Tracking the time course of sign recognition using ERP repetition priming.
ERPs
N400
repetition priming
sign language
Journal
Psychophysiology
ISSN: 1540-5958
Titre abrégé: Psychophysiology
Pays: United States
ID NLM: 0142657
Informations de publication
Date de publication:
03 2022
03 2022
Historique:
revised:
28
09
2021
received:
13
05
2021
accepted:
03
11
2021
pubmed:
19
11
2021
medline:
25
2
2022
entrez:
18
11
2021
Statut:
ppublish
Résumé
Repetition priming and event-related potentials (ERPs) were used to investigate the time course of sign recognition in deaf users of American Sign Language. Signers performed a go/no-go semantic categorization task to rare probe signs referring to people; critical target items were repeated and unrelated signs. In Experiment 1, ERPs were time-locked either to the onset of the video or to sign onset within the video; in Experiment 2, the same full videos were clipped so that video and sign onset were aligned (removing transitional movements), and ERPs were time-locked to video/sign onset. All analyses revealed an N400 repetition priming effect (less negativity for repeated than unrelated signs) but differed in the timing and/or duration of the N400 effect. Results from Experiment 1 revealed that repetition priming effects began before sign onset within a video, suggesting that signers are sensitive to linguistic information within the transitional movement to sign onset. The timing and duration of the N400 for clipped videos were more parallel to that observed previously for auditorily presented words and was 200 ms shorter than either time-locking analysis from Experiment 1. We conclude that time-locking to full video onset is optimal when early ERP components or sensitivity to transitional movements are of interest and that time-locking to the onset of clipped videos is optimal for priming studies with fluent signers.
Identifiants
pubmed: 34791683
doi: 10.1111/psyp.13975
pmc: PMC9583460
mid: NIHMS1842641
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
e13975Subventions
Organisme : NIDCD NIH HHS
ID : R01 DC010997
Pays : United States
Informations de copyright
© 2021 Society for Psychophysiological Research.
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