Survival of pattern vision after removal of striate cortex in the adult cat

1971 ◽  
Vol 143 (3) ◽  
pp. 341-369 ◽  
Author(s):  
Robert W. Doty
Keyword(s):  
Striate Cortex ◽  
Pattern Vision ◽  
Adult Cat

Effect of partial sensory deprivation on monoaminergic neuromodulators in striate cortex of adult cat

Neuroscience ◽  
2000 ◽  
Vol 101 (4) ◽  
pp. 863-868 ◽  
Author(s):  
Y Qu ◽  
U.T Eysel ◽  
F Vandesande ◽  
L Arckens
Keyword(s):  
Striate Cortex ◽  
Sensory Deprivation ◽  
Adult Cat

Plasticity of neuronal response properties in adult cat striate cortex

1998 ◽  
Vol 15 (1) ◽  
pp. 177-196 ◽  
Author(s):  
J. MCLEAN ◽  
L.A. PALMER
Keyword(s):  
Visual Cortex ◽  
Striate Cortex ◽  
Direction Selectivity ◽  
Orientation Tuning ◽  
Tuning Curves ◽  
Spatial Phase ◽  
Associative Conditioning ◽  
Phase Tuning ◽  
Adult Cat ◽  
Cat Striate Cortex

We have utilized an associative conditioning paradigm to induce changes in the receptive field (RF) properties of neurons in the adult cat striate cortex. During conditioning, the presentation of particular visual stimuli were repeatedly paired with the iontophoretic application of either GABA or glutamate to control postsynaptic firing rates. Similar paradigms have been used in kitten visual cortex to alter RF properties (Fregnac et al., 1988, 1992; Greuel et al., 1988; Shulz & Fregnac, 1992). Roughly half of the cells that were subjected to conditioning with stimuli differing in orientation were found to have orientation tuning curves that were significantly altered. In general, the modification in orientation tuning was not accompanied by a shift in preferred orientation, but rather, responsiveness to stimuli at or near the positively reinforced orientation was increased relative to controls, and responsiveness to stimuli at or near the negatively reinforced orientation was decreased relative to controls. A similar proportion of cells that were subjected to conditioning with stimuli differing in spatial phase were found to have spatial-phase tuning curves that were significantly modified. Conditioning stimuli typically differed by 90 deg in spatial phase, but modifications in spatial-phase angle were generally 30–40 deg. An interesting phenomenon we encountered was that during conditioning, cells often developed a modulated response to counterphased grating stimuli presented at the null spatial phase. We present an example of a simple cell for which the shift in preferred spatial phase measured with counterphased grating stimuli was comparable to the shift in spatial phase computed from a one-dimensional Gabor fit of the space-time RF profile. One of ten cells tested had a significant change in direction selectivity following associative conditioning. The specific and predictable modifications of RF properties induced by our associative conditioning procedure demonstrate the ability of mature visual cortical neurons to alter their integrative properties. Our results lend further support to models of synaptic plasticity where temporal correlations between presynaptic and postsynaptic activity levels control the efficiency of transmission at existing synapses, and to the idea that the mature visual cortex is, in some sense, dynamically organized.

Three dimensional morphometric analyses of axon terminals early changes induced by methylmercury intoxication in the adult cat striate cortex

2008 ◽  
Vol 1244 ◽  
pp. 155-163 ◽  
Author(s):  
Ricardo Bezerra de Oliveira ◽  
Wallace Gomes Leal ◽  
Domingos Luis Wanderley Picanço-Diniz ◽  
João Bento Torres Neto ◽  
Nara Lins ◽  
...  
Keyword(s):  
Striate Cortex ◽  
Three Dimensional ◽  
Axon Terminals ◽  
Morphometric Analyses ◽  
Adult Cat ◽  
Methylmercury Intoxication ◽  
Cat Striate Cortex

Axonal sprouting accompanies functional reorganization in adult cat striate cortex

Nature ◽  
1994 ◽  
Vol 368 (6473) ◽  
pp. 737-740 ◽  
Author(s):  
Corinna Darian-Smith ◽  
Charles D. Gilbert
Keyword(s):  
Striate Cortex ◽  
Axonal Sprouting ◽  
Functional Reorganization ◽  
Adult Cat ◽  
Cat Striate Cortex

Recovery of pattern vision following serial lesions of striate cortex in rats

1975 ◽  
Vol 88 (2) ◽  
pp. 353-356 ◽  
Author(s):  
Denise Dru ◽  
Judith Boas Walker ◽  
James Paul Walker
Keyword(s):  
Striate Cortex ◽  
Pattern Vision

Tetraploidy and the striate cortex

Pathology ◽  
1977 ◽  
Vol 9 (2) ◽  
pp. 99-104 ◽  
Author(s):  
C.L. Scholtz
Keyword(s):  
Striate Cortex
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