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illusory discontinuity
Illusory discontinuity is an auditory illusion in which a continuous ongoing sound becomes inaudible during a brief, non-masking noise. The illusion is perceived only by some listeners, but not by others, reflecting individual variation in hearing abilities. It has been estimated that among young adults 24% are susceptible to illusory discontinuity.〔Vinnik E, Itskov PM, Balaban E (2011). "I (Individual differences in sound-in-noise perception are related to the strength of short-latency neural responses to noise )." PLoS One. 6(2): e17266. . PMID 21387016〕 The most susceptible listeners describe their sensations in terms of the sound actually containing a physical gap.
The illusory discontinuity is strongest when the interrupting sound is short (50ms). Longer sounds elicit weaker illusory discontinuity; this effect may be related to better auditory segregation.〔(Sounds in noise: Behavioral and neural studies of illusory continuity and discontinuity. Vinnik, Ekaterina PhD thesis, SISSA, 2009-11-02 )〕
== Relation to other auditory illusions ==
Illusory discontinuity is antagonistic with illusory continuity of tones (auditory filling-in). While illusory continuity restores perceptual continuity of obscured sounds, illusory discontinuity disrupts the perception even if the sound is indeed continuous. Listeners strongly susceptible to illusory discontinuity do not perceive illusory auditory continuity .
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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