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Stimulus-directed attention attenuates lexically-guided perceptual learning.

Michael McAuliffe¹, Molly Babel²

¹Department of Linguistics, McGill University, Montreal, Quebec, Canada.

The Journal of the Acoustical Society of America

|December 5, 2016

Summary

This summary is machine-generated.

Listeners learn ambiguous speech sounds better when focusing on word meaning rather than just the sound signal. This perceptual learning is enhanced by directing attention toward comprehension, aiding generalization to new words.

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Area of Science:

Psycholinguistics
Auditory Perception
Cognitive Science

Background:

Phonetic variation across speakers and contexts necessitates perceptual learning in listeners.
Understanding listener control over perceptual learning of ambiguous speech sounds is crucial.

Purpose of the Study:

To investigate how attentional set influences perceptual learning of ambiguous /s/ pronunciations.
To determine if comprehension-oriented or perception-oriented listening enhances learning of novel words.

Main Methods:

Listeners performed a lexical decision exposure task with manipulated attentional focus (comprehension vs. perception).
A subsequent categorization task assessed perceptual learning with novel words.

Main Results:

Listeners biased toward comprehension-oriented attentional sets demonstrated the most significant perceptual learning.
Focusing on higher linguistic meaning facilitated generalization of learning to new words.

Conclusions:

Attentional focus significantly impacts the updating of linguistic categories during speech perception.
Comprehension-oriented attention promotes more effective perceptual learning and generalization compared to perception-oriented attention.