Phase-linking and the perceived motion during off-vertical axis rotation.

Biological cybernetics
Jan E HollyGin McCollum

Abstract

Human off-vertical axis rotation (OVAR) in the dark typically produces perceived motion about a cone, the amplitude of which changes as a function of frequency. This perception is commonly attributed to the fact that both the OVAR and the conical motion have a gravity vector that rotates about the subject. Little-known, however, is that this rotating-gravity explanation for perceived conical motion is inconsistent with basic observations about self-motion perception: (a) that the perceived vertical moves toward alignment with the gravito-inertial acceleration (GIA) and (b) that perceived translation arises from perceived linear acceleration, as derived from the portion of the GIA not associated with gravity. Mathematically proved in this article is the fact that during OVAR these properties imply mismatched phase of perceived tilt and translation, in contrast to the common perception of matched phases which correspond to conical motion with pivot at the bottom. This result demonstrates that an additional perceptual rule is required to explain perception in OVAR. This study investigates, both analytically and computationally, the phase relationship between tilt and translation at different stimulus rates-slow (45 degrees /s) and...Continue Reading

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Citations

Jun 11, 2015·Journal of Mathematical Biology·Thomas ChartrandRichard D Boyle
Jan 15, 2013·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·W Geoffrey WrightEmily A Keshner
Nov 5, 2016·Journal of Vestibular Research : Equilibrium & Orientation·Jan E HollyChiran S Bhandari
Jan 28, 2022·Scientific Reports·Gilles ClémentScott J Wood

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