Cortical Mechanisms of Multisensory Linear Self-motion Perception.
10.1007/s12264-022-00916-8
- Author:
Luxin ZHOU
1
;
Yong GU
2
Author Information
1. CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Neuroscience, Chinese Academy of Sciences, Shanghai, 200031, China.
2. CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Neuroscience, Chinese Academy of Sciences, Shanghai, 200031, China. guyong@ion.ac.cn.
- Publication Type:Review
- Keywords:
Multisensory integration;
Optic flow;
Self-motion perception;
Vestibular
- MeSH:
Animals;
Humans;
Motion Perception/physiology*;
Bayes Theorem;
Optic Flow;
Cues;
Vestibule, Labyrinth/physiology*;
Photic Stimulation;
Visual Perception/physiology*
- From:
Neuroscience Bulletin
2023;39(1):125-137
- CountryChina
- Language:English
-
Abstract:
Accurate self-motion perception, which is critical for organisms to survive, is a process involving multiple sensory cues. The two most powerful cues are visual (optic flow) and vestibular (inertial motion). Psychophysical studies have indicated that humans and nonhuman primates integrate the two cues to improve the estimation of self-motion direction, often in a statistically Bayesian-optimal way. In the last decade, single-unit recordings in awake, behaving animals have provided valuable neurophysiological data with a high spatial and temporal resolution, giving insight into possible neural mechanisms underlying multisensory self-motion perception. Here, we review these findings, along with new evidence from the most recent studies focusing on the temporal dynamics of signals in different modalities. We show that, in light of new data, conventional thoughts about the cortical mechanisms underlying visuo-vestibular integration for linear self-motion are challenged. We propose that different temporal component signals may mediate different functions, a possibility that requires future studies.
