Ideomotor contraints of multitasking

当人们试图同时执行多个动作时，与单独执行每个动作相比，这通常会导致性能下降。这种现象通常归因于响应选择瓶颈。然而，近年来的研究表明，两个动作的协调性受到这些动作带来的感官后果的强烈影响。这一观察结果与动作控制的意念运动模型相一致，该模型认为动作选择中对动作效果的预期起着至关重要的作用。研究计划提出了一个基于记忆的模型，试图将这些观察结果结合在一起。它假定一个有限的效果检索瓶颈。该项目旨在通过经典双任务设置（如心理不应期范式）中行为后果的系统变化来测试该模型的预测。此外，它还测试了关于动作控制和图像特异性的预测。该项目将有助于整合传统的面向阶段的信息处理模型和思想运动理论的概念。

When humans try to simultaneously carry out more than one action, this typically leads to a drop of performance, compared to carrying out each action alone. This observation is commonly ascribed to a response selection bottleneck. Research in recent years has shown, however, that the reconcilability of two actions is strongly affected by the sensory consequences that these actions bring about. This observation corresponds to ideomotor models of action control that ascribe a crucial function to the anticipation of action effects in action selection. The research proposal suggests a memory-based model, which tries to bring together these observations together. It assumes a limited effect-retrieval bottleneck. The project aims to test predictions of the model by systematic variations of action consequences in classical dual-task settings such as the psychological refractory period paradigm. Moreover, it tests predictions regarding the specificity of action control and imagery. The project will contribute to the integration of traditional stage-oriented models of information processing and concepts form ideomotor theory.