Real-time control of stepper motors for mechano-sensory stimulation
Real-time control of stepper motors for mechano-sensory stimulation
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DOI：
10.1016/j.jneumeth.2008.04.017
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发表时间：
2008-07-15
影响因子：
3
通讯作者：
Varona, Pablo
中科院分区：
文献类型：
--
作者：
Muniz, Carlos;Levi, Rafael;Varona, Pablo
机械刺激广泛用于研究生物体神经系统中的感觉编码。机械感受器神经元的刺激是通过多种产生运动或振动的装置来实现的。在许多情况下，需要对设备进行硬实时 (RT) 控制（以毫秒为单位）以产生逼真的机械刺激。可能需要实时控制才能在设备中实现所需的精度或实施依赖于活动的刺激协议，这意味着检测生理事件以实时驱动刺激。在本文中，我们展示了实时软件技术可用于控制用于机械感受器刺激的步进电机，并实现人工闭环来解决感觉运动转换。我们以控制步进电机在体外制剂中精确移动重力器官为例来说明这一点。 (C) 2008 Elsevier B.V. 保留所有权利。
Mechanical stimulation is widely used to study sensory encoding in the nervous system of living organisms. The stimulation of mechano-receptor neurons is achieved through a large variety of devices that generate movement or vibration. In many situations, a hard real-time (RT) control of the device (in the millisecond time scale) is needed to produce realistic mechanical stimuli. The real-time control can be required to achieve the desired precision in the device or to implement activity-dependent stimulation protocols that imply the detection of physiological events to drive the stimulus in real time. In this paper we show that real-time software technology can be used to control stepper motors for mechano-receptor stimulation, and to implement artificial closed-loops to address the sensory-motor transformation. We illustrate this using as an example the control of a stepper motor to precisely move gravimetric organs in in vitro preparations. (C) 2008 Elsevier B.V. All rights reserved.