Brain Chemicals Predict Laziness | Risk, Reward & Hard Work
It mayِ beِ your levels ofِ a brain chemical called dopamine.
Dopamine doesِ differentِ things inِ differentِ areas ofِ the brain.
So whileِ high levels inِ some brain regions wereِ associatedِ with a high work ethic, a spike inِ anotherِ brain region seemedِ indicateِ just theِ oppositeِ — a person moreِ likelyِ to slack off, evenِ if itِ meant smaller monetary rewards.
The researchers scanned theِ brains ofِ 25 young adult volunteers andِ put themِ through a test toِ seeِ howِ hard theyِ were willingِ toِ work forِ a monetary reward.
They repeated theseِ 30-second tasks forِ 20 minutes.
They compared testing data withِ brain scans ofِ these patients, withِ andِ without administration ofِ the dopamine-releasing drug amphetamine, whichِ providesِ a reading ofِ howِ much dopamine isِ normally released inِ differentِ areas inِ the brain.
Motivation and mental illness
These differences mayِ mean thatِ the choice betweenِ working hard andِ slacking offِ depend onِ howِ the brain weighs risk andِ reward, theِ researchers said.
Some people areِ more wary aboutِ taking a risk andِ expending extra energy forِ anِ unlikely, butِ larger, reward.
These findings couldِ beِ important inِ gettingِ a betterِ grip onِ mental illnesses characterized byِ a lack ofِ motivation, suchِ asِ ADD, depression andِ schizophrenia, theِ researchers said.