Theta rhythm: a temporal correlate of memory storage processes in the rat.
We examined the amount of theta rhythm (4 to 9 hertz) in cortical electroencephalograms of rats for 30 minutes after training in one-trial tasks. Some animals received electroconvulsive shock after training. The amount of theta in the electroencephalogram after training was positively correlated with the degree of subsequent retention of a footshock, whether animals had received electroconvulsive shock or not.
D000818:Animals; D001362:Avoidance Learning; D002540:Cerebral Cortex / Q000502:physiology; D004567:Electrodes, Implanted; D004569:Electroencephalography; D004597:Electroshock; D008297:Male; D008568:Memory; D051381:Rats