Frequency-change aftereffect produced by adaptation to real and illusory unidirectional frequency sweeps

Keiko Masutomi; Makio Kashino

doi:10.1121/1.4807304

Frequency-change aftereffect produced by adaptation to real and illusory unidirectional frequency sweeps

J Acoust Soc Am. 2013 Jul;134(1):EL14-8. doi: 10.1121/1.4807304.

Authors

Keiko Masutomi¹, Makio Kashino

Affiliation

¹ Department 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

PMID: 23862900
DOI: 10.1121/1.4807304

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.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Acoustic Stimulation
Adaptation, Psychological*
Adult
Attention*
Auditory Perception*
Female
Humans
Illusions*
Male
Noise*
Pitch Discrimination*
Psychoacoustics
Recognition, Psychology
Sound Spectrography