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Cerebellar transcranial direct current stimulation modulates anticipatory postural adjustments in healthy adults
Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Department of Cognitive Neurology, Hertie Institute for Clinical Brain Research, Otfried-Müller Str. 27, Tübingen, Germany.
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2023 (Engelska)Ingår i: Cerebellum, ISSN 1473-4222, E-ISSN 1473-4230, Vol. 23, nr 2, s. 383-390Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

During forward swinging of the arm, the central nervous system must anticipate the effect of upraising upon the body. Little is known about the cerebellar network that coordinates these anticipatory postural adjustments (APAs). Stimulating different cerebellar regions with transcranial direct current stimulation (tDCS) and with different polarities modulated the APAs. We used surface electromyography (sEMG) to measure muscle activities in a bilateral rapid shoulder flexion task. The onset of APAs was altered after tDCS over the vermis, while the postural stability and the kinematics of arm raising were not affected. To our knowledge, this is the first human cerebellar-tDCS (c-tDCS) study to separate cerebellar involvement in core muscle APAs in bilateral rapid shoulder flexion. These data contribute to our understanding of the cerebellar network supporting APAs in healthy adults. Modulated APAs of the erector spinae by tDCS on the vermis may be related to altered cerebellar brain inhibition (CBI), suggesting the importance of the vermal-cerebral connections in APAs regulation.

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Springer, 2023. Vol. 23, nr 2, s. 383-390
Nyckelord [en]
Anticipatory postural adjustments, Bilateral rapid shoulder flexion, Cerebellum, Transcranial direct current stimulation
Nationell ämneskategori
Neurovetenskaper Neurologi
Identifikatorer
URN: urn:nbn:se:umu:diva-205347DOI: 10.1007/s12311-023-01535-3ISI: 000937572900001PubMedID: 36821023Scopus ID: 2-s2.0-85148620437OAI: oai:DiVA.org:umu-205347DiVA, id: diva2:1748349
Tillgänglig från: 2023-04-03 Skapad: 2023-04-03 Senast uppdaterad: 2024-04-19Bibliografiskt granskad

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Sultan, Fahad

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