Research output

Article in Journal ()

Semantic priming in the motor cortex: Evidence from combined repetitive transcranial magnetic stimulation and event-related potential

Citation
Kuipers JR, van Koningsbruggen M & Thierry G (2013) Semantic priming in the motor cortex: Evidence from combined repetitive transcranial magnetic stimulation and event-related potential, NeuroReport, 24 (12), pp. 646-651.

Abstract
Reading action verbs is associated with activity in the motor cortices involved in performing the corresponding actions. Here, we present new evidence that the motor cortex is involved in semantic processing of bodily action verbs. In contrast to previous studies, we used a direct, nonbehavioural index of semantic processing after repetitive transcranial magnetic stimulation (rTMS). Participants saw pairs of hand-related (e.g. to grab-to point) or mouth-related (e.g. to speak-to sing) verbs, whereas semantic priming was assessed using event-related potentials. Presentation of the first verb coincided with rTMS over the participant's cortical-left hand area and event-related brain potentials were analysed time-locked to the presentation onset of the second verb. Semantic integration - indexed by the N400 brain potential - was impaired for hand-related but not for mouth-related verb pairs after rTMS. This finding provides strong evidence that the motor cortex is involved in semantic encoding of action verbs, and supports the ‘embodied semantics' hypothesis.

Keywords
event-related potentials; N400; semantic embodiment; transcranial magnetic stimulation

StatusPublished
AuthorsKuipers Jan Rouke, van Koningsbruggen Martijn, Thierry Guillaume
Publication date08/2013
PublisherLippincott Williams & Wilkins
ISSN 0959-4965
LanguageEnglish

Journal
Neuroreport: Volume 24, Issue 12 (2013)

© University of Stirling FK9 4LA Scotland UK • Telephone +44 1786 473171 • Scottish Charity No SC011159
My Portal