Lists of words to which individuals are asked to respond ascertaining the conceptual meaning held by the individual.

Tests designed to assess neurological function associated with certain behaviors. They are used in diagnosing brain dysfunction or damage and central nervous system disorders or injury.

The subject's ability to connect 25 numbered and lettered circles in sequence in a specific length of time. A score of 12 or below is suggestive of organic brain damage.

Intellectual or mental process whereby an organism obtains knowledge.

Disturbances in mental processes related to learning, thinking, reasoning, and judgment.