The study or science of general sensations from various kinds of touching; including:

• Delicate touch, or the ability to detect a light contact between an object and the skin.
• Pain that warns the brain about a possible injury from an external stimulus and can trigger a reflex withdrawal.
• Heat in which some free nerve endings respond specifically to heat.
• Cold on the skin which can be detected by specialized end organs and extreme cold also stimulates pain receptors.
• Pressure when a change in pressure on the skin is detected by specialized end organs called pacinian corpuscles.