Cognitive fatigue effect on rehabilitation task performance in a haptic virtual environment system:

摘要

IntroductionThis paper presents a study on an affordable rehabilitation approach to post-stroke patients. In this approach, a patient performs a task on a haptic virtual environment system and a physician examines the patient’s task remotely based on the performing data.ObjectivesThe objective of this study is to test a hypothesis that an elevated cognitive fatigue state may significantly affect the patient’s task performance so as to disturb judgment by physicians.MethodsThe study included the development of a test-bed for the experiment and an experimental study for the hypothesis. The study took the wrist coordination function of the upper limb as an example.ResultThe study showed that the cognitive fatigue state has a significant influence on the patient’s task performance; in other words, there is a noise (75% discrepancy from the true performance information) in the performance data.ConclusionThe study provides great potential for accurate assessment of the functional state from true patient task pe...