“I Taught Rats to Drive Cars, but They Taught Me to Enjoy the Ride” #TEDTalks

Why It Matters

The finding implies nonhuman animals seek activities for intrinsic pleasure, offering a model to study joy and motivation biologically and informing research on wellbeing and decision-making across species. The outreach success also demonstrates an engaging way to communicate neuroscience to the public.

Summary

A neuroscientist trained rats to operate small 'rodent-operated vehicles' to study agency, skill learning, and outreach, rewarding them with Froot Loops. After establishing the task, researchers tested whether rats would choose the most efficient route to food or take a detour to drive the car; most rats opted to backtrack and drive to the reward. The behavior suggested rats preferred the pleasurable, playful driving experience over efficiency, prompting insights into affective states in animals. The project also grew into a public-facing science outreach effort, turning trained rats into informal ambassadors for neuroscience.

Original Description

What can happy rats teach us about human joy? Behavioral neuroscientist Kelly Lambert describes how her team trained rats to drive tiny cars to earn treats — and noticed something surprising about how effort and anticipation affect the brain. The experiment opens new questions about how reward, agency and "behaviorceuticals" might help build resilience and support mental health.