Which statement is true about sensory thresholds?

• A. They are the same across all individuals
• B. They vary with every individual and influence perception and behavior
• C. They only affect vision
• D. They determine intelligence

Answer: (B)

Sensory thresholds vary from person to person and shape how we perceive and respond to the world. A threshold is the point at which a stimulus is detected, and people differ in where their personal threshold lies across senses like hearing, touch, taste, smell, vision, and proprioception. Those differences help explain why some children are highly aware of gentle sensations or faint noises, while others seem unfazed by the same input, and how these thresholds influence attention, arousal, avoidance, or seeking behaviors.

In practice, these thresholds aren’t about intelligence or capacity; they’re about sensitivity. A child with a low tactile threshold might find even light touch uncomfortable and respond with withdrawal, while a child with a higher threshold may not notice textures as readily and might seek additional tactile input. Thresholds can shift with context—fatigue, motivation, attention, and movement can all raise or lower responsiveness. This concept is useful in pediatric therapy for planning graded, monitored exposure, environmental adaptations, and sensory diets to help a child regulate and engage more effectively.

The statement isn’t that thresholds are the same for everyone (they aren’t), nor that they affect only vision (they affect multiple senses), nor that they determine intelligence (they influence perception and behavior, not cognitive ability).