Perceived temporal asynchrony between sinusoidally modulated luminance and depth
De Weerd, Peter
MetadataShow full item record
Citation (published version)Gojko Zaric, Arash Yazdanbakhsh, Shigeaki Nishina, Peter De Weerd, Takeo Watanabe. 2015. "Perceived temporal asynchrony between sinusoidally modulated luminance and depth." JOURNAL OF VISION, Volume 15, Issue 15, pp. ? - ? (11). https://doi.org/10.1167/15.15.13
Simultaneously presented visual events lead to temporally asynchronous percepts. This has led some researchers to conclude that the asynchronous experience is a manifestation of differences in neural processing time for different visual attributes. Others, however, have suggested that the asynchronous experience is due to differences in temporal markers for changes of different visual attributes. Here, two sets of bars were presented, one to each eye. Either the bars were moving or their luminance was gradually changing. Bars moved horizontally in counterphase at low frequencies along short trajectories and were presented stereoscopically, such that the horizontal movements were perceived as back-and-forth motion on a sagittal plane, or monocularly to a dominant eye, preserving a perception of the horizontal movements on a frontal plane. In a control condition, bars were stationary and their luminance was modulated. The changes in stimulus speed or luminance occurred sinusoidally. When asked to adjust the phase of one stimulus to the other to achieve synchronous perception, participants showed a constant phase offset at the lowest frequencies used. Given the absence of abrupt transitions and the presence of similar gradual turning points in our stimuli to control for attentional effects, it can be concluded that asynchronous percepts in multimodal stimuli may at least in part be a manifestation of difference in neural processing time of visual attributes rather than solely a difference in the temporal markers (transitions versus turning points).
Showing items related by title, author, creator and subject.
Kelly, Frank; Grossberg, Stephen (Boston University Center for Adaptive Systems and Department of Cognitive and Neural Systems, 1998-07)This article develops the FACADE theory of three-dimensional (3-D) vision to simulate data concerning how two-dimensional (2-D) pictures give rise to 3-D percepts of occluded and occluding surfaces. The theory suggests how ...
Neural models of inter-cortical networks in the primate visual system for navigation, attention, path perception, and static and kinetic figure-ground perception Layton, Oliver W. (2013)Vision provides the primary means by which many animals distinguish foreground objects from their background and coordinate locomotion through complex environments. The present thesis focuses on mechanisms within the visual ...
Comparing instructor self-perception versus student perceptions using the same teaching evaluation instrument: a study of computer science courses in an urban master's degree program Naparstek, Laurie Schwartz (Boston University, 2005)This study compares instructor self-perceptions with student perceptions of teaching quality using the same 16-item evaluation instrument. Three hypotheses were investigated: (1) Instructors' self-evaluations will be higher ...