Cognition encompasses perception, knowledge, problem solving, judgment, memory and:

1. The definition of cognition lists its component processes explicitly. 2. Simply put, cognition is thinking. 3. It encompasses the processes associated with perception, knowledge, problem solving, judgment, language, and memory. 4. Digestion and circulation are physiological rather than cognitive processes. _Source: OpenStax Psychology 2e (CC BY 4.0), Ch 7 'Thinking and Intelligence', sections 7.1-7.5_