NeurosciencebioRxivPreprint
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…·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.
DOI 10.64898/2026.07.30.739928