Hippocampus and Pavlovian fear conditioning in rats: muscimol infusions into the ventral, but not dorsal, hippocampus impair the acquisition of conditional freezing to an auditory conditional stimulus.

@article{Maren2004HippocampusAP,
  title={Hippocampus and Pavlovian fear conditioning in rats: muscimol infusions into the ventral, but not dorsal, hippocampus impair the acquisition of conditional freezing to an auditory conditional stimulus.},
  author={Stephen Maren and William G Holt},
  journal={Behavioral neuroscience},
  year={2004},
  volume={118 1},
  pages={97-110}
}
The authors compared the effects of pharmacological inactivation of the dorsal hippocampus (DH) or ventral hippocampus (VH) on Pavlovian fear conditioning in rats. Freezing behavior served as the measure of fear. Pretraining infusions of muscimol, a GABAA receptor agonist, into the VH disrupted auditory, but not contextual, fear conditioning; DH infusions did not affect fear conditioning. Pretesting inactivation of the VH or DH did not affect the expression of conditional freezing. Pretraining… CONTINUE READING
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