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.

运动计划会破坏短期记忆任务中的召回性能，表明两个进程共享公用工作记忆（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，我们将简单的或困难的记忆任务（消耗了不同数量的WM资源）与顺序的运动任务（打开抽屉列）组合在一起。测量了连续运动任务中的磁滞效应的大小，以替代运动计划重用的一部分。由存储任务创建的不同WM负载对运动计划重用和运动（重新）计划的部分没有影响，这支持了以下想法：运动计划可以优先访问WM。在言语记忆任务中没有新近度效应（可以更好地回忆起较晚的项目），但在空间任务中却没有。新近度通常归因于情节缓冲，即中央执行机构的非域特定存储。运动任务对新近度的特定领域干扰表明，需要重新评估第二个假设。