TY - JOUR
T1 - Cross-phaseogram
T2 - Objective neural index of speech sound differentiation
AU - Skoe, Erika
AU - Nicol, Trent
AU - Kraus, Nina
N1 - Funding Information:
The authors wish to thank the members of the Auditory Neuroscience Laboratory for their assistance with data collection, as well as Sumitrajit Dhar, Daniel Abrams, Jane Hornickel, Dana Strait and two anonymous reviewers for the helpful comments on an earlier version of this manuscript. Supported by NIH R01 DC01510 and NIH R01 DC010016 .
PY - 2011/3/30
Y1 - 2011/3/30
N2 - We introduce a new approach, the cross-phaseogram, that captures the brain's ability to discriminate between spectrotemporally dynamic speech sounds, such as stop consonants. The goal was to develop an analysis technique for auditory brainstem responses (ABRs) that taps into the sub-millisecond temporal precision of the response but does not rely on subjective identification of individual response peaks. Using the cross-phaseogram technique, we show that time-varying frequency differences in speech stimuli manifest as phase differences in ABRs. By applying this automated and objective technique to a large dataset, we found these phase differences to be less pronounced in children who perform below average on a standardized test of listening to speech in noise. We discuss the theoretical and practical implications of our results, and the extension of the cross-phaseogram method to a wider range of stimuli and populations.
AB - We introduce a new approach, the cross-phaseogram, that captures the brain's ability to discriminate between spectrotemporally dynamic speech sounds, such as stop consonants. The goal was to develop an analysis technique for auditory brainstem responses (ABRs) that taps into the sub-millisecond temporal precision of the response but does not rely on subjective identification of individual response peaks. Using the cross-phaseogram technique, we show that time-varying frequency differences in speech stimuli manifest as phase differences in ABRs. By applying this automated and objective technique to a large dataset, we found these phase differences to be less pronounced in children who perform below average on a standardized test of listening to speech in noise. We discuss the theoretical and practical implications of our results, and the extension of the cross-phaseogram method to a wider range of stimuli and populations.
KW - Auditory brainstem response
KW - Phase
KW - Speech
KW - Speech-in-noise perception
KW - Subcortical
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U2 - 10.1016/j.jneumeth.2011.01.020
DO - 10.1016/j.jneumeth.2011.01.020
M3 - Article
C2 - 21277896
AN - SCOPUS:79952533502
VL - 196
SP - 308
EP - 317
JO - Journal of Neuroscience Methods
JF - Journal of Neuroscience Methods
SN - 0165-0270
IS - 2
ER -