The cortical processing of rising-intensity tonal and speech stimuli in young adults: Effects of spectral complexity

Using magnetoencephalography (MEG), we studied nine healthy young subjects and presented them with auditory sinusoidal stimuli or spectrally complex speech sounds rising in intensity over a duration of 750 ms. The speech sounds elicited more prominent transient brain activity than their frequency-ma...

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Bibliographic Details
Published in:International Congress series 2007-06, Vol.1300, p.49-52
Main Authors: Matilainen, L.-E., Talvitie, S.S., Alku, P., Mäkelä, A.M., Mäkinen, V., May, P.J.C., Pekkonen, E., Tiitinen, H.
Format: Article
Language:English
Subjects:
Auditory
Human
Magnetoencephalography
Sound detection
Speech
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Summary:Using magnetoencephalography (MEG), we studied nine healthy young subjects and presented them with auditory sinusoidal stimuli or spectrally complex speech sounds rising in intensity over a duration of 750 ms. The speech sounds elicited more prominent transient brain activity than their frequency-matched sinusoidal counterparts. Attentional engagement further enhanced the amplitude of the responses for both stimulus types. The findings hold promise for both basic and applied research.
ISSN:0531-5131
1873-6157
DOI:10.1016/j.ics.2007.02.009