Results 141 to 150 of about 12,500 (179)

Barrel cortex and whisker-mediated behaviors

Current Opinion in Neurobiology, 2007
Neural networks of the rodent barrel cortex are particularly tractable for developing a quantitative understanding of response transformations in a cortical column. A column in barrel cortex consists of approximately 10 compartments. Two thalamic input pathways, a sensory lemniscal one and sensorimotor paralemniscal one, are transformed to ...
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Chronic Suppression of Activity in Barrel Field Cortex Downregulates Sensory Responses in Contralateral Barrel Field Cortex

Journal of Neurophysiology, 2005
Numerous lines of evidence indicate that neural information is exchanged between the cerebral hemispheres via the corpus callosum. Unilateral ablation lesions of barrel field cortex (BFC) in adult rats induce strong suppression of background and evoked activity in the contralateral barrel cortex and significantly delay the onset of experience-dependent
Lu, Li, V, Rema, Ford F, Ebner
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Local axonal trajectories in mouse barrel cortex

Experimental Brain Research, 1990
Quantitative studies were made of the distribution of labeled intracortical axons after focal injections of horseradish peroxidase (HRP) into mouse barrel cortex, in vitro. The pattern of labeled fibers was compared to that of labeled cell bodies with respect to the barrel map in layer IV.
K L, Bernardo, J S, McCasland, T A, Woolsey   +2 more
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Growth of Thalamic Afferents into Mouse Barrel Cortex

Cerebral Cortex, 1991
We studied thalamocortical afferent (TCA) growth into somatosensory cortex as the whisker barrels emerge in postnatal mice. Ingrowing fibers from the ventrobasal (VB) thalamus were selectively labeled by two means. Under direct vision, individual axons and populations of axons were labeled in vitro with HRP, or in fixed tissue with Dil (1,1 ...
S L, Senft, T A, Woolsey
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The Barrel Cortex of Rodents

1995
Comparative Aspects of Barrel Structure and Development F.L. Rice. Organization and Development of the Forepaw Representation in Forepaw Barrel Subfield (FBS) in Somatosensory Cortex (SI) of Rat R.S. Waters, et al. What Makes Subcortical Barrels? Requisite Trigeminal Circuitry and Developmental Mechanisms T.A. Henderson, M.F. Jacquin.
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Functional barrel cortex in ‘hairless’, nude mice

Brain Research, 2007
Although nude mice are not truly hairless, they demonstrate abnormal hair structure and growth patterns, which are related to their genetic state. Whereas wild-type mice are born with visible vibrissae, nude mice are distinguishable at birth by the lack of visible vibrissae, which do not appear until approximately postnatal day 6.
Richard T, Stevens, Charles J, Hodge
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The Role of Acetylcholine in Barrel Cortex

1995
Over the past several decades, acetylcholine (ACh) has been recognized as an important factor in neocortical function. The neocortical source of ACh arises from the basal forebrain, where specific nuclear groups supply the entire cortical mantle with this ubiquitous neurotransmitter (Mesulam et al., 1983; Rye et al., 1984; Wainer and Mesulam, 1990 ...
Sharon L. Juliano, S. Essie Jacobs
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Mouse Barrel Cortex Viewed as Dirichlet Domains

Cerebral Cortex, 1991
Barrels are patterned groups of neurons in rodent somatosensory cortex that correspond one to one with the animal's facial whiskers. Dirichlet domains are a class of convex polygon found frequently in nature, often arising by nucleation from center points.
S L, Senft, T A, Woolsey
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Synaptic Microcircuits in the Barrel Cortex

2015
An elementary feature of sensory cortices is thought to be their organisation into functional signal-processing units called ‘cortical columns’. These elementary units process sensory information arriving from peripheral receptors; they are vertically oriented throughout all cortical layers and contain several thousands of excitatory and inhibitory ...
Gabriele Radnikow, Guanxiao Qi, Dirk Feldmeyer   +2 more
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Developmental distribution of calretinin in mouse barrel cortex

Developmental Brain Research, 2003
We describe the postnatal development of calretinin expression in the mouse barrel cortex by immunohistochemistry. A densely staining neuropil and numerous cell bodies appeared throughout layer V, but only within barrel septa of layer IV, at postnatal day 4. This staining pattern became most robust at postnatal day 8.
Neal R, Melvin, Richard H, Dyck
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