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《Acta Academiae Medicinae Militaris Tertiae》 2009-05
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Establishment of classical eyeblink conditioned reflex model in conscious and unfixed guinea pigs and study of related acquisition rule

LI Rui1,LIU Hong-liang1,SUI Jian-feng2,FAN Zheng-li2,HUANG Lu-shuai2,WAN Zi-bing3,ZHAO Hong-mei3(1Department of Rehabilitation and Physical Therapy,Southwest Hospital;2Department of Physiology,3Experimental Center of Experimental Teaching,College of Basic Medical Sciences,Third Military Medical University,Chongqing 400038,China)  
Objective To establish a model of classical eyeblink conditioned reflex(EBCR) in conscious and unfixed guinea pigs and to analyze the related acquisition rule.MethodsWith the aid of metal electrode embedding technique and simple follow-up air puff stimulus facility,conscious and unfixed guinea pigs were trained to performed EBCR with tone as conditioned stimulus(CS) and air puff as unconditioned stimulus(US).The eyeblink behavior was evaluated through electromyography(EMG) of musculi oculi.ResultsThe eyeblink EMG signal of musculi oculi were successfully collected,and the classical eyeblink conditioning was obtained.The acquisition rate in the 4th,7th,and 10th day were 31%,61.3% and 82.7% respectively,and the maintain rate in the 15th and 20th day were 81.3% and 82.3%.ConclusionConscious and unfixed guinea pigs can be trained to obtain EBCR with the techniques of musculi oculi EMG signal recording and follow-up air puff stimulating method.It is an easy,convenient,feasible,and reliable method with high achievement ratio.It could be applied to study conditioned eyeblink behavior of animals with big body type,or animals uneasy to be fixed.
【Fund】: 国家自然科学基金(30672255)~~
【CateGory Index】: R-332
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【Citations】
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【Co-citations】
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8 HUANG Lu-shuai1, LIN Xi1, HU Bo2, LI Rui3, YANG Li1, SUI Jian-feng1 (1Department of Physiology, College of Basic Medical sciences, 2Department of Neurosurgery, 3Department of Rehabilitation, Southwest Hospital, Third Military Medical University, Chongqing 400038, China);Synaptic ultrastructural changes of cerebellar dentate-interpositus nuclei after acquisition of classically conditioned eyeblink responses in guinea pigs[J];Acta Academiae Medicinae Militaris Tertiae;2009-06
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