Multisensory interactions and the representation of the body in the brain

多感官相互作用和身体在大脑中的表征

• 批准号: RGPIN-2015-05953
• 负责人: Harris, Laurence
• 金额: $ 3.57万
• 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: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=590744
• 关键词: Multisensory; interactions; representation; body; brain

The senses interact and complement each other to provide reliable sensory information about the external and internal world. The main objectives of my research program are (1) to determine how visual, auditory and vestibular information are combined to provide reliable cues to body orientation; experiments will involve novel investigations into the contributions of extremely peripheral vision on orientation and self-motion perception while sitting and standing; (2) to determine the coding and flexibility of body representation and its effects on sensory processing; experiments will involve psychophysical measures of perceived body size and the location of touch and how these perceptions can be altered by experience; and (3) to determine the contribution of sensory input to the sense of body ownership; we have developed the first quantitative estimate of the perception of body ownership; experiments will include disrupting the grounding influence of the vestibular system and creating artificial links between visual and tactile cues to enhance the projection of the self into video images. The common element to these three themes is to quantify the emerging central role of the body in many aspects of perception.

这些感官相互作用并相互补充，以提供关于外部和内部世界的可靠感觉信息。我的研究计划的主要目标是(1)确定视觉、听觉和前庭信息是如何结合在一起的，为身体定向提供可靠的线索；实验将涉及对坐着和站着时极端边缘视觉对定向和自我运动感知的贡献的新调查；(2)确定身体表征的编码和灵活性及其对感觉加工的影响；实验将涉及感知身体大小和触摸位置的心理物理测量，以及这些感知如何被经验改变；以及(3)确定感觉输入对身体所有权感觉的贡献；我们开发了对身体所有权感知的第一个定量估计；实验将包括破坏前庭系统的固定影响，并在视觉和触觉线索之间建立人工链接，以增强自我在视频图像中的投影。这三个主题的共同要素是量化身体在感知的许多方面所扮演的新兴中心角色。