What is Executive dysfunction?
Executive dysfunction is the impairment of executive functions—the cognitive processes that enable goal-directed behavior, including planning, working memory, inhibition, and cognitive flexibility. It is a core feature of numerous neurological and psychiatric conditions.
How it works
Executive dysfunction can result from damage to or dysfunction of the prefrontal cortex and its connections. It manifests as difficulty planning and organizing, poor impulse control, inability to switch strategies when current ones fail, working memory deficits, and reduced self-monitoring. Critically, people with executive dysfunction may have intact intelligence and knowledge but cannot deploy these effectively because the control systems are impaired.
Applied example
A person with ADHD who understands everything about healthy eating but cannot plan meals, resist impulse purchases at the grocery store, or remember to prepare food in advance has executive dysfunction: the knowledge exists but the control systems needed to implement it are impaired.
Why it matters
Executive dysfunction explains why knowing what to do and being able to do it are neurologically distinct, with implications for how we design interventions for people with impaired self-regulation.
