TY - JOUR
T1 - Representation of spectro-temporal features of spoken words within the P1-N1-P2 and T-complex of the auditory evoked potentials (AEP)
AU - Wagner, Monica
AU - Roychoudhury, Arindam
AU - Campanelli, Luca
AU - Shafer, Valerie L.
AU - Martin, Brett
AU - Steinschneider, Mitchell
N1 - Publisher Copyright:
© 2016 Elsevier Ireland Ltd.
PY - 2016/2/12
Y1 - 2016/2/12
N2 - The purpose of the study was to determine whether P1-N1-P2 and T-complex morphology reflect spectro-temporal features within spoken words that approximate the natural variation of a speaker and whether waveform morphology is reliable at group and individual levels, necessary for probing auditory deficits. The P1-N1-P2 and T-complex to the syllables /pət/ and /sət/ within 70 natural word productions each were examined. EEG was recorded while participants heard nonsense word pairs and performed a syllable identification task to the second word in the pairs. Single trial auditory evoked potentials (AEP) to the first words were analyzed. Results found P1-N1-P2 and T-complex to reflect spectral and temporal feature processing. Also, results identified preliminary benchmarks for single trial response variability for individual subjects for sensory processing between 50 and 600. ms. P1-N1-P2 and T-complex, at least at group level, may serve as phenotypic signatures to identify deficits in spectro-temporal feature recognition and to determine area of deficit, the superior temporal plane or lateral superior temporal gyrus.
AB - The purpose of the study was to determine whether P1-N1-P2 and T-complex morphology reflect spectro-temporal features within spoken words that approximate the natural variation of a speaker and whether waveform morphology is reliable at group and individual levels, necessary for probing auditory deficits. The P1-N1-P2 and T-complex to the syllables /pət/ and /sət/ within 70 natural word productions each were examined. EEG was recorded while participants heard nonsense word pairs and performed a syllable identification task to the second word in the pairs. Single trial auditory evoked potentials (AEP) to the first words were analyzed. Results found P1-N1-P2 and T-complex to reflect spectral and temporal feature processing. Also, results identified preliminary benchmarks for single trial response variability for individual subjects for sensory processing between 50 and 600. ms. P1-N1-P2 and T-complex, at least at group level, may serve as phenotypic signatures to identify deficits in spectro-temporal feature recognition and to determine area of deficit, the superior temporal plane or lateral superior temporal gyrus.
KW - Auditory evoked potentials (AEP)
KW - P1-N1-P2
KW - Single trial analysis
KW - Spectral processing
KW - T-complex
KW - Temporal processing
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UR - http://www.scopus.com/inward/citedby.url?scp=84961306284&partnerID=8YFLogxK
U2 - 10.1016/j.neulet.2015.12.020
DO - 10.1016/j.neulet.2015.12.020
M3 - Article
C2 - 26700876
AN - SCOPUS:84961306284
SN - 0304-3940
VL - 614
SP - 119
EP - 126
JO - Neuroscience Letters
JF - Neuroscience Letters
ER -