Non-specific facilitatory influence of transcranial direct current stimulation on novel word asquition

TY - JOUR

T1 - Non-specific facilitatory influence of transcranial direct current stimulation on novel word asquition

AU - Filippova, M. G.

AU - Perikova, E. I.

AU - Blagovechtchenski, E. D.

AU - Shcherbakova, O. V.

AU - Kirsanov, A. S.

AU - Shtyrov, Y. Y.

PY - 2022

Y1 - 2022

N2 - This study aimed at systematically assessing the effects of transcranial direct current stimulation (tDCS) on novel word learning. Using a sample of 288 healthy volunteers, we modulated tDCS stimulation regimes (anodal/cathodal/placebo), stimulated hemisphere (left/right), site (Bro-ca/Wernicke/right-hemispheric Broca/Wernicke homologues), and assessed tDCS effects on different learning protocols: fast mapping vs. explicit encoding, with vs. without articulation. After 15 minutes of 1.5 mA tDCS, participants were auditorily presented with 8 novel words repeated 10 times each in a sentential context in association with pictures. Learning outcomes were quantified as reaction times in semantic word-picture matching task. The results showed that tDCS led to facilitation of novel word learning, expressed as faster semantic matching for different tDCS regimes in comparison with placebo, which did not depend on stimulation site or learning regime.

AB - This study aimed at systematically assessing the effects of transcranial direct current stimulation (tDCS) on novel word learning. Using a sample of 288 healthy volunteers, we modulated tDCS stimulation regimes (anodal/cathodal/placebo), stimulated hemisphere (left/right), site (Bro-ca/Wernicke/right-hemispheric Broca/Wernicke homologues), and assessed tDCS effects on different learning protocols: fast mapping vs. explicit encoding, with vs. without articulation. After 15 minutes of 1.5 mA tDCS, participants were auditorily presented with 8 novel words repeated 10 times each in a sentential context in association with pictures. Learning outcomes were quantified as reaction times in semantic word-picture matching task. The results showed that tDCS led to facilitation of novel word learning, expressed as faster semantic matching for different tDCS regimes in comparison with placebo, which did not depend on stimulation site or learning regime.

KW - anodal

KW - articulation

KW - Broca's area

KW - cathodal

KW - explicit encoding

KW - fast mapping

KW - language acquisition

KW - tDCS

KW - Wernicke's area

KW - word learning

UR - http://www.scopus.com/inward/record.url?scp=85134667517&partnerID=8YFLogxK

U2 - 10.31857/S0044467722020046

DO - 10.31857/S0044467722020046

M3 - Journal article

AN - SCOPUS:85134667517

SN - 0044-4677

VL - 72

SP - 227

EP - 232

JO - Zhurnal Vysshei Nervnoi Deyatelnosti Imeni I.P. Pavlova

JF - Zhurnal Vysshei Nervnoi Deyatelnosti Imeni I.P. Pavlova

IS - 2

ER -