Finger pressing task data collected for the with epilogue and without the epilogue conditions

The dataset presented in the article comprises 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. During experimentation, first, the participants performed the Maximum Voluntary Contraction (MVC) task, where they were instructed to produce maximum possible force from each finger individually and all together. The MVC task is followed by the finger pressing task that involves two conditions, i.e., without the epilogue and with the epilogue. The epilogue is a particular case of post-trial visual feedback where only the outcome of the just-concluded trial is shown to the participant. The force levels in the experiments of both these cases were normalized with respect to MVC. Fourteen healthy participants were recruited for the experiments and 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). Each of the two conditions has 30 trials, and the subjects performed 60 trials in total for the complete experiment apart from the MVC task. A single trial of both the conditions lasted for sixteen seconds, where for the initial eight seconds, there is visual feedback followed by the visual occlusion period where there is no visual feedback. For the experiment involving epilogue the participants were shown the feedback of the just-concluded trial, whereas for the without epilogue case, they were not given any post-trial 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 of without epilogue case, and the third file has the data of with epilogue case.

本文所呈现的数据集，采集了受试者完成手指按压任务过程中的手指作用力数据。该手指按压任务要求受试者使用右手的食指、中指、无名指与小指（分别记为I、M、R&L）产生指尖发力动作。实验流程首先为最大自主收缩（Maximum Voluntary Contraction, MVC）任务：受试者被要求分别单独激活每一根手指，以及同时激活所有四根手指，以产生所能达到的最大作用力。完成MVC任务后，受试者将执行手指按压任务，该任务包含两种实验条件：无结尾反馈组与有结尾反馈组。所谓结尾反馈，是一种特定的试后视觉反馈模式，即仅向受试者展示当前刚刚结束的试次的结果。上述两种实验条件下的所有作用力水平，均以MVC为基准进行归一化处理。本实验共招募14名健康受试者，要求其使用右手四根手指完成指尖发力任务，目标发力值设定为MVC的15%（即受试者在MVC任务中产生的最大作用力的15%）。两种实验条件各包含30个试次，除去MVC任务外，受试者在完整实验中共完成60个试次。两种实验条件下的单个试次均持续16秒：前8秒为视觉反馈阶段，随后进入无视觉反馈的视觉遮蔽阶段。带有结尾反馈的实验条件中，受试者会被展示刚刚结束的试次的反馈结果；而无结尾反馈条件下，受试者不会获得任何试后反馈。本数据集共包含三个数据文件：第一个文件存储最大自主收缩（MVC）任务的实验数据，第二个文件存储无结尾反馈条件下的实验数据，第三个文件存储有结尾反馈条件下的实验数据。