Inhibitory control and the speech patterns of second language users.

Area of Science:

• Cognitive Psychology
• Psycholinguistics
• Second Language Acquisition

Background:

• Inhibitory control (IC) is crucial for cognitive tasks, including bilingual language processing.
• Previous research often used single-word paradigms to study IC in bilinguals.
• This study investigates IC's role in extended L2 speech, focusing on disfluencies.

Purpose of the Study:

• To examine the relationship between individual differences in IC and L2 speech patterns.
• To determine if IC predicts specific types of disfluencies in second language learners.
• To explore the role of cognitive control in fluent L2 speech production.

Main Methods:

• Assessed inhibitory control using the Stroop task.
• Analyzed L2 spoken output for disfluencies, including reformulations, repetitions, filled pauses, and silent pauses.
• Employed regression analyses, controlling for age and L2 proficiency.

Main Results:

• Inhibitory control accuracy predicted the occurrence of reformulations in L2 speech.
• IC predicted the frequency and duration of silent pauses in L2 speakers.
• No significant relationship was found between IC and repetitions, filled pauses, or performance errors.

Conclusions:

• Inhibitory control is a significant cognitive factor influencing L2 spoken fluency.
• IC predicts specific disfluencies like reformulations and silent pauses.
• Further qualitative research is recommended to understand L2 speakers' reliance on IC.