Altered cortical activation from the hand after facial Botulinum Toxin Treatment
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Date
2014-01
Publication Type
Journal Article
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yes
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Abstract
Plastic interactions between face and hand cortical tactile circuits occur after severe injuries that affect the hand such as in amputation or spinal cord injury. However, whether loss of facial movements alters the cortical circuits involved in processing tactile inputs from the hand remains unknown. In this prospective observational study we used electroencephalography (EEG) to measure cortical activity evoked by tactile stimulation of the hands before and after botulinum toxin-A-induced facial paralysis. We found a reduction in the tactile event-related potentials (ERPs) 6 weeks after the treatment. This suggests that the limited paralysis of facial muscles induced during cosmetic interventions designed to smooth lines and wrinkles on the face is sufficient to alter the cortical processing of tactile inputs from the hand.
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published
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Journal / series
Volume
1 (1)
Pages / Article No.
64 - 68
Publisher
Wiley
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Organisational unit
03454 - Martin, Kevan A.C. (emeritus)
03955 - Stephan, Klaas E. / Stephan, Klaas E.
Notes
Manuscript received 13 September 2013, Manuscript revised 23 October 2013, Manuscript accepted 25 October 2013, Article first published online 25 November 2013, Issue published online 22 January 2014.