运动抑制阻止了打字想象过程中的运动执行:来自动作模式转换范式的证据

IF 2.8 1区 心理学 Q1 PSYCHOLOGY, EXPERIMENTAL Cognition Pub Date : 2024-11-04 DOI:10.1016/j.cognition.2024.105997
Ladislas Nalborczyk , F.-Xavier Alario , Marieke Longcamp
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引用次数: 0

摘要

运动想象伴随着主观的多感官体验。这种感觉体验被认为是为执行和监控公开动作而开发的内部模型的部署结果。既然如此,为什么运动想象不会导致公开执行呢?有人提出,抑制机制可能会阻止想象中动作的执行,例如想象中的打字。为了验证这一假设,我们将实验与建模方法相结合。我们进行了一项实验,要求参与者(49 人)交替进行公开(执行)和隐蔽(想象)打字。我们预测,当当前试验之前是想象试验而不是执行试验时,运动抑制应导致更长的反应和运动时间。运动时间证实了这一预测,但反应时间没有证实。我们引入并拟合了一个运动想象的算法模型,以区分这些效应背后潜在的不同抑制机制。分析结果表明,运动抑制可能会影响潜在激活函数的不同方面(如激活函数的形状或运动执行阈值),从而对反应时间和运动时间产生不同的影响。总之,这些结果表明,打字想象涉及对与打字行为相关的运动指令的抑制。预注册、完整源代码和可重现分析可在 https://osf.io/y9a3k/ 上获取。
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Motor inhibition prevents motor execution during typing imagery: Evidence from an action-mode switching paradigm
Motor imagery is accompanied by a subjective multisensory experience. This sensory experience is thought to result from the deployment of internal models developed for the execution and monitoring of overt actions. If so, how is it that motor imagery does not lead to overt execution? It has been proposed that inhibitory mechanisms may prevent execution during imagined actions such as imagined typing. To test this hypothesis, we combined an experimental with a modelling approach. We conducted an experiment in which participants (N = 49) were asked to alternate between overt (executed) and covert (imagined) typing. We predicted that motor inhibition should lead to longer reaction and movement times when the current trial is preceded by an imagined vs. an executed trial. This prediction was borne out by movement times, but not by reaction times. We introduced and fitted an algorithmic model of motor imagery to disentangle potentially distinct inhibitory mechanisms underlying these effects. Results from this analysis suggest that motor inhibition may affect different aspects of the latent activation function (e.g., the shape of the activation function or the motor execution threshold) with distinct consequences on reaction times and movement times. Overall, these results suggest that typing imagery involves the inhibition of motor commands related to typing acts. Preregistration, complete source code, and reproducible analyses are available at https://osf.io/y9a3k/.
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来源期刊
Cognition
Cognition PSYCHOLOGY, EXPERIMENTAL-
CiteScore
6.40
自引率
5.90%
发文量
283
期刊介绍: Cognition is an international journal that publishes theoretical and experimental papers on the study of the mind. It covers a wide variety of subjects concerning all the different aspects of cognition, ranging from biological and experimental studies to formal analysis. Contributions from the fields of psychology, neuroscience, linguistics, computer science, mathematics, ethology and philosophy are welcome in this journal provided that they have some bearing on the functioning of the mind. In addition, the journal serves as a forum for discussion of social and political aspects of cognitive science.
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