The first half second : the microgenesis and temporal dynamics of unconscious and conscious visual processes / edited by Haluk Öğmen and Bruno G. Breitmeyer.

Format:

Book

Contributor:

Öğmen, Haluk, editor.

Breitmeyer, Bruno G., editor.

Language:

English

Subjects (All):

Consciousness.

Neuropsychology.

Visual perception.

Physical Description:

1 online resource (vii, 410 pages) : illustrations

Other Title:

MIT Press CogNet.

Place of Publication:

Cambridge, Massachusetts : The MIT Press, [2006]

System Details:

text file

Summary:

Recent advances in the study of visual cognition and consciousness have dealt primarily with steady-state properties of visual processing, with little attention to its dynamic aspects. The First Half Second brings together for the first time the latest research on the dynamics of conscious and unconscious processing of visual information, examining the time course of visual processes from the moment a stimulus is presented until it registers in a behavioral response or in consciousness a few hundred milliseconds later. The contributors analyze this "first half second" of visual processing-known as its microgenesis-from a variety of perspectives, including neuroscience, neuropsychology, psychophysics, psychology, and neural network modeling.

The book first treats conceptual, methodological, and historical issues and provides an integrated review of findings from recent studies on the neural underpinnings of consciousness. The book then turns to neurophysiological correlates of dynamic processing in vision, highlighting the temporal dimension of functional distinctions; visual masking and what it can tell us about the operation of both normal and abnormal brains; the dynamics of attentional mechanisms from electrophysiological, behavioral, and modeling perspectives; and temporal characteristics of object and feature perception. Finally, drawing on the foundations laid in earlier chapters, the book elaborates further on the dynamic relation of conscious and unconscious processes in vision. The First Half Second fills the need for an interdisciplinary dialogue on the study of the dynamic aspects of visual processing and, with its rich empirical and theoretical findings, charts promising directions for future research.

Contents:

I Conceptual Issues in Studying Conscious and Unconscious Visual Processes 9

2 Microgenesis of Perception: Conceptual, Psychophysical, and Neurobiological Aspects / Talis Bachmann 11

3 Neural Correlates and Levels of Conscious and Unconscious Vision / Bruno G. Breitmeyer, Petra Stoerig 35

II Neurophysiological Correlates of Dynamic Processing in Vision 49

4 Grasping the Past and Present: When Does Visuomotor Priming Occur? / Melvyn A. Goodale, Jonathan S. Cant, Grzegorz Kroliczak 51

5 The Cortical Processing Dynamics of Edge Detection and Scene Segmentation / H. Steven Scholte, Jacob Jolij, Victor A. F. Lamme 73

6 Consciousness Absent and Present: A Neurophysiological Exploration of Masking / Edmund T. Rolls 89

III Visual Masking and the Dynamics of Vision 109

7 Computational Models of Visual Masking / Gregory Francis, Yang Seok Cho 111

8 A Reentrant View of Visual Masking, Object Substitution, and Response Priming / James T. Enns, Alejandro Lleras, Vince Di Lollo 127

9 Dynamics of Perceptual Epochs Probed by Dissociation Phenomena in Masking / Haluk Ogmen, Bruno G. Breitmeyer, Harold E. Bedell 149

10 Backward Masking in Schizophrenia: Neuropsychological, Electrophysiological, and Functional Neuroimaging Findings / Jonathan K. Wynn, Michael F. Green 171

IV Temporal Aspects of Attention 185

11 The Operation of Attention-Millisecond by Millisecond-Over the First Half Second / Steven J. Luck 187

12 Competition for Attention in Space and Time: The First 200 ms / Mary C. Potter 207

13 Effects of Masked Stimuli on Attention and Response Tendencies as Revealed by Event-Related EEG Potentials: Possible Application to Understanding Neglect / Rolf Verleger, Piotr Jaskowski 225

V Temporal Characteristics of Feature and Object Perception 243

14 Perceptual Consequences of Timing Differences Within Parallel Feature-Processing Systems in Human Vision / Harold E. Bedell, Saumil S. Patel, Susana T.L. Chung, Haluk Ogmen 245

15 The Relationship of Visual Masking and Basic Object Recognition in Healthy Observers and Patients with Schizophrenia / Michael H. Herzog 259

16 Neural Mechanisms Underlying Temporal Aspects of Conscious Visual Perception / Wei Ji Ma, Fred Hamker, Christof Koch 275

VI The Dynamic Relation of Unconcious and Conscious Processes in Vision 295

17 Response Priming With and Without Awareness / Jens Schwarzbach, Dirk Vorberg 297

18 Visual Masking Reveals Differences Between the Nonconscious and Conscious Processing of Form and Surface Attributes / Bruno G. Breitmeyer, Haluk Ogmen 315

19 The Cognitive Neuroscience of Unconscious and Conscious Vision / Tony Ro 335.

Notes:

Includes bibliographical references (pages 361-401) and index.

Description based on print version record.

Other Format:

Print version: First half second.

ISBN:

9780262316293

0262316293

Access Restriction:

Restricted for use by site license.