What is cognition? Cognition is the act of knowing or thinking. It includes the ability to choose, understand, remember and use information. Cognition includes: Attention and concentration Processing and understanding information Memory Communication Planning, organizing, and assembling Reasoning, problem-solving, decision-making, and judgment Controlling impulses and desires and being patient How does TBI affect cognition and what can be done about it? After a TBI it is common for people to have problems with attention, concentration, speech and language, learning and memory, reasoning, planning and problem-solving. – See more at: http://www.msktc.org/tbi/factsheets/Cognitive-Problems-After-Traumatic-Brain-Injury#sthash.jGFPx3bi.dpuf
Also see https://www.headway.org.uk/Cognitive.aspx at the excellent Headway UK resource.