title: Gesture influences the processing of figurative language in non-native speakers: ERP evidence.
abstract: Gestures should play a role in second language comprehension, given their importance in conveying contextual information. In this study, the N400 and the LPC were evaluated in a task involving the observation of videos showing utterances accompanied by gestures. Students studying advanced (G-High participants) and basic German (G-Low participants) as a second language were investigated. The utterance-gesture congruence and metaphoric meaning of content were manipulated during the task. As in previous ERP reports with native speakers, metaphorical expressions were sensitive to gestures. In G-Low participants, no modulation in the 300-500 ms window was observed, and only a modest effect was observed for the 500-700 ms window. More subtle differences of verbal expression were not processed in this group. Consistent with previous reports of the same paradigm with native speakers, the N400 from G-High group discriminated both congruent and incongruent gestures as well as literal and metaphorical sentences. Our results suggest that semantic processing is robust in the learning of a second language, although the amplitude modulation and latency of ERPs might depend on the speaker's proficiency level.
authors.affiliation: Neuroscience Laboratory, University Diego Portales, Santiago, Chile. aibanez@neurologiaconitiva.org
authors.forename: Agustín
authors.initials: A
authors.lastname: Ibáñez
authors.forename: Facundo
authors.initials: F
authors.lastname: Manes
authors.forename: Josefina
authors.initials: J
authors.lastname: Escobar
authors.forename: Natalia
authors.initials: N
authors.lastname: Trujillo
authors.forename: Paola
authors.initials: P
authors.lastname: Andreucci
authors.forename: Esteban
authors.initials: E
authors.lastname: Hurtado
mesh_terms: D032882:Comprehension; D005071:Evoked Potentials; D005260:Female; D005868:Gestures; D006801:Humans; D008297:Male; D019365:Metaphor; D012660:Semantics; D013060:Speech; D013067:Speech Perception; D055815:Young Adult