Early Goal-directed Top-down Influences in the Production of Speech
Overview
Affiliations
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.
Modeling the neurocognitive dynamics of language across the lifespan.
Guichet C, Banjac S, Achard S, Mermillod M, Baciu M Hum Brain Mapp. 2024; 45(5):e26650.
PMID: 38553863 PMC: 10980845. DOI: 10.1002/hbm.26650.
Amora K, Tretow A, Verwimp C, Tijms J, Leppanen P, Csepe V Front Neurosci. 2022; 16:898800.
PMID: 35844207 PMC: 9279737. DOI: 10.3389/fnins.2022.898800.
The dynamics of reading complex words: evidence from steady-state visual evoked potentials.
Beyersmann E, Montani V, Ziegler J, Grainger J, Stoianov I Sci Rep. 2021; 11(1):15919.
PMID: 34354144 PMC: 8342500. DOI: 10.1038/s41598-021-95292-0.
Multiple routes to word recognition: evidence from event-related potentials.
Lien M, Allen P, Ruthruff E Psychol Res. 2019; 85(1):151-180.
PMID: 31624919 DOI: 10.1007/s00426-019-01256-5.
Early Brain Sensitivity to Word Frequency and Lexicality During Reading Aloud and Implicit Reading.
Faisca L, Reis A, Araujo S Front Psychol. 2019; 10:830.
PMID: 31031684 PMC: 6470259. DOI: 10.3389/fpsyg.2019.00830.