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视觉背景影响通过皮质内微刺激引起的触觉感觉的感知时间:两名参与者的案例研究

Isabelle A Rosenthal^1,2,3, Luke Bashford^1,2,4, David Bjånes^1,2

¹Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, United States.

Journal of neurophysiology

|October 8, 2025

概括

视觉背景影响来自大脑机器接口 (BMI) 的人工触觉感觉. 这项研究表明,视觉线索改变了感知到的皮质内微刺激 (ICMS) 的时间和质量,这对现实世界BMI功能至关重要.

科学领域:

神经科学是一个神经科学.
生物医学工程生物医学工程
人与计算机的交互

背景情况:

皮层内微刺激 (ICMS) 为大脑机器接口 (BMI) 提供触觉反.
了解ICMS与视觉的多感官集成对于现实世界BMI应用至关重要.
关于视觉背景如何影响ICMS感知的知识有限.

研究的目的:

研究ICMS引起的触觉感知与视觉信息的整合.
确定视觉背景和刺激时间如何影响ICMS的感知.
在体感皮质中评估ICMS期间视觉信息的神经表现.

主要方法:

在不同的时间间隔向两个四肢的参与者提供ICMS和视觉刺激.
操纵视觉上下文 (现实与抽象) 和ICMS电流幅度.
在特定试验期间,从主要体感皮层 (S1) 记录的神经活动.

主要成果:

视觉背景显著影响了ICMS的定性体验和时间绑定.
与抽象条件相比,现实的视觉条件增加了同时感知的可能性.
时间绑定窗口峰值始终偏移,表明多感官集成中的潜在时间错位.
主要体感皮层 (S1) 活动反映了与ICMS相关的视觉信息,跨越不同的视觉背景.

结论:

视觉上下文在塑造人造触觉感觉的感知方面发挥着至关重要的作用.
ICMS感知的时间和质量受到并发视觉信息的影响.
这些发现对于开发有效的大脑机器接口至关重要,为触觉障碍患者提供自然感官反.

关键词:

大脑机器界面是大脑机器界面.皮层内微刺激是一种内皮层微刺激.多感应集成的多感应集成身体的感觉和身体的感觉.视觉视觉视觉视觉视觉视觉

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