Plasticity in second language learning: The case of Mandarin tones.

Area of Science:

• Linguistics
• Auditory Perception
• Second Language Acquisition

Background:

• Adults often struggle with non-native sound contrasts.
• Challenges may differ when sounds overlap versus conflict.

Purpose of the Study:

• Investigate adult perception of Mandarin lexical tones.
• Examine if overlapping, non-conflicting sounds pose similar challenges.

Main Methods:

• Tested Mandarin tone perception in native speakers, classroom learners, and naïve listeners.
• Assessed performance changes after classroom exposure.

Main Results:

• Naïve listeners could discriminate Mandarin tones above chance.
• One month of classroom learning significantly improved perception.
• Advanced learners' perception matched native speakers'.

Conclusions:

• Adults can readily acquire perceptual skills for Mandarin tones.
• Classroom learning demonstrates significant auditory plasticity.
• Overlapping, non-conflicting sounds may be easier to acquire than conflicting ones.