Schütz Christoph, Schack Thomas
Faculty of Psychology and Sports Science, Bielefeld University, Bielefeld, Germany.
Faculty of Psychology and Sports Science, Bielefeld University, Bielefeld, Germany; Cognitive Interaction Technology, Center of Excellence, Bielefeld University, Bielefeld, Germany; CoR-Lab, Research Institute for Cognition and Robotics, Bielefeld University, Bielefeld, Germany.
Acta Psychol (Amst). 2020 Jul;208:103091. doi: 10.1016/j.actpsy.2020.103091. Epub 2020 May 30.
Movement planning disrupts the recall performance in a short term memory task, indicating that both processes share common working memory (WM) resources. In the current study, we tested whether this interference was bidirectional. To this end, we combined an easy or a difficult memory task (depleting different amounts of WM resources) with a sequential motor task (opening a column of drawers). The size of the hysteresis effect in the sequential motor task was measured as a proxy for the fraction of motor plan reuse. The different WM loads created by the memory task had no effect on the fractions of motor plan reuse and motor (re-)planning, which supports the idea that motor planning has priority access to WM. A recency effect (better recall of late items) was absent in a verbal memory task but present in a spatial one. Recency is commonly attributed to the episodic buffer, a non-domain-specific storage of the central executive. The domain-specific interference of the motor task with recency indicates that the second assumption needs to be reevaluated.
运动规划会干扰短期记忆任务中的回忆表现，这表明这两个过程共享共同的工作记忆（WM）资源。在当前的研究中，我们测试了这种干扰是否是双向的。为此，我们将一个简单或困难的记忆任务（消耗不同数量的WM资源）与一个顺序运动任务（打开一排抽屉）相结合。顺序运动任务中的滞后效应大小被测量作为运动计划重用比例的代表。记忆任务产生的不同WM负荷对运动计划重用和运动（重新）规划的比例没有影响，这支持了运动规划优先访问WM的观点。言语记忆任务中不存在近因效应（对近期项目的更好回忆），但空间记忆任务中存在。近因效应通常归因于情景缓冲器，即中央执行系统的非领域特定存储。运动任务对近因效应的领域特定干扰表明第二个假设需要重新评估。
