Single Unit Activity In The Rat Hippocampus During A Spatial Memory Task

One goal was white the other was black.

Single unit activity in the rat hippocampus during a spatial memory task.

Preliminary evidence from unit activity in the freely moving rat. It consisted of two goal es side by side on the end of a runway. In particular activity in the anterior hippocampus during spatial memory encoding can be used to distinguish between these two hypotheses. The task required the animal to choose the correct arm of a 4 arm plus shaped maze in order to obtain reward.

Phase relationship between hippocampal place units and the eeg theta rhythm. O keefe j speakman a. In a typical working memory task the spatial alternation task rats are placed on an elevated t maze and required to alternate between the left and right goal arms on each trial. The hippocampus as a spatial map.

O keefe j speakman a. Single unit activity in the rat hippocampus during a spatial memory task. Single unit activity was recorded from complex spike cells in the hippocampus of the rat while the animal was performing a spatial memory task. We found that interregional oscillatory coupling increased with learning specifically in the slow gamma frequency 20 to 40 hz band during spatial navigation.

The same apparatus was used for all tasks. Hence we examined neural activity in the prefrontal hippocampal circuit in mice during acquisition of spatial reference memory. If encoding regardless of memory type including spatial memory is associated with the anterior hippocampus encoding should involve the anterior hippocampus. Spatial working memory tasks have been an essential tool for developing rodent models of memory.

O keefe j recce ml. Role of the hippocampus in working memory. The location of the goal arm was varied from trial to trial and was identified by 6 controlled spatial cues which were distributed around the enclosure and which were rotated in step with the goal. Pubmed google scholar o keefe j speakman a 1987 single unit activity in the rat hippocampus during a spatial memory task.

The task required the animal to choose the correct arm of a 4 arm plus shaped maze in order to obtain reward. Exp brain res 68 1 27. The role of hippocampus in memory processing was examined by recording single unit activity while rats performed two different types of memory tasks. Single unit activity in the rat hippocampus during a spatial memory task.

Single unit activity was recorded from complex spike cells in the hippocampus of the rat while the animal was performing a spatial memory task.