touch perception vs somesthesis

touch perception and somesthesis both are nouns.

Word	Noun	Adjective	Verb	Adverb
touch perception	Yes	No	No	No
somesthesis	Yes	No	No	No

As nouns, somesthesis is a hypernym of touch perception; that is, somesthesis is a word with a broader meaning than touch perception:

touch perception: the faculty of perceiving (via the skin) pressure or heat or pain
somesthesis: the faculty of bodily perception; sensory systems associated with the body; includes skin senses and proprioception and the internal organs

touch perception (noun)	somesthesis (noun)
the faculty of perceiving (via the skin) pressure or heat or pain	the faculty of bodily perception; sensory systems associated with the body; includes skin senses and proprioception and the internal organs