Back
ADHD Fundamentals

Essential knowledge about what ADHD is and how it affects the brain

beginner
What is ADHD?
Section 1 of 2

Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental condition that affects executive functions in the brain. It's characterized by persistent patterns of inattention, hyperactivity, and impulsivity that interfere with functioning or development.

Key Points

  • ADHD is a neurobiological condition, not a character flaw
  • It affects 5-10% of children and 2.5-4% of adults worldwide
  • Symptoms must be present before age 12 for diagnosis
  • ADHD has three presentations: inattentive, hyperactive-impulsive, and combined
The ADHD Brain
Section 2 of 2

Research shows that ADHD brains have structural and functional differences, particularly in areas responsible for executive function, attention regulation, and impulse control.

Key Points

  • Prefrontal cortex develops more slowly in ADHD
  • Neurotransmitter imbalances affect dopamine and norepinephrine
  • Default Mode Network operates differently
  • Working memory and attention networks show altered connectivity
Knowledge Check
Question 1 of 2

Loading...