Original Research ARTICLE
Self-motion Versus Environmental-motion Perception Following Rotational Vestibular Stimulation and Factors Modifying Them
- 1Institute of Neurobiology (BAS), Bulgaria
- 2University Hospital for Neurology and Psychiatry "Sveti Naum", Bulgaria
Motion perception following rotational vestibular stimulation is described either as a self-motion or as an environmental-motion. The purpose of the present study was to establish frequency of occurrence of both sensations in healthy humans; what other sensations they experience and how factors insinuation and visual cues modify them.
Twenty-four healthy subjects were rotated with constant velocity of 80°/s in four combinations of opened and closed eyes during the rotation and after a sudden stop. After the cessation of the rotation they reported their spontaneous or insinuated illusory motion.
During spontaneous perception after sudden cessation of rotation and with the subject’s eyes open, the illusory sensations of self- and environment-motion were almost equally presented. There was no simultaneous illusory perception of self-motion and environment-motion. Insinuation modified the perception of motion; presence or absence of visual cues prior to the cessation of the rotation and the presence or absence of visual cues immediately after the cessation of the rotation changed the motion sensation. There is a gender effect in motion perception. This finding might be of benefit in further exploring the gender difference in the susceptibility to motion sickness.
Keywords: self-motion, Environmental-motion, Perception, insinuation, vestibular, visual, gender
Received: 20 Sep 2018;
Accepted: 07 Feb 2019.
Edited by:Christian Van Nechel, Clinique des Vertiges, Belgium
Reviewed by:Aasef G. Shaikh, Case Western Reserve University, United States
Bernard Cohen, Icahn School of Medicine at Mount Sinai, United States
Copyright: © 2019 Kolev. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Prof. Ognyan I. Kolev, Institute of Neurobiology (BAS), Sofia, Sofia City, Bulgaria, firstname.lastname@example.org