Early goal-directed top-down influences in the production of speech

Kristof STRIJKERS, Yen Na Cherry YUM, Jonathan GRAINGER, Phillip J. HOLCOMB

Research output: Contribution to journalArticles

16 Citations (Scopus)

Abstract

It was recently reported that the conscious intention to produce speech affects the speed with which lexical information is retrieved upon presentation of an object (Strijkers et al., 2011). The goal of the present study was to elaborate further on the role of these top-down influences in the course of planning speech behavior. In an event-related potentials (ERP) experiment, participants were required to overtly name pictures and words in one block of trials, while categorizing the same stimuli in another block of trials. The ERPs elicited by the naming task started to diverge very early on (∼170 ms) from those elicited by the semantic categorization task. Interestingly, these early ERP differences related to task intentionality were identical for pictures and words. From these results we conclude that (a) in line with Strijkers et al. (2011), goal-directed processes play a crucial role very early on in speech production, and (b) these task-driven top-down influences function at least in a domain-general manner by modulating those networks which are always relevant for the production of language, irrespective of which cortical pathways are triggered by the input. Copyright © 2011 Strijkers, Yum, Grainger and Holcomb.
Original languageEnglish
Article number371
JournalFrontiers in Psychology
Volume2
Early online date09 Dec 2011
DOIs
Publication statusPublished - Dec 2011

Citation

Strijkers, K., Yum, Y. N., Grainger, J., & Holcomb, P. J. (2011). Early goal-directed top-down influences in the production of speech. Frontiers in Psychology, 2. Retrieved from https://doi.org/10.3389/fpsyg.2011.00371

Keywords

  • Speech production
  • Goal-directed processing
  • Lexical access
  • ERPs
  • Categorization

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