Effects of Motion Imagery and Motion Perception on Subsequent Conscious Perception
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1
University of New South Wales, School of Psychology, Australia
The current study aimed to find out how motion imagery and motion perception influence subsequent perceptual dominance in motion binocular rivalry (BR). Participants were instructed to report the dominant direction of motion in a BR stimulus after voluntarily imagining or passively viewing moving dots in one of the two directions presented in BR stimulus.
For Experiment 1, participants imagined left or right motion for 7 s according to a prior letter cue. There were three conditions during the imagery period: 1) dark background; 2) full luminance background; and 3) 7Hz luminance flicker background. Results showed that imagery primed motion perception in BR for all the three conditions greater than chance, although priming in full luminance background condition was significantly lower than in the dark background condition.
Experiment 2 tested the retinotopy of motion imagery. Motion imagery was performed within a given area, either on the left or right side of the central fixation for 7s, and motion BR was presented at the same or opposite location. Unlike imagery for colour or orientation, significant priming effects were found in both conditions: motion imagery had global effects on BR perception.
In Experiment 3, participants were presented with motion rivalry after passively viewing motion stimuli at different dot contrasts for 4 s. High-contrast motion perception produced a strong suppression effect on subsequent BR, although unlike weak colour or orientation stimuli, low contrast perception did not lead to BR priming.
These data showed that motion imagery can bias the dominance of subsequent motion BR. However, unlike colour and orientation imagery, this effect was only weakly affected by background luminance and was not location-specific. Interestingly, motion perception only led to a suppressive effect on motion BR and not a facilitative priming effect like imagery.
Keywords:
Motion Perception,
Binocular Rivalry,
retinotopy,
Mental Imagery,
motion imagery
Conference:
XII International Conference on Cognitive Neuroscience (ICON-XII), Brisbane, Queensland, Australia, 27 Jul - 31 Jul, 2014.
Presentation Type:
Poster
Topic:
Sensation and Perception
Citation:
Chang
S and
Pearson
J
(2015). Effects of Motion Imagery and Motion Perception on Subsequent Conscious Perception.
Conference Abstract:
XII International Conference on Cognitive Neuroscience (ICON-XII).
doi: 10.3389/conf.fnhum.2015.217.00094
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Received:
19 Feb 2015;
Published Online:
24 Apr 2015.
*
Correspondence:
Dr. Joel Pearson, University of New South Wales, School of Psychology, Sydney, Australia, jpearson@unsw.edu.au