History-dependent changes to distribution of dominance phases in multistable perception

Faculty/Professorship: General Psychology and Methodology  
Author(s): Pastukhov, Alexander  ; Styrnal, Malin; Carbon, Claus-Christian  
Title of the Journal: Journal of vision : an ARVO journal
ISSN: 1534-7362
Publisher Information: Rockville : ARVO
Year of publication: 2023
Volume: 23
Issue: 3
Pages: 1-15
Language(s): English
DOI: 10.1167/jov.23.3.16
Multistability – spontaneous switches of perception when viewing a stimulus compatible with several percepts – is often characterized by the distribution of durations of dominance phases. For continuous viewing conditions, these distributions are similar for various multistable displays and share two characteristic features: a Gamma-like distribution shape and dependence of dominance durations on the perceptual history. Both properties depend on a balance between self-adaptation (also conceptualized as a weakening stability prior) and noise. Prior experimental work and simulations that systematically manipulated displays showed that faster self-adaptation leads to a more “normal-like” distribution and, typically, to more regular dominance durations. We used a leaky integrator approach to estimate accumulated differences in self-adaptation between competing representations and used it as a predictor when fitting two parameters of a Gamma distribution independently. We confirmed earlier work showing that larger differences in self-adaptation led to a more “normal-like” distribution suggesting similar mechanisms that rely on the balance between self-adaptation and noise. However, these larger differences led to less regular dominance phases suggesting that longer times required for recovery from adaptation give noise more chances to induce a spontaneous switch. Our results also remind us that individual dominance phases are not “independent and identically distributed.”
GND Keywords: Multistabilität; Wahrnehmungswechsel
Keywords: visual perception, visual adaptation
DDC Classification: 150 Psychology  
RVK Classification: CP 2500   
Peer Reviewed: Ja
International Distribution: Ja
Open Access Journal: Ja
Type: Article
URI: https://fis.uni-bamberg.de/handle/uniba/58889
Release Date: 30. March 2023