Nonlinear hippocampal coding of the pair-bonded partner in prairie voles
Liu, J.; Watanabe, K.; Miyano, M.; Kudara, M.; Kato-Ishikura, E.; Iijima, S.; Takeda, K.; Koike, R.; Nagahiro, T.; Yamashiro, K.; Young, L. J.; Ikegaya, Y.; Matsumoto, N.
Show abstract
Neural representation of specific opposite-sex partners remains largely unexplored. Using monogamous prairie voles, we demonstrated that partner preference required the ventral hippocampus, in which 3-4 Hz oscillations were enhanced following partner interaction. We identified ventral hippocampal neurons responding selectively to the pair-bonded partner and stranger, which encoded identity-related information in a nonlinear manner, shedding light upon how mammalian brains create distinct neural representations of romantic opposite-sex partners.
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