Induced and Evoked Properties of Vibrotactile Adaptation in the Primary Somatosensory Cortex.
Journal
Neural plasticity
ISSN: 1687-5443
Titre abrégé: Neural Plast
Pays: United States
ID NLM: 100883417
Informations de publication
Date de publication:
2019
2019
Historique:
received:
23
03
2018
accepted:
11
11
2018
entrez:
28
3
2019
pubmed:
28
3
2019
medline:
14
5
2019
Statut:
epublish
Résumé
Prolonged exposure to afferent stimulation ("adaptation") can cause profound short-term changes in the responsiveness of cortical sensory neurons. While several models have been proposed that link adaptation to single-neuron dynamics, including GABAergic inhibition, the process is currently imperfectly understood at the whole-brain level in humans. Here, we used magnetoencephalography (MEG) to examine the neurophysiological correlates of adaptation within SI in humans. In one condition, a 25 Hz adapting stimulus (5 s) was followed by a 1 s 25 Hz probe ("same"), and in a second condition, the adapting stimulus was followed by a 1 s 180 Hz probe ("different"). We hypothesized that changes in the mu-beta activity band (reflecting GABAergic processing) would be modulated differently between the "same" and "different" probe stimuli. We show that the primary somatosensory (SI) mu-beta response to the "same" probe is significantly reduced (
Identifiants
pubmed: 30915111
doi: 10.1155/2019/5464096
pmc: PMC6402197
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
5464096Subventions
Organisme : NIMH NIH HHS
ID : R00 MH107719
Pays : United States
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