A remote control training system for rat navigation in complicated environment

• Published in: Journal of Zhejiang University. A. Science Vol. 8; no. 2; pp. 323 - 330
• Main Authors: Feng, Zhou-yan, Chen, Wei-dong, Ye, Xue-song, Zhang, Shao-min, Zheng, Xiao-jing, Wang, Peng, Jiang, Jun, Jin, Lin, Xu, Zhi-jian, Liu, Chun-qing, Liu, Fu-xin, Luo, Jian-hong, Zhuang, Yue-ting, Zheng, Xiao-xiang
• Format: Journal Article
• Language: English
• Published: College of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China%Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310027, China 01.02.2007; College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China%Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310027, China; School of Medicine, Zhejiang University, Hangzhou 310006, China; Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou 310027, China
• Subjects: 医学动物学; 神经生理学; 蓝牙技术; 远动技术; 遥感控制; Brain; Stimulator; Navigation; Reward stimulation; Remote control; Whisker
• ISSN: 1673-565X; 1862-1775
• DOI: 10.1631/jzus.2007.A0323

A remote control system has been developed to deliver stimuli into the rat brain through a wireless micro-stimulator for animal behavior training. The system consists of the following main components： an integrated PC control program, a transmitter and a receiver based on Bluetooth （BT） modules, a stimulator controlled by C8051 microprocessor, as well as an operant chamber and an eight-arm radial maze. The micro-stimulator is featured with its changeable amplitude of pulse output for both constant-voltage and constant-current mode, which provides an easy way to set the proper suitable stimulation intensity for different training. The system has been used in behavior experiments for monitoring and recording bar-pressing in the operant chamber, controlling rat roaming in the eight-arm maze, as well as navigating rats through a 3D obstacle route. The results indicated that the system worked stably and that the stimulation was effective for different types of rat behavior controls. In addition, the results showed that stimulation in the whisker barrel region of rat primary somatosensory cortex （SI） acted like a cue. The animals can be trained to take different desired turns upon the association between the SI cue stimulation and the reward stimulation in the medial forehrain bundle （MFB）.