par Pattamadilok, Chotiga 
;Morais, Jose ;Colin, Cécile ;Kolinsky, Régine
Référence Brain and language, 137, page (103-111)
Publication Publié, 2014
;Morais, Jose ;Colin, Cécile ;Kolinsky, Régine Référence Brain and language, 137, page (103-111)
Publication Publié, 2014
Article révisé par les pairs
| Résumé : | How far can acquired knowledge such as orthographic knowledge affect pre-existing abilities such as speech perception? This controversial issue was addressed by investigating the automaticity of the influence of orthographic knowledge on speech processing. Many behavioral and brain-imaging studies demonstrated this influence in active, lexico-semantic speech processing tasks. However, it has never been observed when speech is unattended. Here, the Mismatch Negativity (MMN), an automatic index of experience-dependent auditory traces, was recorded in an unattended oddball paradigm manipulating the orthographic congruency between frequent and deviant spoken riming words. Both orthographically congruent and incongruent deviant words elicited a typical MMN over the fronto-central regions, with a stronger MMN response in the incongruent condition. The finding showed that the orthographic dimension of spoken words influences a physiological marker of speech processing although participants were required not to attend to the auditory input. This provides evidence for an impact of acquiring a written code on speech processing. |
