Edouard Dendauw, Nathan J Evans, Gordon D Logan, Emmanuel Haffen, Djamila Bennabi, Thibault Gajdos, Mathieu Servant
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引用次数: 0
摘要
这篇文章介绍了一种关于决策、运动准备和运动执行的综合生物启发理论。该理论被正式表述为扩散模型的扩展,在该模型中,决策过程中扩散积累的证据被持续传递到大脑中准备响应的运动区域,并在那里被一种近似卡尔曼-布西滤波器的机制平滑化。由此产生的运动准备变量在到达激动剂肌肉之前会被门控,直到它超过特定的激活水平。我们在四项选择任务(运动感知、数字认知、识别记忆和词汇知识)中,通过肌电图连续探测反应激动剂的电活动,对这种门控级联扩散模型进行了测试。该模型对行为和肌电图数据进行了很好的定量解释,系统性优于之前的模型。这项工作代表了整合简单决策过程的一个进步,并为决策系统和运动系统之间的相互作用提供了新的启示。(PsycInfo Database Record (c) 2024 APA, 版权所有)。
The gated cascade diffusion model: An integrated theory of decision making, motor preparation, and motor execution.
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).
期刊介绍:
Psychological Review publishes articles that make important theoretical contributions to any area of scientific psychology, including systematic evaluation of alternative theories.