Physiological Characteristics of the Spinal Pre EPSP of the Mauthner Cell

Journal of Capital Medical University ›› 1997, Vol. 18 ›› Issue (3): 202-204.

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Physiological Characteristics of the Spinal Pre EPSP of the Mauthner Cell

Zhang Shuhua, Zhang Yingcai, Yu Fen, Tong Xuehong, Li Xiaoyi, Zhang Maoxian

Department of Physiology, Capital University of Medical Sciences

Received:1997-04-08 Revised:1900-01-01 Online:1997-07-15 Published:1997-07-15

Abstract

Abstract: The spinal pre EPSP (the pre EPSP) could be evoked at the soma of the Mauthner cell in the crucian carp by direct stimulation of the spinal cord. The pre EPSPwas different from the spinal EPSPwith its shorter latency (1.33±0.21) ms , lower amplitude (2.22±1.08) mV , shorter duration (2.65±0.83) ms and lower threshold (3.49±0.74) V . The excitability of the Mauthner cell could be modulated by the pre EPSP, which was probably mediated by the afferent pathway of larger diameter, faster conduction velocity, and mixed monosynaptic relay.

Key words: spinal pre EPSP, Mauthner cell, crucian carp

CLC Number:

Q427

Zhang Shuhua;Zhang Yingcai;Yu Fen;Tong Xuehong;Li Xiaoyi;Zhang Maoxian. Physiological Characteristics of the Spinal Pre EPSP of the Mauthner Cell[J]. Journal of Capital Medical University, 1997, 18(3): 202-204.

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Physiological Characteristics of the Spinal Pre EPSP of the Mauthner Cell

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