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An Adaptive Strategy for an Immersive Visuo-Haptic Attention Training Game

机译：沉浸式视觉-触觉注意力训练游戏的自适应策略

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Attention training using virtual environments is a promising way to treat mental disorders such as attention-deficit hyperactivity disorder (ADHD). Interactive haptic tasks combined with immersive visual display provide a potential solution for attention modulation and training. In this paper, we introduced a visuo-haptic game consisting of stimulus-response tasks using fingertip pressure control with immersive visual display using the Oculus Rift. Users were required to press a force sensor using either the index or middle finger from either hand. In each trial, users needed to maintain a constant force with an expected tolerance within an allowable response time. An adaptive strategy was proposed to tune the difficulty level of the task to match the force control skill of the user, which may produce an optimal success rate in each trial to maintain users' interest and keep them motivated. Furthermore, a randomized algorithm was adopted to vary the target fingertip, target force magnitude and target tolerance between adjacent trials, which was designed to avoid the boring repetition and thus to keep the users' curiosity on the task. Experimental results on six participants show that the proposed strategy was able to obtain different expected success rates, i.e. either 79.4 % or 50 %.
机译：使用虚拟环境进行注意力训练是治疗精神障碍（如注意力不足过动症（ADHD））的一种有前途的方法。交互式触觉任务与沉浸式视觉显示相结合，为注意力调制和培训提供了潜在的解决方案。在本文中，我们介绍了一种视觉触觉游戏，该游戏由使用Oculus Rift的指尖压力控制和沉浸式视觉显示的刺激响应任务组成。要求用户用食指或中指从任一只手按力传感器。在每个试验中，用户都需要在允许的响应时间内保持恒定的力，并具有预期的公差。提出了一种自适应策略来调整任务的难度水平，以匹配用户的力量控制技能，这可以在每次试验中产生最佳的成功率，以保持用户的兴趣并保持他们的动力。此外，采用随机算法来改变相邻试验之间的目标指尖，目标力大小和目标容忍度，其目的是避免无聊的重复，从而保持用户对任务的好奇心。对六名参与者的实验结果表明，所提出的策略能够获得不同的预期成功率，即79.4％或50％。

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