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眼睛和手都可靠地定位体感官目标

Marion Naffrechoux^1,2, Eric Koun³, Frederic Volland³

¹Integrative Multisensory Perception Action and Cognition Team of the Lyon Neuroscience Research Center, INSERM U1028 CNRS U5292 University Lyon 1, 16 avenue du Doyen Lépine, Lyon, 69500, France. m.naffrechoux@gmail.com.

Experimental brain research

|September 28, 2024

概括

眼睛和手以不同的方式定位体感官目标,手表现出更好的水平准确性. 然而,这两个效应器都显示了相关的身体表征 (BR),这表明眼睛可以评估BR,即使是上肢运动问题.

科学领域:

神经科学是一个神经科学.
发动机控制器的控制器
人类的感知人类的感知

背景情况:

精确的运动依赖于精确的身体表现 (BR).
行为研究表明BR的扭曲,但作为读数的效应器可能会影响这些发现.
上肢主要用于探测BR,限制了对效应器特定扭曲的理解.

研究的目的:

为了比较眼睛和手效应器在健康人体内局部化体感目标的准确性.
为了确定眼睛和手效应器是否类似地探测身体表现 (BR).
调查身体表征中的潜在的特效因子扭曲.

主要方法:

26名健康参与者执行了两个局部化任务:自感和触觉.
参与者用眼睛或手部定位了看不见的目标.
线性混合模型被用来分析本地化错误.

主要成果:

与手动定位相比,眼部定位显示出更大的水平误差,但垂直误差是相似的.
尽管整体精度更好,但手动和眼部定位性能正相关.
定位精度受到两个效应器的目标位置的影响,对于肘部曲和手指定位而言,注意到了特定的效应.

结论:

手在眼睛上表现出卓越的水平精度,用于体感目标定位.
眼睛和手探测到的定位模式是相关的,并且具有共同的目标位置效应.
眼睛可以作为评估身体表现 (BR) 的可行的效应器,特别是当上肢运动控制受损时.

关键词:

机构代表机构的代表.手动指点手动指点的方法自己的感觉 (proprioception)萨卡德斯 (Saccades) 是一个神话.触觉感知是一种触觉感知.

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相关概念视频

Somatosensation

Somatosensation

The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.