Cooper Richard P
School of Psychology, Birkbeck, University of London, London, UK.
Cortex. 2007 Apr;43(3):319-37. doi: 10.1016/s0010-9452(08)70458-1.
The behaviour of ideational apraxic patients on simple tasks involving multiple objects is typically marked by a variety of errors. While some of these errors concern the sequential organisation of action through time, many relate to the misuse of, or failure to use, necessary or appropriate tools. In this paper we apply the computational model of Cooper and Shallice (2000) to five standard multiple object tasks used in clinical assessment and demonstrate how, when lesioned, the model can account for the error profiles of two ideational apraxic patients discussed by Rumiati et al. (2001). Application of the model to the multiple object tasks demonstrates the generality of the model, while the account of the error profiles extends previous work (Cooper et al., 2005) in which ideational apraxia was argued to arise from a generalised disturbance of object representations that are held to trigger action schemas.
观念性失用症患者在涉及多个物体的简单任务中的行为通常表现为各种错误。虽然其中一些错误涉及动作随时间的顺序组织，但许多错误与必要或适当工具的误用或未使用有关。在本文中，我们将库珀和沙利斯（2000年）的计算模型应用于临床评估中使用的五个标准多物体任务，并展示了当模型受损时，它如何能够解释鲁米亚蒂等人（2001年）讨论的两名观念性失用症患者的错误特征。将该模型应用于多物体任务证明了该模型的通用性，而对错误特征的解释扩展了之前的工作（库珀等人，2005年），在该工作中，观念性失用症被认为是由被认为触发动作图式的物体表征的普遍干扰引起的。
