Kappa Opioid-Oxytocin Interactions During Long-Term Partner Separation: Insights from PET Imaging in Titi Monkeys (Plecturocebus cupreus)
John P. Paulus, Claudia Manca, Alita Jesal D Almeida, Anelise Caceres, Meghan J. Sosnowski, Brad A. Hobson, Abhijit J. Chaudhari, Karen Lisa Bales
This study uses PET imaging in titi monkeys to examine KOR availability and plasma OT changes during partner separation, finding reduced KOR in nucleus accumbens and sex-dependent OT responses.
bioRxiv · Aug 5, 2026 · PreprintNeuroscience