English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Scene perception: inferior temporal cortex neurons encode the positions of different objects in the scene

Aggelopoulos, N. (2005). Scene perception: inferior temporal cortex neurons encode the positions of different objects in the scene. European Journal of Neuroscience, 22(11), 2903-2916. doi:10.1111/j.1460-9568.2005.04487.x.

Item is

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Aggelopoulos, NC1, Author           
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              

Content

show
hide
Free keywords: -
 Abstract: Inferior temporal cortex (IT) neurons have reduced receptive field sizes in complex natural scenes. This facilitates the read-out of information about individual objects from IT, but raises the question of whether more than the single object present at the fovea is represented by the firing of IT neurons, as would be important for whole scene perception in which several objects may be located without eye movements. Recordings from IT neurons with five simultaneously presented objects, each subtending 7 degrees , with one object at the fovea and the other four centred 10 degrees eccentrically in the parafovea, showed that although 38 IT neurons had their best response to an effective stimulus at the fovea, eight IT neurons had their best response to an object when it was located in one or more of the parafoveal positions. Moreover, of 54 neurons tested for asymmetric parafoveal receptive fields, 35 (65) had significantly different responses for different parafoveal positions. The asymmetry was partly related to competition within the receptive fields, as only 21 of the neurons had significant asymmetries when tested with just one object present located at the same parafoveal positions. The findings thus show that some evidence is conveyed by a population of IT neurons about the relative positions of several simultaneously presented objects in a scene extending well into the parafovea during a single fixation, and this is likely to be important in whole scene perception with multiple objects, including specifying the relative positions of different objects in a scene.

Details

show
hide
Language(s):
 Dates: 2005-12
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: European Journal of Neuroscience
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 22 (11) Sequence Number: - Start / End Page: 2903 - 2916 Identifier: -