comprehension vs perception

comprehension

noun
  • Thorough understanding. 

  • The inclusion of nonconformists within the Church of England. 

  • The totality of intensions, that is, attributes, characters, marks, properties, or qualities, that the object possesses, or else the totality of intensions that are pertinent to the context of a given discussion. 

  • A compact syntax for generating a list in some functional programming languages. 

perception

noun
  • Conscious understanding of something. 

  • That which is detected by the five senses; not necessarily understood (imagine looking through fog, trying to understand if you see a small dog or a cat); also that which is detected within consciousness as a thought, intuition, deduction, etc. 

  • Vision (ability) 

  • The organisation, identification and interpretation of sensory information. 

  • Acuity 

How often have the words comprehension and perception occurred in a corpus of books? (source: Google Ngram Viewer )