Siedenburg, Kai (2018) Timbral Shepard-illusion reveals ambiguity and context sensitivity of brightness perception. The Journal of the Acoustical Society of America, 143 (2). EL93-EL98. ISSN 0001-4966

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Abstract

Recent research has described strong effects of prior context on the perception of ambiguous pitch shifts of Shepard tones [Chambers, Akram, Adam, Pelofi, Sahani, Shamma, and Pressnitzer (2017). Nat. Commun. 8, 15027]. Here, similar effects are demonstrated for brightness shift judgments of harmonic complexes with cyclic spectral envelope components and fixed fundamental frequency. It is shown that frequency shifts of the envelopes are perceived as systematic shifts of brightness. Analogous to the work of Chambers et al., the perceptual ambiguity of half-octave shifts resolves with the presentation of prior context tones. These results constitute a context effect for the perceptual processing of spectral envelope shifts and indicate so-far unknown commonalities between pitch and timbre perception.

Item Type:	Article
Additional Information:	Publiziert mit Hilfe des DFG-geförderten Open Access-Publikationsfonds der Carl von Ossietzky Universität Oldenburg.
Subjects:	Science and mathematics > Physics Technology, medicine, applied sciences > Medicine and health
Divisions:	Faculty of Medicine and Health Sciences > Department of Medical Physics and Acoustics
Date Deposited:	02 Aug 2018 07:59
Last Modified:	02 Aug 2018 07:59
URI:	https://oops.uni-oldenburg.de/id/eprint/3676
URN:	urn:nbn:de:gbv:715-oops-37577
DOI:	10.1121/1.5022983
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