JN Ad Instruments
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
 QUICK SEARCH:   [advanced]


     


J Neurophysiol (January 19, 2005). doi:10.1152/jn.00934.2004
This Article
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
93/6/3453    most recent
00934.2004v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Web of Science (11)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Large, M.-E.
Right arrow Articles by Vilis, T.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Large, M.-E.
Right arrow Articles by Vilis, T.
Submitted on September 7, 2004
Accepted on January 11, 2005

Perceptual continuity and the emergence of perceptual persistence in the ventral visual pathway

Mary-Ellen Large1*, Adrian Aldcroft2, and Tutis Vilis2

1 Psychology, UWO, London, Ontario, Canada
2 Physio & Pharm, UWO, London, Ontario, Canada

* To whom correspondence should be addressed. E-mail: mlarge2{at}uwo.ca.

Perceptual continuity is an important aspect of our experience of the visual world. In this study, we focus on an example of perceptual continuity involving the maintenance of figure-ground segregation despite the removal of binding cues that initiated the segregation. Fragmented line drawings of objects were superimposed on a background of randomly oriented lines. Global forms could be discriminated from the background based on differences in motion or differences in colour/brightness. Furthermore, perception of a global form persisted after the binding cue had been removed. A comparison between the persistence of forms constructed from motion or colour demonstrated that both forms produced persistence after the object defining cues were removed. Functional imaging showed a gradual increase in the persistence of brain activity in the lower visual areas (V1, V2, VP), which reached significance in V4v and peaked in LO. There was no difference in the location of persistence for colour- or motion-defined forms. These results suggest that the retention of a global percept is an emerging property of the ventral visual processing stream and the maintenance of grouped visual elements is independent of cue type. We postulated that perceptual persistence depends on a system of perceptual memory reflecting the state of perceptual organization.




This article has been cited by other articles:


Home page
J. Neurosci.Home page
M. G. Philiastides and P. Sajda
EEG-Informed fMRI Reveals Spatiotemporal Characteristics of Perceptual Decision Making
J. Neurosci., November 28, 2007; 27(48): 13082 - 13091.
[Abstract] [Full Text] [PDF]


Home page
J. Neurophysiol.Home page
G. Kroliczak, C. Cavina-Pratesi, D. A. Goodman, and J. C. Culham
What Does the Brain Do When You Fake It? An fMRI Study of Pantomimed and Real Grasping
J Neurophysiol, March 1, 2007; 97(3): 2410 - 2422.
[Abstract] [Full Text] [PDF]


Home page
J. Neurosci.Home page
L. G. Appelbaum, A. R. Wade, V. Y. Vildavski, M. W. Pettet, and A. M. Norcia
Cue-invariant networks for figure and background processing in human visual cortex.
J. Neurosci., November 8, 2006; 26(45): 11695 - 11708.
[Abstract] [Full Text] [PDF]




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH
Visit Other APS Journals Online
Copyright © 2005 by the The American Physiological Society.