Feature (Un)Binding and Retrieval in Action Discarding

BRAC框架假设计划行动包括对相应行动的感知特征的临时绑定。这种集成的特征表示称为动作文件。本项目研究在动作丢弃过程中如何修改动作文件。操作丢弃可能由于不同的原因而发生，例如当最初计划的操作不再需要时，或者必须在执行过程中保留，或者必须在执行时终止。这种丢弃可以以不同的方式解释，例如抑制单个动作文件，或对传出活动的一般阻塞，或作为动作特征的解除绑定。这些模型对丢弃某个动作如何影响其他功能重叠动作的性能做出了不同的预测。因此，我们将在实验中测试这些模型，在实验中，参与者计划在不同的时间点必须放弃的某个动作。另一个功能重叠操作中的性能将表明初始操作文件如何通过丢弃而改变。在评估表现的同时，我们将记录脑电图（EEG）。我们将通过分析主要基于时频分解脑电图活动和多变量模式分析的指示性脑电图参数来支持行为证据。总的来说，这个项目将通过观察BRAC核心机制的抑制过程并揭示其神经生理学相关性来指定BRAC框架。

The BRAC framework assumes that planning an action comprises of the temporary binding of the perceptual features of the corresponding action. Such integrated feature representations are called action files. This project studies how action files are amended in action discarding. Action discarding can occur for different reasons, such as when an initially planned action is no more needed, or must be withheld on its way to execution, or must be terminated while being carried out. Such discarding can be construed in different ways such as inhibition of individual actions files, or general blocking of efferent activities, or as unbinding of the action’s features. These models make different predictions about how discarding a certain action impacts performance of other, feature-overlapping, actions. Consequently, we will test these models in experiments in which participants plan a certain action which has to be discarded at varying points in time. Performance in another feature-overlapping action will indicate how the initial action file has become altered by discarding. On top of assessing performance we will record electroencephalogram (EEG). We will bolster behavioural evidence by analysing indicative EEG parameters primarily based on time-frequency decomposed EEG activity and multivariate pattern analyses. Altogether this project will specify the BRAC framework by looking at inhibitory processes through the lens of BRACs core mechanisms and by revealing their neurophysiological correlates.