Two hierarchically organized neural systems for object information in human visual cortex

被引:356
作者
Konen, Christina S. [1 ,2 ]
Kastner, Sabine [1 ,3 ]
机构
[1] Princeton Univ, Dept Psychol, Princeton, NJ 08540 USA
[2] Princeton Univ, Ctr Study Brain Mind & Behav, Princeton, NJ 08540 USA
[3] Princeton Univ, Princeton Neurosci Inst, Princeton, NJ 08540 USA
关键词
D O I
10.1038/nn2036
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The primate visual system is broadly organized into two segregated processing pathways, a ventral stream for object vision and a dorsal stream for space vision. Here, evidence from functional brain imaging in humans demonstrates that object representations are not confined to the ventral pathway, but can also be found in several areas along the dorsal pathway. In both streams, areas at intermediate processing stages in extrastriate cortex (V4, V3A, MT and V7) showed object-selective but viewpoint- and size-specific responses. In contrast, higher-order areas in lateral occipital and posterior parietal cortex (LOC, IPS1 and IPS2) responded selectively to objects independent of image transformations. Contrary to the two-pathways hypothesis, our findings indicate that basic object information related to shape, size and viewpoint may be represented similarly in two parallel and hierarchically organized neural systems in the ventral and dorsal visual pathways.
引用
收藏
页码:224 / 231
页数:8
相关论文
共 50 条
[2]   View-invariant representations of familiar objects by neurons in the inferior temporal visual cortex [J].
Booth, MCA ;
Rolls, ET .
CEREBRAL CORTEX, 1998, 8 (06) :510-523
[3]   The psychophysics toolbox [J].
Brainard, DH .
SPATIAL VISION, 1997, 10 (04) :433-436
[4]   Representation of manipulable man-made objects in the dorsal stream [J].
Chao, LL ;
Martin, A .
NEUROIMAGE, 2000, 12 (04) :478-484
[5]   Space and attention in parietal cortex [J].
Colby, CL ;
Goldberg, ME .
ANNUAL REVIEW OF NEUROSCIENCE, 1999, 22 :319-349
[6]   Frontoparietal cortical networks for directing attention and the eye to visual locations: Identical, independent, or overlapping neural systems? [J].
Corbetta, M .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1998, 95 (03) :831-838
[7]   Evidence for visuomotor priming effect [J].
Craighero, L ;
Fadiga, L ;
Umilta, CA ;
Rizzolatti, G .
NEUROREPORT, 1996, 8 (01) :347-349
[8]   The role of parietal cortex in visuomotor control: What have we learned from neuroimaging? [J].
Culham, Jody C. ;
Cavina-Pratesi, Cristiana ;
Singhal, Anthony .
NEUROPSYCHOLOGIA, 2006, 44 (13) :2668-2684
[9]   CONTOUR, COLOR AND SHAPE-ANALYSIS BEYOND THE STRIATE CORTEX [J].
DESIMONE, R ;
SCHEIN, SJ ;
MORAN, J ;
UNGERLEIDER, LG .
VISION RESEARCH, 1985, 25 (03) :441-452
[10]  
DESIMONE R, 1984, J NEUROSCI, V4, P2051