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 …

Rats learned, using distal room cues, to run to a goal on an elevated, circular track starting
from any position on the track. The goal was one of eight equidistant, recessed cups set …

The frequency of the hippocampal theta rhythm in freely moving rats varies predictably in
relation to behavior in a simple learning situation. The theta rhythm may be driven by …

Forced running in a treadmill results in the instantaneous appearance of a synchronous
electroencephalographic pattern in the dorsal hippocampus of the rat. A similar bioelectric …

Human subjects were instructed to respond regularly at 3-second intervals while their brain
waves were recorded and analyzed. When subjects were alert the time between two …

The correlated activity of rat hippocampal pyramidal cells during sleep reflects the activity of
those cells during earlier spatial exploration. Now the patterns of activity during sleep have …

When rats received a brief footshock upon stepping off an elevated platform, and an
electroconvulsive shock 30 seconds or 6 hours afterward, amnesia was not observed 24 …

Mice received a single training trial on an inhibitory avoidance task and a retention trial 24
hours later. Electroshock stimulation, administered 25 seconds after the training trial …

The permanence of retrograde amnesia produced for a single training trial by a single
electroconvulsive shock was studied. No recovery from amnesia was found with either …

An evoked potential component with a poststimulus peak at about 250 milliseconds is
related to the storage of information in short-term memory. This storage component was …