Modifiers matching hyperactivity:

• autonomic,
• sympathetic,

Simple categories matching autonomic:

• activity,
• hyperactivity,
• symptom,
• arousal,
• occurrence,
• process,
• phenomenon,
• system,
• abnormality,
• dysfunction,
• measure,
• disturbance,
• change,
• component,
• response,
• movement,
• state,
• condition,
• reflex,
• feature,
• disorder,
• activation,
• reaction,
• control,
• function,