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same response characteristics as other smaller vessels. Selectivity of
a site to inputs can be probed as well as the functional flow, and
furthermore interactions in the functional network for process-
ing a task could well be studied in fMRI measurements although
it requires more work. The approach described here would be a
promising fMRI technique.
References
1. Wan X, Riera J, Iwata K, Takahashi M, Wak-
abayashi T, Kawashima R (2006) The neural
basis of the hemodynamic response nonlinar-
ity in human primary visual cortex: Implica-
tions for nuerovascular coupling mechanism.
Neuroimage 32: 616-625.
2. Ogawa S, Lee TM, Stepnoski R, Chen W,
Zhu X-H, Ugurbil K (2000) An approach
to probe some neural systems interaction by
functional MRI at neural time scale down to
milliseconds. Proc Natl Acad Sci USA 97:
11026-11031.
3. Sung Y, Kamba M, Ogawa S (2007) Progres-
sion of neuronal processing of visual objects.
NeuroReport 18:411-414.
4. Zhu XH, Zhang XL, Tang S, Ogawa S,
Ugurbil K, Chen W (2001) Probing fast neu-
ronal interaction in the human ocular domi-
nate columns based on fMRI BOLD response
at 7 Tesla. Proc. Intl. Soc. Mag. Reson. Med
9, 287.
5. Ogawa S, Sung YW, Kamba M, Nagaoka T
(2003) Probing the temporal dynamics of the
functional system interaction in the brain by
functional MRI. Shinkei Kenkyu no Shinpo
47: 902-908.
6. Tootell RB, Repps JB, Kwong KK, Malach R,
Born RT, Brady TJ, Rosen BR, Belliveau JW
(1995) Functional analysis of human MT and
related visual cortical areas using magnetic res-
onance imaging. J Neurosci 15: 3215-3230.
7. Schmolesky MT, Wang Y, Hanes DP, Thomp-
son
thal AG (1998) Signal timing across the
macaque visual system. J Neurophysiol 79:
3272-3278.
8. Lerner Y, Hendler T, Ben-Bashat D, Harel M,
Malach R (2001) A hierarchical axis of object
processing stages in the human visual cortex.
Cerebral Cortex 11: 287-297.
9. Grill-spector K, Kourtzi Z, Kanwisher N
(2001) The lateral occipital complex and its
role in object recognition. Vision Res 41:
1409-1411.
10. Pasupathy A, Connor CE (2002) Population
coding of shape in area V4. Nat Neurosci 5:
1332-1338.
11. Wilkinson F, James TW, Wilson HR, Gati JS,
Menon RS, Goodale MA (2000) An fMRI
study of the selective activation of human
extrastriate
form
vision
areas
by
radial
and
concentric
gratings.
Curr
Biol
10:
R836-R838.
12. Habak C, Wilkinson F, Zakher B, Wilson HR
(2004) Curvature population coding for com-
plex shapes in human vision. Vision Res 44:
2815-2823.
13. Kanwisher N, McDermott J, Chun MM
(1997) The fusiform face area: A module in
human extrastriate cortex specialized for face
perception. J Neurosci 17: 4302-4311.
14. Andrews TJ, Ewbank MP (2004) Distinct rep-
resentations for facial identity and changeable
aspects of faces in the human temporal lobe.
Neuroimage 23: 905-913.
KG,
Leutgb
S,
Schall
JD,
Leven-
