Right frontal HD-tDCS reveals causal involvement of time perception networks in temporal processing of concepts.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
03 10 2023
03 10 2023
Historique:
received:
08
05
2023
accepted:
23
09
2023
medline:
5
10
2023
pubmed:
4
10
2023
entrez:
3
10
2023
Statut:
epublish
Résumé
Evidence suggests that perceptual and action related features of concepts are grounded in the corresponding sensory-motor networks in the human brain. However, less is known about temporal features of event concepts (e.g., a lecture) and whether they are grounded in time perception networks. We examined this question by stimulating the right dorsolateral prefrontal cortex (rDLPFC)-a part of time perception network-using HD-tDCS and subsequently recording EEG while participants performed semantic and time perception tasks. Semantic tasks were composed of event noun duration judgment (EDur), object noun size judgement (OSize), event (EVal) and object noun valence judgement. In the time perception task, participants judged the durations of pure tones. Results showed that cathodal stimulation accelerated responses for time perception task and decreased the magnitude of global field power (GFP) compared to sham stimulation. Semantic tasks results revealed that cathodal, but not sham, stimulation significantly decreased GFP for EDur relative to OSize, and to EVal. These findings provide first causal evidence that temporal features of event words are grounded in the rDLPFC as part of the temporal cognition network and shed light on the conceptual processing of time.
Identifiants
pubmed: 37789056
doi: 10.1038/s41598-023-43416-z
pii: 10.1038/s41598-023-43416-z
pmc: PMC10547783
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
16658Subventions
Organisme : NIDCD NIH HHS
ID : R01 DC017162
Pays : United States
Organisme : NIDCD NIH HHS
ID : R01DC017162
Pays : United States
Informations de copyright
© 2023. Springer Nature Limited.
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