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Acoustic change complex in background noise: phoneme level and timing effects

Curtis J Billings1,2, Leslie D Grush3, Nashrah Maamor3,4

  • 1National Center for Rehabilitative Auditory Research Veterans Affairs Portland Health Care System, Portland, Oregon Curtis.Billings2@va.gov.

Physiological Reports
|October 21, 2017
PubMed
Summary

Background noise impacts speech-evoked cortical auditory evoked potentials (CAEPs). The vowel /ɑ/ response amplitude showed no signal-to-noise ratio (SNR) effect, unlike other phonemes, suggesting complex neural coding in noise.

Keywords:
Acoustic change complexcortical auditory evoked potentialsneural refractory periodsignal‐to‐noise ratiospeech stimuli

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