Abstract
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.
Original language | English (US) |
---|---|
Pages (from-to) | 236-239 |
Number of pages | 4 |
Journal | Brain Research |
Volume | 814 |
Issue number | 1-2 |
DOIs | |
State | Published - Dec 14 1998 |
Keywords
- Auditory
- Cognitive neuroscience
- Language
- Lateralization
- Magnetoencephalography
- Speech
- Temporal processing
ASJC Scopus subject areas
- General Neuroscience
- Molecular Biology
- Clinical Neurology
- Developmental Biology