title: On predicting others' words: electrophysiological evidence of prediction in speech production.
abstract: The present study investigated whether lexical processes that occur when we name objects can also be observed when an interaction partner is naming objects. We compared the behavioral and electrophysiological responses of participants performing a conditional go/no-go picture naming task in two different conditions: individually and jointly with a confederate participant. To obtain an index of lexical processing, we manipulated lexical frequency, so that half of the pictures had corresponding names of high-frequency and the remaining half had names of low-frequency. Color cues determined whether participants should respond, whether their task-partner should respond, or whether nobody should respond. Behavioral and ERP results showed that participants engaged in lexical processing when it was their turn to respond. Crucially, ERP results on no-go trials revealed that participants also engaged in lexical processing when it was their partner's turn to act. In addition, ERP results showed increased response inhibition selectively when it was the partner's turn to act. These findings provide evidence for the claim that listeners generate predictions about speakers' utterances by relying on their own action production system.
authors.affiliation: Center of Brain and Cognition, CBC, Universitat Pompeu Fabra, Barcelona, Spain; Laboratoire de Psychology Cognitive, CNRS - Universite Aix-Marseille, Marseille, France. Electronic address: baus.cristina@gmail.com.
authors.forename: Cristina
authors.initials: C
authors.lastname: Baus
authors.affiliation: Department of Cognitive Science, Central European University, Budapest, Hungary.
authors.forename: Natalie
authors.initials: N
authors.lastname: Sebanz
authors.affiliation: Center of Brain and Cognition, CBC, Universitat Pompeu Fabra, Barcelona, Spain.
authors.forename: Vania
authors.initials: V
authors.lastname: de la Fuente
authors.affiliation: Center of Brain and Cognition, CBC, Universitat Pompeu Fabra, Barcelona, Spain.
authors.forename: Francesca Martina
authors.initials: FM
authors.lastname: Branzi
authors.affiliation: Basque Center on Cognition, Brain and Language, BCBL, Donostia, Spain; IKERBASQUE, Basque Foundation for Science, Bilbao, Spain.
authors.forename: Clara
authors.initials: C
authors.lastname: Martin
authors.affiliation: Center of Brain and Cognition, CBC, Universitat Pompeu Fabra, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain.
authors.forename: Albert
authors.initials: A
authors.lastname: Costa
mesh_terms: D004569:Electroencephalography; D055724:Electrophysiological Phenomena / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011597:Psychomotor Performance; D012660:Semantics; D013067:Speech Perception / Q000502:physiology*; D055815:Young Adult
keywords: Joint action; Lexical frequency; Speech production