MacNeil Raymond R, Enns James T
Department of Psychology, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
Vision (Basel). 2024 Sep 26;8(4):58. doi: 10.3390/vision8040058.
Pantomimes are human actions that simulate ideas, objects, and events, commonly used in conversation, performance art, and gesture-based interfaces for computing and controlling robots. Yet, their underlying neurocognitive mechanisms are not well understood. In this review, we examine pantomimes through two parallel lines of research: (1) the two visual systems (TVS) framework for visually guided action, and (2) the neuropsychological literature on limb apraxia. Historically, the TVS framework has considered pantomime actions as expressions of conscious perceptual processing in the ventral stream, but an emerging view is that they are jointly influenced by ventral and dorsal stream processing. Within the apraxia literature, pantomimes were historically viewed as learned motor schemas, but there is growing recognition that they include creative and improvised actions. Both literatures now recognize that pantomimes are often created spontaneously, sometimes drawing on memory and always requiring online cognitive control. By highlighting this convergence of ideas, we aim to encourage greater collaboration across these two research areas, in an effort to better understand these uniquely human behaviors.
手势动作是对想法、物体和事件进行模拟的人类动作，常用于对话、表演艺术以及基于手势的计算和机器人控制界面中。然而，其潜在的神经认知机制尚未得到充分理解。在本综述中，我们通过两条平行的研究路线来审视手势动作：（1）用于视觉引导动作的双视觉系统（TVS）框架，以及（2）关于肢体失用症的神经心理学文献。从历史上看，TVS框架将手势动作视为腹侧流中意识性感知处理的表达，但一种新出现的观点认为，它们受到腹侧流和背侧流处理的共同影响。在失用症文献中，手势动作在历史上被视为习得的运动模式，但现在越来越认识到它们包括创造性和即兴动作。这两类文献现在都认识到，手势动作通常是自发产生的，有时借助记忆，并且始终需要在线认知控制。通过强调这些观点的趋同性，我们旨在鼓励这两个研究领域之间加强合作，以便更好地理解这些独特的人类行为。
