A Low-Cost Microcontroller Based Stimulation System to Study Sensory Processing
A Low-Cost Microcontroller Based Stimulation System to Study Sensory Processing
复制标题
用于研究感官处理的基于低成本微控制器的刺激系统
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
N. Ince
中科院分区：
文献类型：
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作者：
Priscella Asman;Tianxiao Jiang;M. Ozturk;Juan Reyna;N. Ince
了解感觉处理的神经相关性，如触觉和温度感觉，对基础和临床神经科学很重要。此外，为了保留感知功能，如触觉，这在运动的调节中具有关键作用，映射躯体感觉皮层在涉及肿瘤和致癫痫区切除的手术中至关重要。需要新颖且低成本的硬件解决方案，其可以帮助临床医生以客观的方式研究行为的自然和病理水平并映射体感皮层。在这项研究中，开发了一种基于微处理器的系统，可以将振动触觉刺激传递到手的所有五个手指。该系统还通过堆叠的热电模块提供热和冷的温度感觉。为了使刺激开始与可以用生物放大器同时采集的神经数据同步，微控制器通过其数字I/O端口或经由具有低延迟的通用串行总线（USB）传输触发信号。我们的初步结果表明，我们的系统可以用来研究感官加工与提高时间精度在一个客观的方式。
Understanding the neural correlates of sensory processing such as touch and temperature sensation is important for basic and clinical neuroscience. In addition, to preserve perceptive functions such as touch, which has a critical role in the regulation of the movement, mapping the somatosensory cortex is critical in surgeries involving tumor and epileptogenic zone resection. Novel and low cost hardware solutions are needed that can help clinicians to study natural and pathological levels of behavior and map somatosensory cortex in an objective manner. In this study, a microcontroller-based system was developed which can deliver vibrotactile stimulation to all five fingers of the hand. The system also delivers hot and cold temperature sensation through stacked thermoelectric modules. In order to synchronize the stimulation onset with neural data which can be acquired with a bioamplifier simultaneously, the microcontroller transfers a trigger signal through its digital I/O port or via universal serial bus (USB) with low latency. Our preliminary results demonstrate that our system can be used to study sensory processing with improved temporal precision in an objective fashion.