This thesis project investigates the role of the hippocampus in object memory. Currently, the hippocampus' role in object recognition is unclear, with some studies demonstrating a delay-dependent impairment after hippocampal damage while others showing no impairment. The present thesis used the novel object recognition task and its variants to investigate types of object memory in hippocampal lesion rats. In the first study, impairments were observed in discriminating object order and associating objects with contexts, while no impairment was observed in novel object recognition. In the...