描述
ADHD (Attention-Deficit/Hyperactivity Disorder) is a neurodevelopmental condition characterized by persistent patterns of inattention, hyperactivity, and impulsivity that interfere with daily life. It affects both children and adults, with symptoms varying in severity and presentation. ### Differences Between ADHD and Neurotypical Brains: 1. **Dopamine Regulation:** ADHD brains have lower dopamine levels, affecting motivation, reward processing, and focus. 2. **Prefrontal Cortex Function:** The prefrontal cortex, responsible for executive functions (e.g., planning, impulse control, and decision-making), is often underactive or develops differently in ADHD individuals. 3. **Connectivity and Structure:** Differences in brain connectivity, particularly between the default mode network (mind-wandering) and task-positive network (focused thinking), can lead to difficulties in task engagement. 4. **Emotional Regulation:** People with ADHD may experience heightened emotional responses due to differences in amygdala and limbic system activity. These neurological differences explain why ADHD individuals often struggle with attention, impulsivity, and self-regulation compared to neurotypical individuals.