Journal
MULTISENSORY RESEARCH
Volume 30, Issue 1, Pages 65-90Publisher
BRILL
DOI: 10.1163/22134808-00002545
Keywords
Vection; self-motion; vestibular stimulation; sensory mismatch; multisensory integration
Categories
Funding
- Canadian Natural Sciences and Engineering Research Council (NSERC) Collaborative Research and Training Experience Program (CREATE)
- Deutsche Forschungsgemeinschaft (DFG) International Research Training Group (IRTG)
- NSERC
Ask authors/readers for more resources
Studies of the illusory sense of self-motion elicited by a moving visual surround (`vection') have revealed key insights about how sensory information is integrated. Vection usually occurs after a delay of several seconds following visual motion onset, whereas self-motion in the natural environment is perceived immediately. It has been suggested that this latency relates to the sensory mismatch between visual and vestibular signals at motion onset. Here, we tested three techniques with the potential to reduce sensory mismatch in order to shorten vection onset latency: noisy galvanic vestibular stimulation (GVS) and bone conducted vibration (BCV) at the mastoid processes, and body vibration applied to the lower back. In Experiment 1, we examined vection latency for wide field visual rotations about the roll axis and applied a burst of stimulation at the start of visual motion. Both GVS and BCV reduced vection latency by two seconds compared to the control condition, whereas body vibration had no effect on latency. In Experiment 2, the visual stimulus rotated about the pitch, roll, or yaw axis and we found a similar facilitation of vection by both BCV and GVS in each case. In a control experiment, we confirmed that air-conducted sound administered through headphones was not sufficient to reduce vection onset latency. Together the results suggest that noisy vestibular stimulation facilitates vection, likely due to an upweighting of visual information caused by a reduction in vestibular sensory reliability.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available