli Lavie, D. Kathleen Lee,Zhong-Lin Lu, John H.R. Maunsell, Carrie J. McAdams, Brad C. Motter, Alexandre Pouget, Adam Reeves, John H. Reynolds, Jeffrey D. Schall, Christian Scheier,Shinsuke Shimojo, Gordon L. Shulman, George Sperling, Kirk G. Thompson, John K.

Tsotsos, Katsumi Watanabe, Erich Weichselgartner, Gerald Westheimer.

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Product Details

  • ISBN-13: 9780262024938
  • Publisher: MIT Press
  • Publication date: 4/16/2001
  • Series: Bradford Books Series
  • Pages: 344
  • Product dimensions: 7.00 (w) x 9.00 (h) x 1.25 (d)

Meet the Author

Jochen Braun is Professor of Cognitive and Theoretical Neurobiology at the University of Plymouth.

Christof Koch is Professor of Biology and of Engineering at the California Institute of Technology and Chief Scientific Officer of the Allen Institute for Brain Science in Seattle. He is the author of The Quest for Consciousness and other books.

Joel L. Davis is Program Officer, Cognitive, Neural, and Biomolecular Science and Technology Division, Office of Naval Research.

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Table of Contents

Preface
Overview
1 Imaging Expectations and Attentional Modulations in the Human Brain 1
2 Neuronal Correlates of Attention in Human Visual Cortex 25
3 Capacity Limits in Selective Attention: Behavioral Evidence and Implications for Neural Activity 49
4 Frontal Lobe Function and the Control of Visual Attention 69
5 Attentional Modulation of Contextual Influences 89
6 Effects of Attention on the Responsiveness and Selectivity of Individual Neurons in Visual Cerebral Cortex 103
7 Neural Mechanisms of Attentional Selection 121
8 From Attention to Action in Frontal Cortex 137
9 Separating Attention from Chance in Active Visual Search 159
10 Two Computational Models of Attention 177
11 Perceptual Consequences of Multilevel Selection 215
12 The Resolution of Ambiguous Motion: Attentional Modulation and Development 243
13 The Relevance of Fisher Information for Theories of Cortical Computation and Attention 265
14 From Foundational Principles to a Hierarchical Selection Circuit for Attention 285
Contributors 307
Index 309
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