TY - JOUR
T1 - Auditory evoked M100 reflects onset acoustics of speech sounds
AU - Gage, Nicole
AU - Poeppel, David
AU - Roberts, Timothy P.L.
AU - Hickok, Gregory
N1 - Funding Information:
We would like to thank Susanne Honma for her expert technical assistance. DP is supported by the James S. McDonnell Foundation's McDonnell–Pew Program in Cognitive Neuroscience.
PY - 1998/12/14
Y1 - 1998/12/14
N2 - Magnetoencephalography (MEG) was used to investigate the response to speech sounds that differ in onset dynamics, parameterized as words that have initial stop consonants (e.g., /b/, /t/) or do not (e.g., /m/, /f/). Latency and amplitude of the M100 auditory evoked neuromagnetic field, recorded over right and left auditory cortices, varied as a function of onset: stops had shorter latencies and higher amplitudes than no-stops in both hemispheres, consistent with the hypothesis that M100 is a sensitive indicator of spectral properties of acoustic stimuli. Further, activation patterns in response to stops/no-stops differed in the two hemispheres, possibly reflecting differential perceptual processing for the acoustic-phonetic cues at the onset of spoken words.
AB - Magnetoencephalography (MEG) was used to investigate the response to speech sounds that differ in onset dynamics, parameterized as words that have initial stop consonants (e.g., /b/, /t/) or do not (e.g., /m/, /f/). Latency and amplitude of the M100 auditory evoked neuromagnetic field, recorded over right and left auditory cortices, varied as a function of onset: stops had shorter latencies and higher amplitudes than no-stops in both hemispheres, consistent with the hypothesis that M100 is a sensitive indicator of spectral properties of acoustic stimuli. Further, activation patterns in response to stops/no-stops differed in the two hemispheres, possibly reflecting differential perceptual processing for the acoustic-phonetic cues at the onset of spoken words.
KW - Auditory
KW - Cognitive neuroscience
KW - Language
KW - Lateralization
KW - Magnetoencephalography
KW - Speech
KW - Temporal processing
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U2 - 10.1016/S0006-8993(98)01058-0
DO - 10.1016/S0006-8993(98)01058-0
M3 - Article
C2 - 9838140
AN - SCOPUS:0032517848
SN - 0006-8993
VL - 814
SP - 236
EP - 239
JO - Brain Research
JF - Brain Research
IS - 1-2
ER -