Multisensory perception: effects of self-motion and orientation

多感官知觉：自我运动和方向的影响

• 批准号: RGPIN-2020-06093
• 负责人: Harris, Laurence
• 金额: $ 4.01万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=766061
• 关键词: Multisensory; perception; effects; self; motion

You are driving and suddenly there is a flash and a bang on the sidewalk. You crane your neck in that direction and assess whether you need to adjust your driving in response to the event. This project investigates how you localize objects and events perceived through the different senses while you are moving. In order to fully understand this apparently straightforward act, we need to understand how you integrate sensory information to inform yourself about your motion, and how you use this information to update your perception of the location of objects in the scene relative to your moving self and to distinguish motion of an object due to your own movement from any external motion. I will use a motion platform to create passively and actively controlled movements of an observer, and a Tumbling Room that can alter the relationship between the perceived and actual direction of gravity together with virtual reality simulations and other stimuli to expose, quantify and model the errors that we make while doing these things. The perceived positions of real and virtual visual, auditory and tactile stimuli will be measured as well as the perception of the observer's self-motion and of the observer's own perceived body dimensions. Novel aspects include the use of multiple directions of movement and the use of multisensory eccentric stimuli. My other lines of research, funded elsewhere, will enhance this research program using measurements from astronauts on the International Space Station, a human centrifuge, and parabolic microgravity flights. To whom the research is important: We know very little about how we localize multisensory events while moving, especially during off-horizontal motion, despite the fact that even forward walking involves sideways and vertical motion of the head. Practical applications of my results will include informing human factors design in driving and flying for improving the virtual reality experience in real gaming. Understanding the (mis-) perception of the position and shape of our own bodies may also help in cases where people have distorted images of their body. Anticipated outcome: We expect to show that vertical and horizontal self-motion have different consequences on perceived localization and that locations perceived through different senses are affected differently by a given pattern of self-motion. We expect that orientation relative to gravity will affect the perception of heading and the perceived dimensions of your own body. Benefits to the research field and Canada: These studies will transform basic perceptual research by quantifying the unexpected role of the motion of the body in multiple aspects of perception. They will inform human factor design in driving and aviation. The exceptional training opportunities offered by my lab and associated training grants will help create the Canadian scientists of tomorrow.

你正在开车，突然人行道上有一道闪光和一声巨响。你朝那个方向伸长脖子，评估你是否需要调整你的驾驶以应对事件。这个项目调查你在移动时如何定位通过不同感官感知到的物体和事件。为了完全理解这一明显简单的行为，我们需要了解你如何整合感官信息来告知自己你的运动，以及你如何使用这些信息来更新你对场景中物体相对于你运动自我的位置的感知，并区分由于你自己的运动而导致的物体运动和任何外部运动。我将使用一个运动平台来创建被动和主动控制的观察者的运动，以及一个可以改变感知到的和实际的重力方向之间的关系的翻滚房间，以及虚拟现实模拟和其他刺激来暴露、量化和模拟我们在做这些事情时所犯的错误。将测量真实和虚拟的视觉、听觉和触觉刺激的感知位置，以及观察者的自我运动和观察者自己感知的身体尺寸的感知。新颖的方面包括使用多个运动方向和使用多感觉偏心刺激。我在其他地方资助的其他研究项目将利用国际空间站宇航员的测量结果、人体离心机和抛物线微重力飞行来加强这一研究计划。这项研究对谁来说很重要：我们对运动时如何定位多感官事件知之甚少，特别是在非水平运动时，尽管即使向前走也会涉及头部的侧向和垂直运动。我的成果的实际应用将包括在驾驶和飞行中告知人的因素设计，以改善真实游戏中的虚拟现实体验。了解(错误的)感知我们自己身体的位置和形状也可能有助于人们扭曲自己的身体图像。预期结果：我们期望表明，垂直和水平自我运动对知觉定位有不同的影响，通过不同感觉感知的位置受到给定自我运动模式的不同影响。我们预计，相对于重力的方位会影响对航向的感知和你自己身体的感知尺寸。对研究领域和加拿大的好处：这些研究将通过量化身体运动在感知的多个方面的意想不到的作用来改变基本的感知研究。他们将在驾驶和航空方面提供人的因素设计。我的实验室提供的特殊培训机会和相关的培训资助将有助于培养明天的加拿大科学家。