Visual and vestibular impacts on tactile remapping: an exploration of reference frames and response demands.

视觉和前庭对触觉重新映射的影响：对参考框架和响应需求的探索。

• 批准号: RGPIN-2016-06112
• 负责人: Shore, David
• 金额: $ 2.26万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=631124
• 关键词: Visual; vestibular; impacts; tactile; remapping

Perceiving the location of a touched object seems like a simple task that comes automatically with the tactile sensation; yet, integration of multiple sources of information is required. The sensation at the end of your finger must be integrated with the posture of your arm, the position of your body, and the information from your eyes. Transforming the tactile sense from the skin’s surface to provide a location in space external to the body is termed tactile remapping. In the present project we use the tactile temporal order judgment (TOJ) task to explore the remapping processes. When the hands are placed across the body midline a profound deficit is observed—changes in the size of deficit are informative about how the brain remaps internal representations of tactile stimuli to an external representation.

感知被触摸物体的位置似乎是一项简单的任务，它自动伴随着触觉而来；然而，需要集成多个信息源。手指末端的感觉必须与手臂的姿势、身体的位置和眼睛的信息相结合。将皮肤表面的触觉转换为身体外部空间的位置被称为触觉重映射。在本项目中，我们使用触觉时间顺序判断（TOJ）任务来探索重映射过程。当把手放在身体中线上时，观察到一个严重的缺陷——缺陷大小的变化提供了关于大脑如何将触觉刺激的内部表征重新映射到外部表征的信息。