Cortical Mechanisms of Multisensory Linear Self-motion Perception  

作　　者：Luxin Zhou Yong Gu 

机构地区：[1]CAS Center for Excellence in Brain Science and Intelligence Technology,Institute of Neuroscience,Chinese Academy of Sciences,Shanghai,200031,China [2]University of Chinese Academy of Sciences,Beijing,100049,China

出　　处：《Neuroscience Bulletin》2023年第1期125-137,共13页神经科学通报（英文版）

基　　金：supported by grants from the National Science and Technology Innovation 2030 Major Program(2022ZD0205000);the Strategic Priority Research Program of CAS(XDB32070000);the Shanghai Municipal Science and Technology Major Project(2018SHZDZX05);the Shanghai Academic Research Leader Program(21XD1404000).

摘　　要：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.

关 键 词：Multisensory integration Self-motion perception VESTIBULAR Optic flow 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]