Mental process such as knowing, perceiving, and understanding.

In psychology it is used to refer to the mental processes of an individual, with particular relation to a view that argues that the mind has internal mental states (such as beliefs, desires and intentions) and can be understood in terms of information processing, especially when a lot of abstraction or concretization is involved, or processes such as involving knowledge, expertise or learning for example are at work.

(psychology) the performance of some composite cognitive activity; an operation that affects mental contents; "the process of thinking"; "the cognitive operation of remembering"

a mental route of absorbing knowledge and subsequent recollection

higher mental functioning; learning, memory, imagination, comprehension, decision making. The means by which an individual becomes aware of people, objects and situations in the environment and their subjective, symbolic meaning.