Frontal Lobe · Structure

Prefrontal Cortex

The brain's chief executive.

The prefrontal cortex sits at the very front of the frontal lobe and handles the hardest thinking you do: weighing options, resisting temptation, and imagining consequences that haven't happened yet. It is also the slowest part of the brain to finish developing.

What it does

  • Planning several steps ahead
  • Impulse control and delaying reward
  • Holding information in working memory
  • Switching flexibly between tasks

In the real world

The marshmallow test, revisited

Modern imaging studies show that children who wait for a second treat recruit more prefrontal activity. Schools now teach explicit self-regulation strategies instead of assuming willpower is fixed.