Attention-deficit hyperactivity disorder

Attention-deficit hyperactivity disorder is a chronic neurodevelopmental disorder of the central nervous system that originates in childhood and frequently persists into adulthood It is clinically characterized by a persistent and developmentally inappropriate pattern of inattention, hyperactivity, and impulsivity that causes significant functional impairment across multiple settings

Attention-deficit hyperactivity disorder is a chronic neurodevelopmental disorder of the central nervous system that originates in childhood and frequently persists into adulthood It is clinically characterized by a persistent and developmentally inappropriate pattern of inattention, hyperactivity, and impulsivity that causes significant functional impairment across multiple settings

Attention-deficit hyperactivity disorder is a chronic neurodevelopmental disorder of the central nervous system that originates in childhood and frequently persists into adulthood Pathophysiologically, the condition is associated with dysregulation of frontal-striatal neural circuits and altered catecholaminergic neurotransmission, particularly involving dopamine and norepinephrine pathways that govern executive function, behavioral inhibition, and sustained attention

Attention-deficit hyperactivity disorder is a chronic neurodevelopmental disorder of the central nervous system that originates in childhood and frequently persists into adulthood It is clinically characterized by a persistent and developmentally inappropriate pattern of inattention, hyperactivity, and impulsivity that causes significant functional impairment across multiple settings

Pathophysiologically, the condition is associated with dysregulation of frontal-striatal neural circuits and altered catecholaminergic neurotransmission, particularly involving dopamine and norepinephrine pathways that govern executive function, behavioral inhibition, and sustained attention