Related Experiment Video
Updated: Aug 19, 2026

A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat
Published on: April 24, 2009
Retention of spatial information in hippocampally damaged rats overtrained on a cartographic task
1Departamento de Psicología Experimental y Fisiología del Comportamiento, Facultad de Psicología, Universidad de Granada, 18071, Granada, Spain. mmjramos@platon.ugr.es
Abstract:
Hippocampal rats were overtrained on a cartographic task until they reached a performance equal to that of the control group. Twenty-four days later, during a retraining period, lesioned rats showed a profound retention deficit as compared to controls. However, Expt. 2 shows no retention deficit when a guidance strategy is used to acquire the spatial task. These results suggest that the hippocampus is crucial for long-term retention/consolidation of allocentric spatial information.

