TY - JOUR
T1 - Similar cortical correlates underlie visual object identification and orientation judgement
AU - Altmann, CF
AU - Grodd, W
AU - Kourtzi, Zoe
AU - Buelthoff, HH
AU - Karnath, HO
PY - 2005/1/1
Y1 - 2005/1/1
N2 - Visual object perception has been suggested to follow two different routes in the human brain: a ventral, view-invariant occipital-temporal route processes object identity, whereas a dorsal, view-dependent occipital-parietal route processes spatial properties of an object. Using fMRI, we addressed the question whether these routes are exclusively involved in either object recognition or spatial representation. We presented subjects with images of natural objects and involved them either in object identification or object orientation judgment task. For both tasks, we observed activation in ventro-temporal as well as parietal areas bilaterally, with significantly stronger responses for the orientation judgment in both ventro-temporal as well as parietal areas. Our findings suggest that object identification and orientation judgment do not follow strictly separable cortical pathways, but rather involve both the dorsal and the ventral stream.
AB - Visual object perception has been suggested to follow two different routes in the human brain: a ventral, view-invariant occipital-temporal route processes object identity, whereas a dorsal, view-dependent occipital-parietal route processes spatial properties of an object. Using fMRI, we addressed the question whether these routes are exclusively involved in either object recognition or spatial representation. We presented subjects with images of natural objects and involved them either in object identification or object orientation judgment task. For both tasks, we observed activation in ventro-temporal as well as parietal areas bilaterally, with significantly stronger responses for the orientation judgment in both ventro-temporal as well as parietal areas. Our findings suggest that object identification and orientation judgment do not follow strictly separable cortical pathways, but rather involve both the dorsal and the ventral stream.
U2 - 10.1016/j.neuropsychologia.2005.03.015
DO - 10.1016/j.neuropsychologia.2005.03.015
M3 - Article
C2 - 16243054
SN - 1873-3514
VL - 43
SP - 2101
EP - 2108
JO - Neuropsychologia
JF - Neuropsychologia
ER -