Odor aversion learning by the rat fetus.

  title={Odor aversion learning by the rat fetus.},
  author={William P Smotherman},
  journal={Physiology & behavior},
  volume={29 5},
Rat fetuses were exposed to an odor stimulus on day 20 of gestation via amniotic injection and then injected with LiCl. In a CER paradigm, 10 day old pups were trained to approach an anesthetized dam in a runway for suckling reinforcement. When running speeds had stabilized the odor stimulus experienced in-utero was introduced into the test chamber. This odor took on aversive properties as a function of its pairing with LiCl, as evidenced by a decrease in running speed on CER trials and… CONTINUE READING

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