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Updated: May 9, 2026

A Method to Study Adaptation to Left-Right Reversed Audition
Published on: October 29, 2018
Frequency-change aftereffect produced by adaptation to real and illusory unidirectional frequency sweeps
Keiko Masutomi1, Makio Kashino
1Department of Information Processing, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259, Yokohama, Kanagawa 226-8503 Japan. masutomi@u.ip.titech.ac.jp
Abstract:
It was examined whether illusory and real continuities induce the frequency-change aftereffect, in which repeated exposure to a frequency sweep results in a shift in the perceived frequency change direction of a subsequent test sound. The magnitude of the aftereffect for different types of adaptors ("real sweep," "illusory sweep," and "sweep with gap") was compared. Listeners judged the direction of a frequency change of the test sound and showed a significant aftereffect only for the "real sweep" adaptors. The results suggest that the illusory sweeps are processed after the stage of frequency-change detection.
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