Your eyes can reveal your decisions before you even make them

By Gege Li

The eyes are a window for decision making

Rolando Caponi / EyeEm / Getty Image

Choosing between a run or sitting on the sofa together can be a daunting task, but it turns out that your eyes can reveal your decision before you’ve even made it.

When we do something that requires physical exertion, our pupils can dilate and increase activity in the prefrontal cortex, the part of the brain involved in cognition. Now, these two responses also seem to guide our decisions about activities that we have not yet undertaken.

To investigate this idea, Irma Kurniawan and …