Abstract #0138
MEG and fMRI localization of infrasonic and low-frequency sound
Markus Weichenberger 1 , Rdiger Brhl 2 , Martin Bauer 2 , Robert Khler 2 , Albrecht Ihlenfeld 2 , Johannes Hensel 2 , Christian Koch 2 , Bernd Ittermann 2 , Simone Khn 1 , and Tilmann Sander 2
1
Max Planck Institute for Human Development,
Berlin, Germany,
2
Physikalisch-Technische
Bundesanstalt (PTB), Braunschweig und Berlin, Germany
Infrasound is a potential hazard to human health. This
multimodal study is targeting the perception of
infrasound and low-frequency sound in humans. Sinusoidal
acoustic stimuli of seven frequencies (8, 12, 20 , 40,
63, 125, 250 Hz) were individually calibrated for 15
volunteers and applied while conducting a MEG and fMRI
study. Location and amplitude of the activated brain
area were analyzed for both modalities showing different
frequency dependencies. Although the reception of the
infrasound is mainly tactile only brain activation in
the region of the auditorial cortex was found.
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