Functional Independence of Layer IV Barrels in Rodent Somatosensory Cortex
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چکیده
منابع مشابه
Functional independence of layer IV barrels in rodent somatosensory cortex.
Layer IV of rodent primary somatosensory cortex is characterized by an array of whisker-related groups of neurons, known as "barrels." Neurons within each barrel respond best to a particular whisker on the contralateral face, and, on deflection of adjacent whiskers, display relatively weak excitation followed by strong inhibition. A prominent hypothesis for the processing of vibrissal informati...
متن کاملFunctional independence of layer IV barrels.
Our aim was to investigate the patterns of functional inputs and outputs from individual barrels in the mouse somatosensory cortex, and to test the hypothesis that individual barrels in layer IV are functionally independent of direct inputs from neighboring barrels. In a mouse in vitro slice preparation of the barrel cortex, we recorded voltage-sensitive dye signals evoked in response to micros...
متن کاملNeuronal response properties of somatosensory cortex (layer IV) are modulated following experience dependent plasticity in c-fiber depleted rats
Previous studies have shown that the receptive field properties, spontaneous activity and spatio-temporal interactions of low-threshold mechanical somatosensory cells in the barrel cortex are influenced by C-fibers. In this study, we examined the effect of C-fiber depletion on response properties of barrel cortex neurons following experience dependent plasticity. Methods: In this study, exte...
متن کاملFunctional connectivity in layer IV local excitatory circuits of rat somatosensory cortex . by Anna
243 words Figures: 8 Tables: 4 References: 46 Correspondence should be addressed to Dr. C. Stricker, Division of Neuroscience, JCSMR-ANU, GPO Box 334, Canberra, ACT 0200, Australia. Phone: (#61) 2 6125 4183; FAX (#61) 2 6125 2687; E-mail: [email protected] Articles in PresS. J Neurophysiol (June 16, 2004). 10.1152/jn.01262.2003 Copyright © 2004 by the American Physiological Society....
متن کاملFunctional connectivity in layer IV local excitatory circuits of rat somatosensory cortex.
There are two types of excitatory neurons within layer IV of rat somatosensory cortex: star pyramidal (SP) and spiny stellate cells (SS). We examined the intrinsic properties and connectivity between these neurons to determine differences in function. Eighty-four whole cell recordings of pairs of neurons were examined in slices of rat barrel cortex at 36 +/- 1 degrees C. Only minimal difference...
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ژورنال
عنوان ژورنال: Journal of Neurophysiology
سال: 1999
ISSN: 0022-3077,1522-1598
DOI: 10.1152/jn.1999.82.3.1311