Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Leonid L. Kontsevich"'
Autor:
Lora T. Likova, Leonid L. Kontsevich, Chien-Chung Chen, Mark M. Schira, Christopher W. Tyler, Alex R. Wade
Publikováno v:
Current Medical Imaging Reviews. 1:319-329
Retinotopic mapping is a key property of organization of occipital cortex, predominantly on the medial surface but increasingly being identified in lateral and ventral regions. The retinotopic organization of early visual areas V1-3 is well establish
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78c5713b5cbd903b5a0ad961ba41ead0
https://doi.org/10.2174/157340505774574772
https://doi.org/10.2174/157340505774574772
Autor:
Leonid L. Kontsevich, Alex R. Wade, Heidi A. Baseler, Brian A. Wandell, Lora T. Likova, Christopher W. Tyler
Publikováno v:
NeuroImage. 24:306-314
Symmetry along one or more axes is a key property of objects and biological organisms. We report on a bilateral visual region of occipital cortex that responds strongly to the presence of multiple symmetries in the viewed image. The stimuli consisted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::426bcc6de80d58ce339460369f9a21b0
https://doi.org/10.1016/j.neuroimage.2004.09.018
https://doi.org/10.1016/j.neuroimage.2004.09.018
Publikováno v:
Vision Research. 40:3245-3255
It has been proposed [Hubel & Livingstone (1987) Journal of Neuroscience, 7, 3378–3415] that stereopsis is mediated solely by magnocellular pathway in primates. This hypothesis was evaluated for humans in psychophysical experiments with dynamic ran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fb0c4aa079342e73d3990e416d4820e
https://doi.org/10.1016/s0042-6989(00)00159-0
https://doi.org/10.1016/s0042-6989(00)00159-0
Publikováno v:
Vision Research. 39(10):1869-1880
The existence of analytic threshold nonlinearities was probed with 2AFC incremental threshold functions for both local and extended test patterns on stationary matched pedestals of the same and opposite sign. In contrast to the facilitation effect wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91e9452a1e59dbfd8154a8cfdd345a9f
Publikováno v:
Perception. 28:623-626
A 120-frame movie, which can be downloaded from specified web sites, allows an observer to see the qualitative form of his or her temporal modulation transfer function. Results collected from two of the authors are presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4da05bb19189f39fea9f8576110e055
https://doi.org/10.1068/p2766
https://doi.org/10.1068/p2766
Publikováno v:
Vision Research. 38(20):3025-3029
Localization accuracy for a wide Gaussian bar (sigma 1°) was essentially invariant with sampling density over a wide range. Luminance contrast, on the contrary, had a profound effect on localization accuracy. This difference suggests that the positi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afcb689b88b648f97588e6da490e048b
Autor:
Leonid L. Kontsevich
Publikováno v:
Proceedings of the Royal Society of London. Series B: Biological Sciences. 265:1615-1621
This study presents three findings concerning the mechanisms of depth perception. First, the shape of the three-dimensional percept evoked by two-frame motion is defined solely by the rotation component around an axis in the frontoparallel plane; the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba4e1356c03f82db49ed673f8c6ad054
https://doi.org/10.1098/rspb.1998.0479
https://doi.org/10.1098/rspb.1998.0479
Autor:
Leonid L. Kontsevich, Christopher W. Tyler, Bharathi Jagadeesh, David Ferster, Heidi Sue Wheat
Publikováno v:
Journal of Neurophysiology. 78:2772-2789
Jagadeesh, Bharathi, Heidi Sue Wheat, Leonid L. Kontsevich, Christopher W. Tyler, and David Ferster. Direction selectivity of synaptic potentials in simple cells of the cat visual cortex. J. Neurophysiol. 78: 2772–2789, 1997. The direction selectiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7ee0799e47345e04c78cf2d28fbd2f0
https://doi.org/10.1152/jn.1997.78.5.2772
https://doi.org/10.1152/jn.1997.78.5.2772
Autor:
Leonid L. Kontsevich
Publikováno v:
Vision Research. 35:2785-2793
Recently, Jagadeesh, Wheat and Ferster [(1993) Science, 262, 1901–1904] presented intracellular recordings from direction-selective simple cells in primary visual cortex and provided an analysis to support the idea that synaptic summation in simple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff8234b303b06846928df4e8966ee084
https://doi.org/10.1016/0042-6989(95)00043-y
https://doi.org/10.1016/0042-6989(95)00043-y
Publikováno v:
Perception. 24:127-153
Consideration of the range of phenomena from studies of human stereopsis suggests that a five-stage model is required to provide a complete account of the processes involved, within which any stereoattention mechanism must operate. The information fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cc38cd5b15b884ac82b85dbe6aadc17
https://doi.org/10.1068/p240127
https://doi.org/10.1068/p240127