English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Seeing Invisible Motion: A Human fMRI Study

Moutoussis, K., & Zeki, S. (2006). Seeing Invisible Motion: A Human fMRI Study. Current Biology, 16(6), 574-579. doi:10.1016/j.cub.2006.01.062.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Moutoussis, K1, 2, Author              
Zeki, S, Author
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

Content

show
hide
Free keywords: -
 Abstract: A common view about visual consciousness is that it could arise when and where activity reaches some higher level of processing along the cortical hierarchy. Reports showing that activity in striate cortex can be dissociated from awareness 1, 2, whereas the latter modulates activity in higher areas 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, point in this direction. In the specific case of visual motion, a central, “perceptual” role has been assigned to area V5: several human 5, 6, 7, 8, 9, 10, 11 and monkey 12, 13, 14, 15, 16 studies have shown V5 activity to correlate with the motion percept. Here we show that activity in this and other higher cortical areas can be also dissociated from perception and follow the physical stimulus instead. The motion information in a peripheral grating modulated fMRI responses, despite being invisible to human volunteers: under crowding conditions [17], areas V3A, V5, and parietal cortex still showed increased activity when the grating was moving compared to when it was flickering. We conclude that stimulus-specific activation of higher cortical areas does not necessarily result in awareness of the underlying stimulus.

Details

show
hide
Language(s):
 Dates: 2006-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.cub.2006.01.062
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Current Biology
  Other : Curr. Biol.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: London, UK : Cell Press
Pages: - Volume / Issue: 16 (6) Sequence Number: - Start / End Page: 574 - 579 Identifier: ISSN: 0960-9822
CoNE: https://pure.mpg.de/cone/journals/resource/954925579107