Differences of spontaneous discharges of hippocampal pyramidal cells in rats of different age and memory groups
- VernacularTitle:不同鼠龄和学习记忆成绩大鼠海马锥体细胞自发放电差异性研究
- Author:
Jie GAO
;
Jianfeng SUI
;
Zhiru ZHU
;
Haidi LI
;
- Publication Type:Journal Article
- Keywords:
hippocampus;
pyramidal cells;
spontaneous discharge;
complexity;
favored pattern
- From:Journal of Third Military Medical University
1983;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the characteristics of spontaneous discharges of hippocampal pyramidal cells (PC) in rats in age and memory groups with the help of nonlinear theory. Methods Rats were randomly divided into age group and memory group. Age group included aged group (16-19 months) and young group (3-4 months) whereas memory group included good memory and poor memory groups in adult. Extracellular single cell recording was performed in vivo . Results No characteristics of the rhythm of spontaneous discharges of hippocampal pyramidal cells in distribution figure of interspike interval(ISI) were found, but the loss of complexity(C) and low percentage of favored patterns(PF) were found in age and poor memory groups. Conclusion The ISI complexity and the PF of the hippocampal pyramidal cells are correlated to age and memory, suggesting that the analysis of the complexity and favored patterns may be helpful for the discovery of the characteristics of the information coding in spontaneous discharges of hippocampal pyramidal cells.
