Skip Navigation

This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
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 ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (26)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Kourtzi, Z.
Right arrow Articles by Bülthoff, H. H.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Kourtzi, Z.
Right arrow Articles by Bülthoff, H. H.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Cerebral Cortex, Vol. 13, No. 9, 911-920, September 2003
© 2003 Oxford University Press

Representation of the Perceived 3-D Object Shape in the Human Lateral Occipital Complex

Zoe Kourtzi, Michael Erb1, Wolfgang Grodd1 and Heinrich H. Bülthoff

Max Planck Institute for Biological Cybernetics and , 1 University Clinics, Tübingen, Germany

We used human functional magnetic resonance imaging (fMRI) to test whether the human lateral occipital complex (LOC), an area known to be involved in the analysis of visual shape, represents the perceived 3-D shape of objects or simply their 2-D contours. We employed an fMRI adaptation paradigm, in which repeated presentation of a stimulus results in decreased responses compared to responses to different stimuli. We found adaptation in the LOC for images of objects with the same perceived 3-D shape structure but different 2-D contours that resulted from small rotations of the objects in the frontal plane or in depth. However, no adaptation was observed in the LOC for images of objects that had the same 2-D contours but differed in their perceived 3-D shape; namely, 2-D silhouettes versus 3-D shaded images of objects, or convex versus concave objects. Differences in the fMRI adaptation responses across subregions in the LOC suggest that different neural populations in the LOC may mediate different mechanisms for the processing of object features.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Cereb CortexHome page
J. Schultz, L. Chuang, and Q. C. Vuong
A Dynamic Object-Processing Network: Metric Shape Discrimination of Dynamic Objects by Activation of Occipitotemporal, Parietal, and Frontal Cortices
Cereb Cortex, June 1, 2008; 18(6): 1302 - 1313.
[Abstract] [Full Text] [PDF]

Home page
 J. Cogn. Neurosci.Home page
Y. Jiang, C. N. Boehler, N. Nonnig, E. Duzel, J.-M. Hopf, H.-J. Heinze, and M. A. Schoenfeld
Binding 3-d object perception in the human visual cortex.
J. Cogn. Neurosci., April 1, 2008; 20(4): 553 - 562.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
S. S. Georgieva, J. T. Todd, R. Peeters, and G. A. Orban
The Extraction of 3D Shape from Texture and Shading in the Human Brain
Cereb Cortex, February 14, 2008; (2008) bhn002v1.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
G. P. Caplovitz and P. U. Tse
V3A Processes Contour Curvature as a Trackable Feature for the Perception of Rotational Motion
Cereb Cortex, May 1, 2007; 17(5): 1179 - 1189.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
S. Weigelt, Z. Kourtzi, A. Kohler, W. Singer, and L. Muckli
The Cortical Representation of Objects Rotating in Depth
J. Neurosci., April 4, 2007; 27(14): 3864 - 3874.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
C. Chandrasekaran, V. Canon, J. C. Dahmen, Z. Kourtzi, and A. E. Welchman
Neural Correlates of Disparity-Defined Shape Discrimination in the Human Brain
J Neurophysiol, February 1, 2007; 97(2): 1553 - 1565.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
S. Gilaie-Dotan and R. Malach
Sub-exemplar Shape Tuning in Human Face-Related Areas
Cereb Cortex, February 1, 2007; 17(2): 325 - 338.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
P. E. Downing, A. J. Wiggett, and M. V. Peelen
Functional Magnetic Resonance Imaging Investigation of Overlapping Lateral Occipitotemporal Activations Using Multi-Voxel Pattern Analysis
J. Neurosci., January 3, 2007; 27(1): 226 - 233.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
J. Larsson and D. J. Heeger
Two Retinotopic Visual Areas in Human Lateral Occipital Cortex
J. Neurosci., December 20, 2006; 26(51): 13128 - 13142.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
T. Wolbers, E. D. Schoell, R. Verleger, S. Kraft, A. McNamara, P. Jaskowski, and C. Buchel
Changes in Connectivity Profiles as a Mechanism for Strategic Control over Interfering Subliminal Information
Cereb Cortex, June 1, 2006; 16(6): 857 - 864.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
S. O. Murray, C. A. Olman, and D. Kersten
Spatially Specific fMRI Repetition Effects in Human Visual Cortex
J Neurophysiol, April 1, 2006; 95(4): 2439 - 2445.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
M. W. Self and S. Zeki
The Integration of Colour and Motion by the Human Visual Brain
Cereb Cortex, August 1, 2005; 15(8): 1270 - 1279.
[Abstract] [Full Text] [PDF]


Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.