Editing Situated cognition (section)

===Perception (variance/invariance)===
The work of Gibson (1986) in the field of visual [[perception]] greatly influences situated cognition.<ref name="Greeno, 1994"/> Gibson argued that visual perception is not a matter of the eye translating inputs into symbolic representation in the brain. Instead the viewer perceives and picks up on the infinite amount of information available in the environment. Specifically, an agent perceives affordances by discovering the variants, what changes, and more importantly the invariants, what does not change across different situations. Given a specific intention (or intentional set),{{clarify|date=October 2011}} perceptions of invariants are co-determined by the agent and the affordances of the environment, and are then built upon over time.{{clarify|date=October 2011}}