Results 31 to 40 of about 437,838 (300)

On the Geometry of Somatosensory Representations in the Cortex

NeuroImage
Abstract It is well-known that cortical areas specializing in the processing of somatosensory information from different parts of the body are arranged in an orderly manner along the cortex. It is also generally accepted that in the cortex, somatosensory information is initially processed in the primary somatosensory cortex and from ...
Noam Saadon-Grosman, Tsahi Asher, Yonatan Loewenstein   +2 more
openaire   +3 more sources

Normalization in human somatosensory cortex

Journal of Neurophysiology, 2015
Functional magnetic resonance imaging (fMRI) was used to measure activity in human somatosensory cortex and to test for cross-digit suppression. Subjects received stimulation (vibration of varying amplitudes) to the right thumb (target) with or without concurrent stimulation of the right middle finger (mask).
Gijs Joost, Brouwer, Vanessa, Arnedo, Shani, Offen, David J, Heeger, Arthur C, Grant   +4 more
openaire   +3 more sources

Effect of Prenatal Valproic Acid Exposure on Cortical Morphology in Female Mice

Journal of Pharmacological Sciences, 2012
We have recently shown that prenatal valproic acid (VPA) exposure causes autism spectrum disorders–like behavioral abnormalities and Nissl-positive cell loss in both prefrontal and somatosensory cortices in male mice.
Yuta Hara, Yuko Maeda, Shunsuke Kataoka, Yukio Ago, Kazuhiro Takuma, Toshio Matsuda   +5 more
doaj   +1 more source

NMDA receptors control development of somatosensory callosal axonal projections

eLife, 2021
Callosal projections from primary somatosensory cortex (S1) are key for processing somatosensory inputs and integrating sensory-motor information. How the callosal innervation pattern in S1 is formed during early postnatal development is not clear.
Jing Zhou, Yong Lin, Trung Huynh, Hirofumi Noguchi, Jeffrey O Bush, Samuel J Pleasure   +5 more
doaj   +1 more source

MEG reveals a fast pathway from somatosensory cortex to occipital areas via posterior parietal cortex in a blind subject

Frontiers in Human Neuroscience, 2013
Cross-modal activity in visual cortex of blind subjects has been reported during performance of variety of non-visual tasks. A key unanswered question is through which pathways non-visual inputs are funneled to the visual cortex. Here we used tomographic
Andreas A Ioannides, Lichan eLiu, Vahe ePoghosyan, George A Saridis, Albert eGjedde, Maurice ePtito, Maurice ePtito, Ron eKupers, Ron eKupers   +8 more
doaj   +1 more source

Unmasking of latent synaptic connections in the cortex of the rat, elicited by a facial nerve transection [PDF]

, 2001
Peripheral nerve injury elicits plastic changes in the cortex, resulting in reorganization of the somatotopic representation maps. These processes begin within minutes after nerve injury, and last for weeks.
Toldi, József, Toldi József, Farkas, Tamás, Farkas Tamás   +3 more
core   +1 more source

Electroacupuncture-Induced Plasticity between Different Representations in Human Motor Cortex

Neural Plasticity, 2020
Somatosensory stimulation can effectively induce plasticity in the motor cortex representation of the stimulated body part. Specific interactions have been reported between different representations within the primary motor cortex.
Weiqin Peng, Tiange Yang, Jiawei Yuan, Jianpeng Huang, Jianhua Liu   +4 more
doaj   +1 more source

An approach to localizing corneal pain representation in human primary somatosensory cortex. [PDF]

PLoS ONE, 2012
The cornea has been a focus of animal electrophysiological research for decades, but little is known regarding its cortical representation in the human brain. This study attempts to localize the somatotopic representation of the cornea to painful stimuli
Eric A Moulton, Lino Becerra, Perry Rosenthal, David Borsook   +3 more
doaj   +1 more source

Tactile spatial attention enhances gamma-band activity in somatosensory cortex and reduces low-frequency activity in parieto-occipital areas. [PDF]

, 2006
We investigated the effects of spatial-selective attention on oscillatory neuronal dynamics in a tactile delayed-match-to-sample task. Whole-head magnetoencephalography was recorded in healthy subjects while dot patterns were presented to their index ...
Bauer, M, Peeters, M, Fries, P, Oostenveld, R   +3 more
core  

Monosynaptic connections between pairs of spiny stellate cells in layer 4 and pyramidal cells in layer 5A indicate that lemniscal and paralemniscal afferent pathways converge in the infragranular somatosensory cortex. [PDF]

, 2005
Monosynaptic interlaminar connections between spiny stellate cells in layer 4 (L4), the main cortical recipient layer for thalamic projections, and pyramidal cells in layer 5A (L5A), one of the main cortical output layers, were examined anatomically and ...
Feldmeyer, D, Sakmann, Bert, Feldmeyer, D., Sakmann, B, Roth, A., Roth, Arnd, Roth, A, Sakmann, B., Feldmeyer, Dirk   +8 more
core   +1 more source