Tohoku J. Exp. Med., 1998, 185 (2)

The Acoustic Reflex for Filtered Broadband Stimuli: A Lesser Contribution of the Lower Frequency Neurons

TETSUAKI KAWASE, HIROSHI HIDAKA, MASAKI OGURA, SHO HASHIMOTO and TOMONORI TAKASAKA

Department of Otolaryngology, Tohoku University School of Medicine, Sendai 980-8574

  • The effects of the cut-off frequency of the filtered broadband stimuli on the human acoustic reflex (AR) were examined to observe the relation between the area of excitation in the cochlea and the AR response. The results obtained have indicated that all the input from the cochlear region does not equally contribute to trigger the AR equally; i.e., there is a lesser contribution from the frequency region below 700 Hz.
    Key words--- acoustic reflex; filtered noise; input mechanism; human
    © 1998 Tohoku University Medical Press

    Tohoku J. Exp. Med., 1998, 185, 131-137
    Address for reprints: Tetsuaki Kawase, M.D., Department of Otolaryngology, Tohoku University School of Medicine, 1-1 Seiryomachi, Aoba-ku, Sendai 980-8574, Japan.
    e-mail: kaw@cctu.cc.tohoku.ac.jp

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