不协调的主动头部旋转会提高视觉运动检测阈值。

IF 3.1 Q1 PSYCHOLOGY, BIOLOGICAL
Neuroscience of Consciousness Pub Date : 2024-05-16 eCollection Date: 2024-01-01 DOI:10.1093/nc/niae019
Kate Pickard, Matthew J Davidson, Sujin Kim, David Alais
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引用次数: 0

摘要

将视觉运动信号归属于其正确来源--无论是外部物体运动、自身运动,还是两者的某种组合--看似不费吹灰之力,但往往需要将复杂的运动信号网络拆分开来。现有文献主要关注平移运动(方向)或眼球运动,对于更广泛的自我运动(如头部主动旋转)对视觉运动感知的影响,还有很多需要学习的地方。本研究比较了视觉运动和头部转动方向一致或不一致的条件,研究了头部主动转动如何影响视觉运动检测阈值。受试者在旋转头部或保持静止不动的同时,使用带有集成头部运动记录的固定锁定虚拟现实显示屏来判断视觉运动刺激的方向。与静止状态相比,主动旋转头部状态下感知视觉运动的阈值更高,但在一致或不一致状态下没有发现差异。受试者还表现出明显的偏向性,即看到与头部旋转方向相同的视觉运动。总之,这些结果表明,主动头部旋转会提高视觉运动感知阈值,尤其是在视觉和主动前庭刺激不一致的情况下。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Incongruent active head rotations increase visual motion detection thresholds.

Attributing a visual motion signal to its correct source-be that external object motion, self-motion, or some combination of both-seems effortless, and yet often involves disentangling a complex web of motion signals. Existing literature focuses on either translational motion (heading) or eye movements, leaving much to be learnt about the influence of a wider range of self-motions, such as active head rotations, on visual motion perception. This study investigated how active head rotations affect visual motion detection thresholds, comparing conditions where visual motion and head-turn direction were either congruent or incongruent. Participants judged the direction of a visual motion stimulus while rotating their head or remaining stationary, using a fixation-locked Virtual Reality display with integrated head-movement recordings. Thresholds to perceive visual motion were higher in both active-head rotation conditions compared to stationary, though no differences were found between congruent or incongruent conditions. Participants also showed a significant bias to report seeing visual motion travelling in the same direction as the head rotation. Together, these results demonstrate active head rotations increase visual motion perceptual thresholds, particularly in cases of incongruent visual and active vestibular stimulation.

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来源期刊
Neuroscience of Consciousness
Neuroscience of Consciousness Psychology-Clinical Psychology
CiteScore
6.90
自引率
2.40%
发文量
16
审稿时长
19 weeks
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