UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Effects of parietal TMS on somatosensory judgments challenge interhemispheric rivalry accounts

Eshel, N; Ruff, CC; Spitzer, B; Blankenburg, F; Driver, J; (2010) Effects of parietal TMS on somatosensory judgments challenge interhemispheric rivalry accounts. Neuropsychologia , 48 (12) 3470 - 3481. 10.1016/j.neuropsychologia.2010.07.031. Green open access

[img]
Preview
Text
Driver_1-s2.0-S0028393210003386-main.pdf - Published version

Download (773kB) | Preview

Abstract

Interplay between the cerebral hemispheres is vital for coordinating perception and behavior One influential account holds that the hemispheres engage in rivalry each inhibiting the other In the somatosensory domain a seminal paper claimed to demonstrate such interhemispheric rivalry reporting improved tactile detection sensitivity on the right hand after transcranial magnetic stimulation (TMS) to the right parietal lobe (Seyal Ro & Rafal 1995) Such Improvement in tactile detection ipsilateral to TMS could follow from interhemispheric rivalry if one assumes that TMS disrupted cortical processing under the coil and thereby released the other hemisphere from inhibition Here we extended the study by Seyal et al (1995) to determine the effects of right parietal TMS on tactile processing for either hand rather than only the ipsilateral hand We performed two experiments applying TMS in the context of median-nerve stimulation one experiment required somatosensory detection the second somatosensory intensity discrimination We found different TMS effects on detection versus discrimination but neither set of results followed the prediction from hemispheric rivalry that enhanced performance for one hand should invariably be associated with impaired performance for the other hand and vice-versa Our results argue against a strict rivalry interpretation Instead suggesting that parietal TMS can provide a pedestal-like increment in somatosensory response (C) 2010 Elsevier Ltd All rights reserved

Type: Article
Title: Effects of parietal TMS on somatosensory judgments challenge interhemispheric rivalry accounts
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.neuropsychologia.2010.07.031
Publisher version: http://doi.org/10.1016/j.neuropsychologia.2010.07....
Language: English
Additional information: © 2010 Elsevier Ltd. Open access under CC BY license.
Keywords: Transcranial magnetic stimulation, Rivalry, Tactile perception, TRANSCRANIAL MAGNETIC STIMULATION, HUMAN MOTOR CORTEX, MEDIAN NERVE-STIMULATION, CORTICAL EXCITABILITY, TRANSIENT SUPPRESSION, MOVEMENT KINEMATICS, SENSORIMOTOR CORTEX, TACTILE PERCEPTION, VISUAL-ATTENTION, CORPUS-CALLOSUM
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Institute of Cognitive Neuroscience
URI: https://discovery.ucl.ac.uk/id/eprint/168126
Downloads since deposit
77Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item