Somesthesis and Touch perception

Somesthesis noun - The faculty of bodily perception; sensory systems associated with the body; includes skin senses and proprioception and the internal organs.

Touch perception and somesthesis are semantically related. In some cases you can replace phrase "Touch perception" with "Somesthesis", this terms are similar.

Touch perception noun - The faculty of perceiving (via the skin) pressure or heat or pain.

Somesthesis and touch perception are semantically related. You can use "Somesthesis" instead a noun phrase "Touch perception".