Cortical Correlates of the Simulated Viewpoint Oscillation Advantage for Vection. Kirollos, R., Allison, R. S., & Palmisano, S. A. Multisensory Research, 30(7-8):739-761, 2017.
Cortical Correlates of the Simulated Viewpoint Oscillation Advantage for Vection [link]-1  doi  abstract   bibtex   
Behavioural studies have consistently found stronger vection responses for oscillating, compared to smooth/constant, patterns of radial flow (the simulated viewpoint oscillation advantage for vection). Traditional accounts predict that simulated viewpoint oscillation should impair vection by increasing visual–vestibular conflicts in stationary observers (as this visual oscillation simulates selfaccelerations that should strongly stimulate the vestibular apparatus). However, support for increased vestibular activity during accelerating vection has been mixed in the brain imaging literature. This fMRI study examined BOLD activity in visual (cingulate sulcus visual area — CSv; medial temporal complex — MT+; V6; precuneus motion area — PcM) and vestibular regions (parieto-insular vestibular cortex — PIVC/posterior insular cortex — PIC; ventral intraparietal region — VIP) when stationary observers were exposed to vection-inducing optic flow (i.e., globally coherent oscillating and smooth self-motion displays) as well as two suitable control displays. In line with earlier studies in which no vection occurred, CSv and PIVC/PIC both showed significantly increased BOLD activity during oscillating global motion compared to the other motion conditions (although this effect was found for fewer subjects in PIVC/PIC). The increase in BOLD activity in PIVC/PIC during prolonged exposure to the oscillating (compared to smooth) patterns of global optical flow appears consistent with vestibular facilitation.
@article{Kirollos:sf,
	abstract = {Behavioural studies have consistently found stronger vection responses for oscillating, compared
to smooth/constant, patterns of radial flow (the simulated viewpoint oscillation advantage for vection).
Traditional accounts predict that simulated viewpoint oscillation should impair vection by
increasing visual--vestibular conflicts in stationary observers (as this visual oscillation simulates selfaccelerations
that should strongly stimulate the vestibular apparatus). However, support for increased
vestibular activity during accelerating vection has been mixed in the brain imaging literature. This
fMRI study examined BOLD activity in visual (cingulate sulcus visual area --- CSv; medial temporal
complex --- MT+; V6; precuneus motion area --- PcM) and vestibular regions (parieto-insular
vestibular cortex --- PIVC/posterior insular cortex --- PIC; ventral intraparietal region --- VIP) when
stationary observers were exposed to vection-inducing optic flow (i.e., globally coherent oscillating
and smooth self-motion displays) as well as two suitable control displays. In line with earlier studies
in which no vection occurred, CSv and PIVC/PIC both showed significantly increased BOLD activity
during oscillating global motion compared to the other motion conditions (although this effect was
found for fewer subjects in PIVC/PIC). The increase in BOLD activity in PIVC/PIC during prolonged
exposure to the oscillating (compared to smooth) patterns of global optical flow appears consistent
with vestibular facilitation.
},
	author = {Kirollos, R. and Allison, R. S. and Palmisano, S. A.},
	date-added = {2017-06-26 22:02:24 +0000},
	date-modified = {2018-01-02 15:42:33 +0000},
	doi = {10.1163/22134808-00002593},
	journal = {Multisensory Research},
	keywords = {Optic flow & Self Motion (also Locomotion & Aviation)},
	number = {7-8},
	pages = {739-761},
	title = {Cortical Correlates of the Simulated Viewpoint Oscillation Advantage for Vection},
	url-1 = {http://dx.doi.org/10.1163/22134808-00002593},
	volume = {30},
	year = {2017},
	url-1 = {https://doi.org/10.1163/22134808-00002593}}

Downloads: 0