title: Frequency-change aftereffect produced by adaptation to real and illusory unidirectional frequency sweeps.
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.
authors.affiliation: 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
authors.forename: Keiko
authors.initials: K
authors.lastname: Masutomi
authors.forename: Makio
authors.initials: M
authors.lastname: Kashino
mesh_terms: D000161:Acoustic Stimulation; D000223:Adaptation, Psychological; D000328:Adult; D001288:Attention; D001307:Auditory Perception; D005260:Female; D006801:Humans; D007088:Illusions; D008297:Male; D009622:Noise; D010897:Pitch Discrimination; D011571:Psychoacoustics; D021641:Recognition, Psychology; D013018:Sound Spectrography