Simple categories matching regulation:

• difficulty,
• process,
• problem,
• mechanism,

Members with property regulation:

• depression,
• cognitive_change,
• synthesis,
• intense_rage,
• attention_deployment,
• neurotransmitter_release,
• problem,
• reflection,
• directing_attention,
• development,
• price_cap,
• oxidation,
• respiration,
• panic,
• evaluation,
• acclimation,
• cellular_adhesion,
• control,
• enzyme_regulation,
• planning,
• impulse_control,
• metabolism,
• monitoring,
• calcium_pump,
• metering_pump,
• movement,
• valve,
• deletion,
• differentiation,
• design,
• organization,
• check,
• signal_transduction,
• histone_acetylation,