DUAL-TASK EFFECTS ON SPEECH AND NON-VERBAL TASKS ACCORDING TO TASKS PROPERTIES

Michaela Pernon (1) , Maryll Fournet , Cécile Fougeron (1) , Marina Laganaro

1 LPP - LPP - Laboratoire de Phonétique et Phonologie - UMR 7018

Speaking while doing another task is frequent in everyday life. While the effect of speaking on performing another task has been often studied, little is known on the effect of dual-task on speech, or on the bidirectional interference of one task on the other. Here, we investigate dual-task effects on both speech rate and on performances in non-verbal attentional tasks with a bidirectional approach. Task properties are varied for the type of speech task: counting vs. sentence production, the type of non-verbal tasks in terms of attentional demand (go vs. go-nogo), and mode of presentation of the stimuli. Speech rate is found to decrease under dual-task conditions only in the counting task, and with most of the concurrent non-verbal tasks. Processing of the non-verbal tasks is also modified when speaking, but the direction of the effect depends on the type of speech tasks and of non-verbal tasks.

Mots clés: dual-task; speech rate; type of speech task; attentional demand

Domaines: Linguistique

Michaela Pernon, Maryll Fournet, Cécile Fougeron, Marina Laganaro. DUAL-TASK EFFECTS ON SPEECH AND NON-VERBAL TASKS ACCORDING TO TASKS PROPERTIES. 19th International Congress of Phonetic Sciences, 2019, Melbourne, Australia. ⟨hal-02427703⟩