Exposure to Novelty Weakens Conditioned Fear in Long-Evans Rats

The present study sought to determine whether post-training exposure to a novel or familiar object, encountered in either the location of the original fear conditioning (black compartment of a passive avoidance {PA} chamber) or in a neutral setting (open field where initial object training had occurred) would prove capable of reducing fear at subsequent test in a passive avoidance task. In Experiment 1, Long-Evans rats that encountered a novel object [...]

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