Dopamine Boost: Why Happiness Puts Skip in Our Step

New study explores how dopamine affects movement and vigor

Published on Feb. 28, 2026

Got story updates? Submit your updates here. ›

New research by engineers at the University of Colorado Boulder examines the link between dopamine, a brain chemical associated with reward, and how it affects human movement and vigor. The study found that unexpected rewards can give people a temporary boost in movement speed, while a string of rewards leads to an overall increase in movement speed over time. The findings could help scientists understand and diagnose conditions like Parkinson's disease and depression that affect movement.

Why it matters

This research provides insights into how the brain's dopamine system influences physical movement and behavior. Understanding these connections could lead to new ways to monitor and treat neurological and mental health conditions that impact movement, like Parkinson's disease and depression.

The details

In the study, researchers had participants use a joystick-like device to reach for targets on a computer screen. Some targets provided rewards like a flash of light and a beep, while others did not. The team found that when participants unexpectedly received a reward, they experienced a brief surge in movement speed, even after already receiving the reward. This suggests the brain may release an extra burst of dopamine in response to pleasant surprises. Participants also tended to move faster overall if they had recently received a string of rewards, compared to a series of unrewarded attempts.

  • The study was published on February 27, 2026.

The players

Alaa Ahmed

Professor in the Paul M. Rady Department of Mechanical Engineering at the University of Colorado Boulder and senior author of the study.

Colin Korbisch

Former graduate student at the University of Colorado Boulder and co-author of the study.

Wolfram Schultz

Neuroscientist who conducted seminal studies on dopaminergic activity in primates in the 1990s.

Got photos? Submit your photos here. ›

What they’re saying

“Movements are a window to the mind. Normally, you can't go into the brain and see what the dopaminergic neurons are doing, but movement could reflect those neural computations that are so difficult to disentangle.”

— Colin Korbisch, Former graduate student (Mirage News)

“If you've had a good day, you'll go faster. If you've had a bad day, you'll move slower. It's basically that skip in your step.”

— Alaa Ahmed, Professor (Mirage News)

What’s next

The researchers plan to continue studying how dopamine and other neurotransmitters influence movement and behavior, with the goal of developing new ways to monitor and treat conditions that affect physical movement.

The takeaway

This study sheds light on the powerful connection between our emotions, brain chemistry, and physical movement. By understanding how dopamine drives the 'skip in our step' when we're happy, scientists may uncover new insights into neurological and mental health disorders.