Play vocalizations induce affective bias in reward learning and memory in orangutans
Daan W. Laméris, Colin Allen, Heidi Lyn, Christopher Flynn Martin, Emma K. Nelson, Ximena J. Nelson, Alex H. Taylor, Erica A. Cartmill
This study shows that orangutans exhibit affective biases in reward learning and memory when exposed to conspecific play vocalizations.
bioRxiv · May 23, 2026 · PreprintAnimal Behavior & Cognition