Chapter

Contextual Shape Processing in Human Visual Cortex: Beginning to Fill-In the Blanks

Janine Mendola

in Filling-In

Published in print April 2003 | ISBN: 9780195140132
Published online May 2009 | e-ISBN: 9780199865307 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195140132.003.0003
 Contextual Shape Processing in Human Visual Cortex: Beginning to Fill-In the Blanks

Show Summary Details

Preview

This chapter begins with a brief discussion of contextual effects in the physiological responses of single neurons in cats and primates. It reviews the physiological investigations of contextual visual phenomena in human visual cortex made possible by noninvasive functional neuroimaging techniques. It addresses two important topics concerning filling-in and related contextual effects. First, it asks the question: What are the contributions of feedforward, feedback, and lateral anatomical connections? Second, it asks: How large is the neural network that contributes to particular classes of contextual effects? Finally, the chapter discusses how single-neuron properties can be related to population indices and how the organization of the primate visual system may impact thoughts about filling-in.

Keywords: filling-in; single neurons; visual system; cats; primates; visual cortex; contextual effects

Chapter.  9363 words.  Illustrated.

Subjects: Neuroscience

Full text: subscription required

How to subscribe Recommend to my Librarian

Buy this work at Oxford University Press »

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.