Neuroimaging evidence of visual-vestibular interaction accounting for perceptual mislocalization induced by head rotation

被引:0
|
作者
He, Xin [1 ]
Bao, Min [1 ,2 ,3 ]
机构
[1] Chinese Acad Sci, Inst Psychol, CAS Key Lab Behav Sci, Beijing, Peoples R China
[2] Univ Chinese Acad Sci, Dept Psychol, Beijing, Peoples R China
[3] State Key Lab Brain & Cognit Sci, Beijing, Peoples R China
基金
中国国家自然科学基金;
关键词
flash-lag effect; head rotation; visual-vestibular integration; hMT+; temporoparietal junction; functional near-infrared spectroscopy; TRANSCRANIAL MAGNETIC STIMULATION; CORTICAL AREA MST; FLASH-LAG; PROBABILISTIC ATLAS; PERCEIVED POSITION; MOVING-OBJECTS; MATLAB LIBRARY; MOTION AREA; BRAIN; CORTEX;
D O I
10.1117/1.NPh.11.1.015005
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Significance: A fleeting flash aligned vertically with an object remaining stationary in the head-centered space would be perceived as lagging behind the object during the observer's horizontal head rotation. This perceptual mislocalization is an illusion named head-rotation-induced flash-lag effect (hFLE). While many studies have investigated the neural mechanism of the classical visual FLE, the hFLE has been hardly investigated. Aim: We measured the cortical activity corresponding to the hFLE on participants experiencing passive head rotations using functional near-infrared spectroscopy. Approach: Participants were asked to judge the relative position of a flash to a fixed reference while being horizontally rotated or staying static in a swivel chair. Meanwhile, functional near-infrared spectroscopy signals were recorded in temporal-parietal areas. The flash duration was manipulated to provide control conditions. Results: Brain activity specific to the hFLE was found around the right middle/inferior temporal gyri, and bilateral supramarginal gyri and superior temporal gyri areas. The activation was positively correlated with the rotation velocity of the participant around the supramarginal gyrus and negatively related to the hFLE intensity around the middle temporal gyrus. Conclusions: These results suggest that the mechanism underlying the hFLE involves multiple aspects of visual-vestibular interactions including the processing of multisensory conflicts mediated by the temporoparietal junction and the modulation of vestibular signals on object position perception in the human middle temporal complex. (C) The Authors. Published by SPIE under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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页数:20
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