Search Results - "Spear, PD"

Visual Response Properties of Neurons in the LGN of Normally Reared and Visually Deprived Macaque Monkeys by Levitt, Jonathan B, Schumer, Robert A, Sherman, S. Murray, Spear, Peter D, Movshon, J. Anthony

“…  1 Howard Hughes Medical Institute,   2 Center for Neural Science, and   3 Department of Psychology, New York University, New York 10003;   4 Department of…”
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Neural bases of visual deficits during aging by Spear, P D

“…Visual abilities decline during normal (non-pathological) aging. Many of these visual declines cannot be attributed to optical changes and must therefore be…”
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Effects of aging on the size, density, and number of rhesus monkey lateral geniculate neurons by Ahmad, A, Spear, P D

“…Visual abilities decline during aging, and many of these declines are due to neural changes in the retina or brain. We have begun studies of the monkey visual…”
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Critical periods for effects of monocular deprivation: differences between striate and extrastriate cortex by Jones, KR, Spear, PD, Tong, L

“…The critical period of susceptibility to effects of monocular deprivation was compared in striate cortex and the lateral suprasylvian (LS) visual area of…”
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Effects of aging on the primate visual system: spatial and temporal processing by lateral geniculate neurons in young adult and old rhesus monkeys by Spear, P D, Moore, R J, Kim, C B, Xue, J T, Tumosa, N

“…1. Visual abilities decline during normal aging, and many of these declines are due to neural changes in the retina or central visual pathways. We have begun…”
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Effects of aging on the densities, numbers, and sizes of retinal ganglion cells in rhesus monkey by Kim, Charlene B.Y., Tom, Bryony W., Spear, Peter D.

“…We used stereological procedures that yield unbiased estimates to quantify the densities, numbers, and soma sizes of retinal ganglion cells in seven young…”
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Organization of visual pathways in normal and visually deprived cats by Sherman, S M, Spear, P D

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Neural plasticity after brain damage by Spear, P D

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Functional plasticity in extrastriate visual cortex following neonatal visual cortex damage and monocular enucleation by Illig, Kurt R., Danilov, Yuri P., Ahmad, Aneeq, Kim, Charlene B.Y., Spear, Peter D.

“…Neonatal lesions of primary visual cortex (areas 17, 18 and 19; VC) in cats lead to significant changes in the organization of visual pathways, including…”
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Afferent and developmentally inherent mechanisms of form and motion processing in cat extrastriate cortex by Spear, P D

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VEP and PERG acuity in anesthetized young adult rhesus monkeys by Ver Hoeve, J N, Danilov, Y P, Kim, C B, Spear, P D

“…This study used the swept spatial-frequency method to compare retinal and cortical acuity in anesthetized young adult rhesus monkeys. Visual evoked potentials…”
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How complete is physiological compensation in extrastriate cortex after visual cortex damage in kittens ? by GUIDO, W, SPEAR, P. D, TONG, L

“…Previous studies indicate that neurons in the cat's posteromedial lateral suprasylvian (PMLS) visual area of cortex show physiological compensation after…”
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Plasticity following neonatal visual cortex damage in cats by Spear, P D

“…We have used the cat visual system as a model system to investigate how remaining areas of the brain are able to take over functions that are lost following…”
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Relationship between numbers of retinal ganglion cells and lateral geniculate neurons in the rhesus monkey by Spear, P D, Kim, C B, Ahmad, A, Tom, B W

“…Studies of the numbers of retinal ganglion cells and lateral geniculate nucleus (LGN) neurons in primates suggest that the numbers of both types of neurons may…”
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Functional compensation in the lateral suprasylvian visual area following bilateral visual cortex damage in kittens by Guido, W, Spear, P D, Tong, L

“…Previous studies have shown that functional compensation is present in the cat's posteromedial lateral suprasylvian (PMLS) area of cortex after damage to areas…”
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Monocular enucleation prevents retinal ganglion-cell loss following neonatal visual cortex damage in cats by Illig, K R, King, V R, Spear, P D

“…Damage to primary visual cortex (VC) in young cats leads to severe retrograde degeneration of the dorsal lateral geniculate nucleus (dLGN) and selective…”
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Thalamic projections to the lateral suprasylvian visual area in cats with neonatal or adult visual cortex damage by Kalil, R E, Tong, L L, Spear, P D

“…Previous transneuronal anterograde tracing studies have shown that the retino-thalamic pathway to the posteromedial lateral suprasylvian (PMLS) visual area of…”
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Responses of lateral geniculate neurons that survive long-term visual cortex damage in kittens and adult cats by Tumosa, N, McCall, MA, Guido, W, Spear, PD

“…Damage to visual cortex (areas 17-19) in kittens or adult cats produces severe retrograde degeneration of neurons in the dorsal lateral geniculate nucleus…”
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Influence of areas 17, 18, and 19 on receptive-field properties of neurons in the cat's posteromedial lateral suprasylvian visual cortex by Spear, P D

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Retinal ganglion-cell densities and soma sizes are unaffected by long-term monocular deprivation in the cat by Spear, P D, Hou, V

“…Three cats were raised with monocular deprivation for 5.2-7.2 years, and ganglion-cell densities and soma sizes were measured in their flat-mounted retinae…”
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