Rapid adaptation to foreign-accented English

Area of Science:

• Psycholinguistics
• Auditory Perception
• Second Language Acquisition

Background:

• Human speech processing is typically optimized for native language patterns.
• Listeners often experience initial difficulties processing non-native accented speech.

Purpose of the Study:

• To investigate the perceptual benefits and adaptation effects of brief exposure to non-native speech.
• To determine the time course and extent of adaptation to accented speech.

Main Methods:

• Native English listeners completed a visual probe word reaction time task.
• Exposure to Spanish- and Chinese-accented English sentences preceded probe word presentation.
• Control conditions assessed task practice and general difficulty strategies.

Main Results:

• Initial reaction times were slower for accented speech compared to native speech.
• Processing speed deficits diminished significantly within approximately one minute of exposure.
• Adaptation to accented speech was observed after only two to four sentence-length utterances.

Conclusions:

• Human speech perception demonstrates remarkable flexibility in adapting to acoustic-phonetic variations.
• Models of spoken word recognition need to account for rapid adaptation to non-native speech patterns.
• Brief exposure can significantly enhance the processing of accented speech.