> Panksepp and Burgdorf showed that the animals remembered areas in their enclosures where they had been tickled before and routinely returned to those sites.
> And in the current study, rats were observed performing something called Freudensprünge, or “joy jumps,” after tickling.
> Rats showed both a behavioral sign of regret (turning and looking at the missed high-value reward) and were then more willing to wait for a reward following regret-inducing instances, indicating that they learned from their mistake.
https://www.nationalgeographic.com/animals/article/rats-tick...
> Panksepp and Burgdorf showed that the animals remembered areas in their enclosures where they had been tickled before and routinely returned to those sites.
> And in the current study, rats were observed performing something called Freudensprünge, or “joy jumps,” after tickling.
They can also apparently feel regret:
https://www.scientificamerican.com/article/rats-experience-f...
> Rats showed both a behavioral sign of regret (turning and looking at the missed high-value reward) and were then more willing to wait for a reward following regret-inducing instances, indicating that they learned from their mistake.