This article introduces an integrated and biologically inspired theory of decision making, motor preparation, and motor execution. The theory is formalized as an extension of the diffusion model, in which diffusive accumulated evidence from the decision-making process is continuously conveyed to motor areas of the brain that prepare the response, where it is smoothed by a mechanism that approximates a Kalman-Bucy filter. The resulting motor preparation variable is gated prior to reaching agonist muscles until it exceeds a particular level of activation. We tested this gated cascade diffusion model by continuously probing the electrical activity of the response agonists through electromyography in four choice tasks that span a variety of domains in cognitive sciences, namely motion perception, numerical cognition, recognition memory, and lexical knowledge. The model provided a good quantitative account of behavioral and electromyographic data and systematically outperformed previous models. This work represents an advance in the integration of processes involved in simple decisions and sheds new light on the interplay between decision and motor systems. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

中文翻译：

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门级联扩散模型：决策、运动准备和运动执行的综合理论。


本文介绍了一种综合的、受生物学启发的决策、运动准备和运动执行理论。该理论被形式化为扩散模型的延伸，在该模型中，决策过程中扩散积累的证据被不断地传送到准备反应的大脑运动区域，并通过近似卡尔曼-布西的机制进行平滑处理。筛选。由此产生的运动准备变量在到达主动肌之前被门控，直到它超过特定的激活水平。我们通过肌电图在跨越认知科学各个领域的四个选择任务中连续探测反应激动剂的电活动来测试这种门控级联扩散模型，即运动感知、数字认知、识别记忆和词汇知识。该模型提供了行为和肌电图数据的良好定量解释，并且系统地优于以前的模型。这项工作代表了简单决策所涉及的流程集成的进步，并为决策和运动系统之间的相互作用提供了新的线索。 （PsycInfo 数据库记录 (c) 2024 APA，保留所有权利）。