Young Kymberly D, Prause Nicole, Lazzaro Sarah, Siegle Greg J
Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.
Liberos, Los Angeles, CA 95812, USA.
Brain Sci. 2020 Oct 28;10(11):790. doi: 10.3390/brainsci10110790.
The most common feedback displays in the fMRI environment are visual, e.g., in which participants try to increase or decrease the level of a thermometer. However, haptic feedback is increasingly valued in computer interaction tasks, particularly for real-time fMRI feedback. fMRI-neurofeedback is a clinical intervention that has not yet taken advantage of this trend. Here we describe a low-cost, user-friendly, MR-compatible system that can provide graded haptic vibrotactile stimulation in an initial application to fMRI neurofeedback. We also present a feasibility demonstration showing that we could successfully set up the system and obtain data in the context of a neurofeedback paradigm. We conclude that vibrotactile stimulation using this low-cost system is a viable method of feedback presentation, and encourage neurofeedback researchers to incorporate this type of feedback into their studies.
功能磁共振成像（fMRI）环境中最常见的反馈显示是视觉反馈，例如，参与者试图提高或降低温度计的数值。然而，触觉反馈在计算机交互任务中越来越受到重视，特别是在实时功能磁共振成像反馈方面。功能磁共振成像神经反馈是一种尚未利用这一趋势的临床干预方法。在此，我们描述了一种低成本、用户友好且与磁共振兼容的系统，该系统在功能磁共振成像神经反馈的初步应用中能够提供分级的触觉振动刺激。我们还展示了一个可行性演示，表明我们能够成功搭建该系统，并在神经反馈范式的背景下获取数据。我们得出结论，使用这种低成本系统进行振动触觉刺激是一种可行的反馈呈现方法，并鼓励神经反馈研究人员将这种反馈类型纳入他们的研究中。
