Aubin Ginette, Béliveau Marie-France, Klinger Evelyne
a Occupational Therapy Department, Université du Québec à Trois-Rivières , Trois-Rivières , Canada.
b HDR, ESIEA , Laval , France.
Neuropsychol Rehabil. 2018 Jul;28(5):689-708. doi: 10.1080/09602011.2015.1074083. Epub 2015 Aug 28.
People with schizophrenia often have functional limitations that affect their daily activities due to executive function deficits. One way to assess these deficits is through the use of virtual reality programmes that reproduce real-life instrumental activities of daily living (IADLs). One such programme is the Virtual Action Planning-Supermarket (VAP-S). This exploratory study aimed to examine the ecological validity of this programme, specifically, how task performance in both virtual and natural environments compares. Case studies were used and involved five participants with schizophrenia, who were familiar with grocery shopping. They were assessed during both the VAP-S shopping task and a real-life grocery shopping task using an observational assessment tool, the Perceive, Recall, Plan and Perform (PRPP) System of Task Analysis. The results show that when difficulties were present in the virtual task, difficulties were also observed in the real-life task. For some participants, greater difficulties were observed in the virtual task. These difficulties could be explained by the presence of perceptual deficits and problems remembering the required sequenced actions in the virtual task. In conclusion, performance on the VAP-S by these five participants was generally comparable to the performance in a natural environment.
精神分裂症患者常常因执行功能缺陷而存在影响其日常活动的功能限制。评估这些缺陷的一种方法是使用虚拟现实程序，该程序可重现现实生活中的日常生活工具性活动（IADLs）。其中一个这样的程序是虚拟行动计划 - 超市（VAP - S）。这项探索性研究旨在检验该程序的生态效度，具体而言，就是比较虚拟环境和自然环境中的任务表现。研究采用了案例研究，涉及五名熟悉杂货店购物的精神分裂症患者。使用观察评估工具——任务分析的感知、回忆、计划和执行（PRPP）系统，在VAP - S购物任务和现实生活中的杂货店购物任务期间对他们进行评估。结果表明，当虚拟任务中存在困难时，现实生活任务中也会观察到困难。对一些参与者来说，虚拟任务中的困难更大。这些困难可以通过感知缺陷的存在以及在虚拟任务中记住所需顺序动作的问题来解释。总之，这五名参与者在VAP - S上的表现总体上与在自然环境中的表现相当。
