Preverbal error-monitoring in stutterers and fluent speakers  

Oleh:

Arnstein, Daniel ; Lakey, Brian ; Compton, Rebecca J. ; Kleinow, Jennifer

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 116 no. 3 (2011), page 105-115.
Topik: Speech-monitoring; ERN; Stuttering; Error-monitoring; Covert repair
Fulltext: 116_03_Arnstein.pdf (727.46KB)

Isi artikel

This study was designed to characterize the brain system that monitors speech in people who stutter and matched controls. We measured two electrophysiological peaks associated with action-monitoring: the error-related negativity (ERN) and the error positivity (Pe). Both the ERN and Pe were reliably observed after errors in a rhyming task and a nonverbal flanker task, replicating previous reports of a languagemonitoring ERN and demonstrating that the Pe can also be elicited by phonological errors. In the rhyming task, stutterers showed a heightened ERN peak regardless of whether they actually committed an error. Similar results, though only marginally significant, were obtained from the flanker task. These results support the vicious cycle hypothesis, which posits that stuttering results from over-monitoring the speech plan. The elevation of the ERN in stutterers and the similarity of the results between the flanker and rhyming tasks implies that speech-monitoring may rely on the same neural substrate as actionmonitoring.

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali