Individual differences in attention control and the processing of phonological contrasts in a second language

Area of Science:

• Cognitive Psychology
• Second Language Acquisition
• Phonetics

Background:

• Understanding cognitive individual differences is crucial for explaining L2 phonological acquisition.
• Attention control's role in L2 phonological processing remains underexplored.

Purpose of the Study:

• To investigate the relationship between attention control and L2 phonological processing in adult learners.
• To determine if attention control predicts phonological acquisition in L2 learning.

Main Methods:

• Assessed attention control using a novel speech-based attention-switching task.
• Measured phonological processing via speeded ABX categorization (perception) and delayed sentence repetition (production).
• Analyzed data from 21 L1-Spanish learners of English and 19 L1-English learners of Spanish.

Main Results:

• Efficient attention switching correlated with faster perceptual discrimination of L2 vowels, but not higher accuracy.
• Attentional flexibility offered a processing advantage for challenging L2 contrasts.
• Attention control was linked to improved L2 vowel production accuracy and perceptual-phonetic distinction.

Conclusions:

• Attentional flexibility enhances L2 phonological processing speed but does not predict the establishment of precise L2 vowel representations.
• Attention control significantly influences L2 learners' production capabilities for distinguishing L2 vowels.
• Perceptual accuracy in distinguishing L2 vowels is closely tied to production quality.