perception vs sensory activity

perception and sensory activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
perception	Yes	No	No	No
sensory activity	Yes	No	No	No

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

perception (noun)	sensory activity (noun)
becoming aware of something via the senses	activity intended to achieve a particular sensory result
the process of perceiving
the representation of what is perceived; basic component in the formation of a concept
a way of conceiving something
knowledge gained by perceiving