Balamurugan S, Varadhan S K M
Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai, India.
Data Brief. 2020 Jan 11;29:105127. doi: 10.1016/j.dib.2020.105127. eCollection 2020 Apr.
The dataset presented in the article consists of finger forces of participants during a finger pressing task. The finger pressing task involves the production of fingertip forces using Index, Middle, Ring, and Little (I, M, R&L) fingers of the right hand. The participant performed two types of task, namely MVC task and visual occlusion task. The participants completed the Maximum Voluntary Contraction (MVC) task first, where they were instructed to produce maximum possible force from each finger individually and all fingers together. The visually occluded finger pressing task followed the MVC task. In this task, the participant's visual feedback was removed after 8s. There were two conditions in this task, one with post-trial performance feedback (referred to as "epilogue" condition in this manuscript) and another that does not have this post-trial performance feedback (referred to as "no epilogue" condition in this manuscript). The epilogue condition is a particular case of post-trial visual feedback where, at the end of each trial, the performance in that trial is shown to the participant. This was followed by the next trial. Normalization of force levels for visual occlusion tasks was performed for the forces with the participants produced in the MVC task. Fourteen healthy participants were recruited for performing the experiments. For the experiments, they were instructed to produce fingertip forces using four fingers of the right hand with the target line at 15% MVC (15% of the force that they produced in the MVC task). The two visual occlusion conditions had 30 trials each. In both conditions, a single trial lasted 16 s. For the initial 8 s, there is visual feedback, which follows an eight-second visual occlusion period where there is no visual feedback. The dataset consists of three files; the first file has the data of Maximum Voluntary Contraction (MVC) data, the second file has the data for the "without epilogue" condition, and the third file has the data of "epilogue" case.
文章中呈现的数据集包含参与者在手指按压任务期间的手指力量。手指按压任务涉及使用右手的食指、中指、无名指和小指（I、M、R&L）产生指尖力量。参与者执行了两种类型的任务，即最大自主收缩（MVC）任务和视觉遮挡任务。参与者首先完成最大自主收缩（MVC）任务，在此任务中，他们被指示分别用每个手指以及所有手指一起产生最大可能的力量。视觉遮挡手指按压任务在MVC任务之后进行。在此任务中，参与者的视觉反馈在8秒后被移除。此任务有两种情况，一种是有试验后性能反馈（在本手稿中称为“结语”情况），另一种没有这种试验后性能反馈（在本手稿中称为“无结语”情况）。结语情况是试验后视觉反馈的一种特殊情况，即在每次试验结束时，向参与者展示该试验中的表现。然后进行下一次试验。对视觉遮挡任务的力量水平进行归一化处理时，使用的是参与者在MVC任务中产生的力量。招募了14名健康参与者进行实验。对于实验，他们被指示用右手的四个手指产生指尖力量，目标线为MVC的15%（即他们在MVC任务中产生力量的15%）。两种视觉遮挡情况各有30次试验。在两种情况下，单次试验持续16秒。在最初的8秒内有视觉反馈，随后是8秒的视觉遮挡期，在此期间没有视觉反馈。数据集由三个文件组成；第一个文件包含最大自主收缩（MVC）数据，第二个文件包含“无结语”情况的数据，第三个文件包含“结语”情况的数据。
