Revisiting episodic-like memory in scrub jays: Is there more we can still learn from what-where-when caching behaviour?

Abstract

Professor Nicola Clayton is perhaps best known for her work on food-caching scrub jays. Her seminal 1998 paper, together with Anthony Dickinson, showed that scrub jays could remember what food they had cached, where and how long ago, suggesting memory ability that is 'episodic-like' in nature. Here, we present data from a previously unpublished study that sought to replicate and extend these findings. The results replicate previous findings and address potential alternative explanations for earlier results. We argue that the controlled behavioural analyses introduced in this study have the potential to add nuance to our understanding of memory in scrub jay cache retrieval, and to inspire new studies exploring this phenomenon, about which we still have so much to learn.