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Page 1
Whither the hypercolumn?
Ts'o DY, Zarella M, Burkitt G. Ts'o DY, et al. J Physiol. 2009 Jun 15;587(Pt 12):2791-805. doi: 10.1113/jphysiol.2009.171082. J Physiol. 2009. PMID: 19525564 Free PMC article. Review.
In the present work, we have applied the hypercolumn concept to the functional organization of the second visual area, V2. We found it important to separate out the original definition of the hypercolumn from other associated observations and concepts, not all of wh …
In the present work, we have applied the hypercolumn concept to the functional organization of the second visual area, V2. We found i …
A spherical model for orientation and spatial-frequency tuning in a cortical hypercolumn.
Bressloff PC, Cowan JD. Bressloff PC, et al. Philos Trans R Soc Lond B Biol Sci. 2003 Oct 29;358(1438):1643-67. doi: 10.1098/rstb.2002.1109. Philos Trans R Soc Lond B Biol Sci. 2003. PMID: 14561324 Free PMC article. Review.
Given the existence in V1 of dual maps for these features, both organized around orientation pinwheels, we constructed a model of a hypercolumn in which orientation and spatial-frequency preferences are represented by the two angular coordinates of a sphere. ...
Given the existence in V1 of dual maps for these features, both organized around orientation pinwheels, we constructed a model of a hyper …
Neurocomputational bases of object and face recognition.
Biederman I, Kalocsai P. Biederman I, et al. Philos Trans R Soc Lond B Biol Sci. 1997 Aug 29;352(1358):1203-19. doi: 10.1098/rstb.1997.0103. Philos Trans R Soc Lond B Biol Sci. 1997. PMID: 9304687 Free PMC article. Review.
Because faces have the same parts in approximately the same relations, individuation of faces typically requires specification of the metric variation in a holistic and integral representation of the facial surface. The direct mapping of a hypercolumn-like pattern of activ …
Because faces have the same parts in approximately the same relations, individuation of faces typically requires specification of the metric …
The functional geometry of local and horizontal connections in a model of V1.
Bressloff PC, Cowan JD. Bressloff PC, et al. J Physiol Paris. 2003 Mar-May;97(2-3):221-36. doi: 10.1016/j.jphysparis.2003.09.017. J Physiol Paris. 2003. PMID: 14766143 Review.
A mathematical model of interacting hypercolumns in primary visual cortex (V1) is presented that incorporates details concerning the geometry of local and long-range horizontal connections. Each hypercolumn is modeled as a network of interacting excitatory and inhibitory n …
A mathematical model of interacting hypercolumns in primary visual cortex (V1) is presented that incorporates details concerning the geometr …
Geometric visual hallucinations, Euclidean symmetry and the functional architecture of striate cortex.
Bressloff PC, Cowan JD, Golubitsky M, Thomas PJ, Wiener MC. Bressloff PC, et al. Philos Trans R Soc Lond B Biol Sci. 2001 Mar 29;356(1407):299-330. doi: 10.1098/rstb.2000.0769. Philos Trans R Soc Lond B Biol Sci. 2001. PMID: 11316482 Free PMC article. Review.
In the first part of the paper we show that form constants, when viewed in V1 coordinates, essentially correspond to combinations of plane waves, the wavelengths of which are integral multiples of the width of a human Hubel-Wiesel hypercolumn, ca. 1.33-2 mm. We next introd …
In the first part of the paper we show that form constants, when viewed in V1 coordinates, essentially correspond to combinations of plane w …
[Image processing in the primary visual cortex].
Sáez JA, Paniagua J, Domínguez I, Ferrer JM. Sáez JA, et al. Rev Neurol. 1998 Mar;26(151):439-44. Rev Neurol. 1998. PMID: 9585959 Review. Spanish.
The cortical neurones which analyze the characteristics of the image situated in a precise zone of the visual field are themselves organized into a basic functional unit known as a hypercolumn. Within each hypercolumn there are various columnar cell systems with rec …
The cortical neurones which analyze the characteristics of the image situated in a precise zone of the visual field are themselves organized …