| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH |
|
|
|
|||||||
|
|||||||||
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1 Center for Visual Science and Department of Brain and Cognitive Sciences, University of Rochester, Rochester, NY, USA
2 Center for Neural Science, New York University, New York, NY, USA
* To whom correspondence should be addressed. E-mail: jim{at}monkeybiz.stanford.edu.
We examined in anesthetized macaque how the responses of a striate cortical neuron to patterns inside the receptive field were altered by surrounding patterns outside it. The changes in a neuron's response brought about by a surround are immediate and transient: they arise with the same latency as the response to a stimulus within the receptive field (this argues for a source locally in striate cortex), and become less effective as soon as 27 msec later. Surround signals appeared to exert their influence through divisive interaction (normalization) with those arising in the receptive field. Surrounding patterns presented at orientations slightly oblique to the preferred orientation consistently deformed orientation tuning curves of complex (but not simple) cells, repelling the preferred orientation, but without decreasing the discriminability of the preferred grating and ones at slightly oblique orientations. By reducing responsivity and changing the tuning of complex cells locally in stimulus space, surrounding patterns reduce the correlations among responses of neurons to a particular stimulus, thus reducing the redundancy of image representation.
This article has been cited by other articles:
|
|
 |
|
  S. P. MacEvoy, T. D. Hanks, and M. A. Paradiso Macaque V1 Activity During Natural Vision: Effects of Natural Scenes and Saccades J Neurophysiol, February 1, 2008; 99(2): 460 - 472. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 C. Tailby, S. G. Solomon, N. T. Dhruv, N. J. Majaj, S. H. Sokol, and P. Lennie A New Code for Contrast in the Primate Visual Pathway J. Neurosci., April 4, 2007; 27(14): 3904 - 3909. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. Schwabe, K. Obermayer, A. Angelucci, and P. C. Bressloff The Role of Feedback in Shaping the Extra-Classical Receptive Field of Cortical Neurons: A Recurrent Network Model J. Neurosci., September 6, 2006; 26(36): 9117 - 9129. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. A. Smith, W. Bair, and J. A. Movshon Dynamics of suppression in macaque primary visual cortex. J. Neurosci., May 3, 2006; 26(18): 4826 - 4834. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. S. Webb, C. J. Tinsley, C. J. Vincent, and A. M. Derrington Spatial Distribution of Suppressive Signals Outside the Classical Receptive Field in Lateral Geniculate Nucleus J Neurophysiol, September 1, 2005; 94(3): 1789 - 1797. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 G. Chen, Y. Dan, and C.-Y. Li Stimulation of non-classical receptive field enhances orientation selectivity in the cat J. Physiol., April 1, 2005; 564(1): 233 - 243. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. C.A. Read and B. G. Cumming Understanding the Cortical Specialization for Horizontal Disparity Neural Comput., October 1, 2004; 16(10): 1983 - 2020. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. G. Solomon, J. W. Peirce, and P. Lennie The Impact of Suppressive Surrounds on Chromatic Properties of Cortical Neurons J. Neurosci., January 7, 2004; 24(1): 148 - 160. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. K. Murphy and K. D. Miller Multiplicative Gain Changes Are Induced by Excitation or Inhibition Alone J. Neurosci., November 5, 2003; 23(31): 10040 - 10051. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH |
| Visit Other APS Journals Online |
