[Influence of CA1 hippocampal field on theta-activity in rats under urethane anesthesia].
The influence of CA1 hippocampal field on the theta-activity production depending on the efficiency of CA1 synaptic inputs was studied in urethanized rats. The long-term posttetanic potentiation (LTP) of Shaffer collaterals resulted in an increase in the theta-power in hippocampal EEG without change in its frequency. A high correlation was shown between the increase in the theta-power and the amplitude of the local potentials induced by LTP. The mechanisms and the functional role of the observed relations between the LTP and theta activity are discussed.
Fedotova
I R
IR
Uzakov
Sh S
ShS
Frolov
A A
AA
Markevich
V A
VA
D000777:Anesthetics; D000818:Animals; D056547:CA1 Region, Hippocampal / Q000502:physiology*; D017774:Long-Term Potentiation; D051381:Rats; D020665:Septum of Brain / Q000502:physiology; D013569:Synapses / Q000502:physiology; D013826:Theta Rhythm; D014520:Urethane
D000777:Anesthetics; D014520:Urethane