Which brain region is chiefly associated with planning, decision-making, and impulse control?

The prefrontal cortex is chiefly associated with planning, decision-making, and impulse control.

It is the forward portion of the frontal lobes and is strongly connected with attention, working memory, goal setting, judgment, and flexible behavior. These abilities are often grouped under the term executive function.

The prefrontal cortex does not work alone. It communicates with sensory areas, motor regions, the thalamus, basal ganglia, and limbic structures to compare goals with incoming information and emotional significance. Its maturation continues through adolescence and into early adulthood, although development varies among individuals.

A common mix-up is to treat the prefrontal cortex as a single small anatomical spot. It contains several interconnected regions, including dorsolateral, orbitofrontal, and ventromedial areas, with partly different roles. Damage can affect judgment or self-control without necessarily causing paralysis or loss of sensation.