Modifiers matching stimulation:

• outside,
• sensory,
• antigenic,
• sexual,
• internal,
• chronic,
• light,
• intellectual,
• noxious,
• mental,
• emotional,
• regular,
• external,
• physical,
• intense,
• aversive,
• sympathetic,
• mechanical,
• environmental,
• auditory,
• active,
• electrical,

Simple categories matching auditory:

• technology,
• structure,
• system,
• process,
• information,
• signal,
• ability,
• canal,
• grouping,
• phenomenon,
• event,
• quality,
• attribute,
• perception,
• characteristic,
• symptom,
• medium,
• skill,
• property,
• memory,
• pattern,
• processing,
• sign,
• dimension,
• syndrome,
• area,
• stimulus,
• component,
• stimulation,
• task,
• activity,
• analysis,
• centre,
• abnormality,