Positive and negative ultrasonic social signals elicit opposing firing patterns in rat amygdala

@article{Parsana2012PositiveAN,
  title={Positive and negative ultrasonic social signals elicit opposing firing patterns in rat amygdala},
  author={Ashwini J. Parsana and Nanxin Li and Thomas H. Brown},
  journal={Behavioural Brain Research},
  year={2012},
  volume={226},
  pages={77-86}
}
Rat ultrasonic vocalizations (USVs) are ethologically-essential social signals. Under natural conditions, 22kHz USVs and 50kHz USVs are emitted in association with negative and positive emotional states, respectively. Our first experiment examined freezing behavior elicited in naïve Sprague-Dawley rats by a 22kHz USV, a 50kHz USV, and frequency-matched tones. None of the stimuli elicited freezing, which is the most commonly-used index of fear. The second experiment examined single-unit… CONTINUE READING

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