Calalo Jan A, Ngo Truc T, Sullivan Seth R, Strand Kathryn, Buggeln John H, Lokesh Rakshith, Roth Adam M, Carter Michael J, Kurtzer Isaac L, Cashaback Joshua G A
Department of Mechanical Engineering, University of Delaware, Newark, Delaware 19711
Department of Biomedical Engineering, University of Delaware, Newark, Delaware 19711.
J Neurosci. 2025 Jul 30;45(31):e1913242025. doi: 10.1523/JNEUROSCI.1913-24.2025.
From navigating a crowded hallway to skiing down a treacherous hill, humans are constantly making decisions while moving. Insightful past work has provided a glimpse of decision deliberation at the moment of movement onset. Yet it is unknown whether ongoing deliberation can be expressed during movement, following movement onset and prior to any decision. Here we tested the idea that an ongoing deliberation continually influences motor processes-prior to a decision-directing online movements. The deliberation process was manipulated by having humans of either sex observe tokens that moved into a left or right target. Supporting our hypothesis, we found that lateral hand movements reflected deliberation, prior to a decision. We also found that a deliberation urgency signal, which more heavily weighs later evidence, was fundamental to predicting decisions and explains past movement behavior in a new light. Our paradigm promotes the expression of ongoing deliberation through movement, providing a powerful new window to understand the interplay between decision and action.
从在拥挤的走廊中穿行到在险峻的山坡上滑雪，人类在移动过程中不断做出决策。过去富有洞察力的研究让我们得以一窥运动开始瞬间的决策过程。然而，在运动开始后且在做出任何决策之前，持续的思考过程是否能在运动中表现出来，这一点尚不清楚。在此，我们测试了这样一种观点：在做出决策并指导在线运动之前，持续的思考过程会持续影响运动过程。我们通过让不同性别的人观察移入左或右目标的代币来操纵思考过程。支持我们的假设的是，我们发现，在做出决策之前，手部的横向运动反映了思考过程。我们还发现，一种更重视后期证据的思考紧迫性信号，对于预测决策至关重要，并从新的角度解释了过去的运动行为。我们的范式促进了通过运动来表达持续的思考过程，为理解决策与行动之间的相互作用提供了一个强大的新窗口。
