Illusory discontinuity cannot be explained by simultaneous masking, because it appears even if the noise is as far as one octave away. The illusion is likely to be a novel form of informational masking (broadly defined as a degradation of auditory detection or discrimination of a signal embedded in a context of other similar sounds). Listeners strongly susceptible to illusory discontinuity do not perceive illusory auditory continuity. While illusory continuity restores perceptual continuity of obscured sounds, illusory discontinuity disrupts the perception even if the sound is indeed continuous. Illusory discontinuity is antagonistic with illusory continuity of tones (auditory filling-in). Longer sounds elicit weaker illusory discontinuity this effect may be related to better auditory segregation. The illusory discontinuity is strongest when the interrupting sound is short (50 ms).
The most susceptible listeners describe their sensations in terms of the sound actually containing a physical gap. It has been estimated that among young adults 24% are susceptible to illusory discontinuity. The illusion is perceived only by some listeners, but not by others, reflecting individual variation in hearing abilities. Illusory discontinuity is an auditory illusion in which a continuous ongoing sound becomes inaudible during a brief, non-masking noise. The tone sounds discontinuous to some listeners. Example of illusory discontinuity stimulus: continuous tone with spectrally remote noise.
JSTOR ( September 2014) ( Learn how and when to remove this template message)Įxample of illusory discontinuity stimulus: continuous tone with spectrally remote noise.Unsourced material may be challenged and removed.įind sources: "Illusory discontinuity" – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
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