Results 121 to 130 of about 66,629 (168)
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Synaptogenesis in Monkey Somatosensory Cortex
Cerebral Cortex, 1991The time course and rate of synaptogenesis were studied in the somatosensory cortex (Brodmann's areas 1 and 3b) of 27 rhesus monkeys ranging in age from embryonic day 41 to 20 years. Two to four vertical probes, each consisting of a series of overlapping electron micrographs and extending from the pial surface to the interface of the cortex with the ...
Pasko Rakic, Nada Zecevic
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The somatosensory cortex [PDF]
, 1996 Mammals vary in the number of cortical areas involved in processing somatosensory information. Most mammals appear to have areas S1, S2, and PV, as well as strip-like somatosensory areas along the rostral and caudal borders of S1. In monkeys and other higher primates, cortex caudal to S1 is differentiated into areas 1 and 2, each also representing ...
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Somatotopic astrocytic activity in the somatosensory cortex
Glia, 2013AbstractAstrocytes play a crucial role in maintaining neuronal function and monitoring their activity. According to neuronal activity maps, the body is represented topographically in the somatosensory cortex. In rats, neighboring cortical areas receive forelimb (FL) and hindlimb (HL) sensory inputs. Whether astrocytic activity is also restricted to the
Bruno Weber +3 more
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Journal of Comparative Neurology, 1991
AbstractMultiunit microelectrode recording techniques were used to delineate the somatotopic organization of the secondary somatosensory cortex (SII) of the neonatal pig. Barbiturate anesthetized piglets ranging in age from 7 days preterm to 2 months postpartum were used.
Sandra L. Craner, Richard H. Ray
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AbstractMultiunit microelectrode recording techniques were used to delineate the somatotopic organization of the secondary somatosensory cortex (SII) of the neonatal pig. Barbiturate anesthetized piglets ranging in age from 7 days preterm to 2 months postpartum were used.
Sandra L. Craner, Richard H. Ray
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Interhemispheric connections of the somatosensory cortex in the rabbit [PDF]
Journal of Comparative Neurology, 1987 AbstractCorpus callosal connections of somatosensory cortex were studied in rabbits by combining anatomical tracing and electrophysiological mapping in the same animals. The results show that callosal connections are unevenly distributed in SI and SII. In SI, the representations of all body surfaces caudal to the neck and midline structures of the head
Harry J. Gould +2 more
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The somatosensory cortex in multiple system atrophy
Journal of the Neurological Sciences, 2008In multiple system atrophy (MSA), it has been accepted that the motor-related cortical area may degenerate. However, there have been few investigations of the postcentral cortex of the somatosensory area. For this reason, we investigated the effects of MSA on both the precentral and the postcentral cortex and were able to demonstrate degenerative ...
Toshio Shimizu +4 more
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Organization of primary somatosensory cortex in the cat
Journal of Neurophysiology, 19801. Multi-unit recordings were made from SI cortex of barbiturte-anesthetized cats. In four cats, multiple vertical penetrations were made at closely spaced intervals. In 12 cats, long surface-parallel penetrations were made in the rostrocaudal or the lateromedial directions with observations taken every 100 micron. 2.
Douglas D. Rasmusson +2 more
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Journal of Comparative Neurology, 1991
AbstractThe cerebral cortex of adult mammals contains several somatotopic representations of the body surface. Although the organization of the various somatosensory cortices of numerous species of adult animals has been elucidated, data on the somatosensory representations of fetal and neonatal animals are limited. As part of an investigation into the
S L, Craner, R H, Ray
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AbstractThe cerebral cortex of adult mammals contains several somatotopic representations of the body surface. Although the organization of the various somatosensory cortices of numerous species of adult animals has been elucidated, data on the somatosensory representations of fetal and neonatal animals are limited. As part of an investigation into the
S L, Craner, R H, Ray
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Proprioceptive Influences on Somatosensory and Motor Cortex
1979Publisher Summary This chapter describes the recently observed features of the peripheral activation of identified corticocortical and thalamocortical neurons that project to the motor cortex. Two input pathways to the motor cortex were investigated in cats, one corticocortical and the other thalamocortical.
H. Asanuma, P. Zarzecki
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Plasticity and the Somatosensory Cerebral Cortex
1991If the representation of the vibrissae (Chap. 3) is placed aside, there are six basic types of experiments that are related to the study of plasticity in the somatosensory cortex of adult and developing mammals. The first approach has resulted from the use of anaesthetic agents as part of the standard experimental protocol for recording in the central ...
Peter J. Snow, Peter Wilson
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