头部转动时的闪光滞后效应：超越运动外推假说

心理科学进展 ›› 2019, Vol. 27 ›› Issue (suppl.): 19-19.

头部转动时的闪光滞后效应：超越运动外推假说

何鑫^a,b, 白建迎^a,c,d, 蒋毅^b,e,f, 张弢^b,e, 鲍敏^a,b,e

^a中国科学院心理研究所行为科学重点实验室,北京市朝阳区林萃路16号,中国,100101;
^b中国科学院大学心理学系,北京市石景山区玉泉路19号（甲）,中国,100049;
^c中国科学院新疆天文台,新疆乌鲁木齐市新市区科学一街150号,中国,830011;
^d中国科学院大学,北京市石景山区玉泉路19号（甲）,中国,100049;
^e中国科学院生物物理研究所脑与认知科学国家重点实验室,北京市朝阳区大屯路15号,中国,100101;
^f中国科学院脑科学与智能技术卓越创新中心,上海市岳阳路320号,中国,200031

出版日期:2019-08-26 发布日期:2022-03-21

The flash-lag effect during head rotation: Beyond the motion extrapolation hypothesis

Xin He^a,b, Jianying Bai^a,c,d, Yi Jiang^b,e,f, Tao Zhang^b,e, Min Bao^a,b,e

^aCAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, People's Republic of China;
^bDepartment of Psychology, University of Chinese Academy of Sciences, Beijing, People's Republic of China;
^cXinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, People's Republic of China;
^dUniversity of Chinese Academy of Sciences, Beijing, People's Republic of China;
^eState Key Laboratory of Brain and Cognitive Science, Beijing, People's Republic of China;
^fCAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai, People's Republic of China

Online:2019-08-26 Published:2022-03-21

摘要/Abstract

摘要： 目的：本研究检验视觉及前庭运动信号对头转动所致闪光滞后效应（FLE）的作用,并探究用运动外推假说解释的合理性。
方法：实验使用头戴显示器与实时运动传感器,被试水平转动头部。实验1：竖直参考棒在屏幕中央静止,或与头动等速反向运动;后者为模拟空间中静止刺激,视网膜运动完全来自头动。两条件下分别测量水平FLE并比较。实验2：使头动与竖直滚动的全视野光栅匹配,测量水平与竖直FLE。
结果：实验1两条件均有明显水平FLE,同向、幅度相近。实验2有显著竖直FLE,幅度弱于水平FLE。
结论：运动外推假说难以解释实验1刺激在空间静止时的水平FLE及实验2的竖直FLE。研究结果未支持其作为头转动所致FLE的解释;该FLE可能涉及前庭信号调节视觉运动加工。

关键词: 闪光滞后效应, 运动外推, 前庭, 头动

Abstract: PURPOSE: The present study examined the roles of vestibular and visual motion signals in the head-rotation-induced flash-lag effect (FLE), and tested the validity of the motion extrapolation hypothesis for this type of FLE.
METHODS: Participants kept rotating their heads in the horizontal plane during the experiments. Stimuli were presented on an HMD. A 3-Space Sensor, attached on top of the HMD, acquired the head motion data in real-time. In Experiment 1, subjects maintained a central fixation, while a vertical reference bar either remained stationary on the center of the screen or moved at the same speed as the observer's head rotation from one side of the screen to the other but in the opposite direction of the head rotation. The latter condition simulated a circumstance that the reference bar remained static in the environment with the retinal motion signal completely resulting from the head rotation. Horizontal FLEs were measured and compared between the two conditions. In Experiment 2, head rotation was associated with vertical drift of a full-field grating. Both horizontal and vertical FLEs were measured.
RESULTS: We found reliable horizontal FLE in Experiment 1 whether the reference bar was stationary or moving on the screen. Moreover, the FLEs in the two conditions were in the same direction, showing comparable magnitudes. In Experiment 2, there was a weak but significant vertical FLE, though its magnitude was greatly smaller than the horizontal FLE.
CONCLUSIONS: The motion extrapolation hypothesis predicts no horizontal FLE in Experiment 1 given that the reference bar is considered to be static in the environment. Besides, the hypothesis cannot explain the vertical FLE in Experiment 2. Taken together, the present findings do not support the motion extrapolation account for the FLE induced by head movement. Instead, the findings are discussed in relation to the modulation of vestibular signals on visual motion signal processing.

Key words: flash-lag effect, motion extrapolation, vestibular, head movement

何鑫, 白建迎, 蒋毅, 张弢, 鲍敏. (2019). 头部转动时的闪光滞后效应：超越运动外推假说. 心理科学进展 , 27(suppl.), 19-19.

Xin He, Jianying Bai, Yi Jiang, Tao Zhang, Min Bao. (2019). The flash-lag effect during head rotation: Beyond the motion extrapolation hypothesis. Advances in Psychological Science, 27(suppl.), 19-19.