🔬general biology i review

Attention deficit/hyperactivity disorder (ADHD)

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

ADHD is a neurological disorder characterized by inattention, hyperactivity, and impulsiveness. It affects brain regions involved in executive function and behavior regulation.

5 Must Know Facts For Your Next Test

  1. ADHD is associated with abnormalities in the neurotransmitters dopamine and norepinephrine.
  2. The prefrontal cortex, basal ganglia, and cerebellum are brain regions implicated in ADHD.
  3. Genetic factors contribute significantly to the development of ADHD.
  4. Environmental factors such as prenatal exposure to tobacco or alcohol can increase ADHD risk.
  5. Standard treatments for ADHD include stimulant medications like methylphenidate and behavioral therapies.

Review Questions

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