Thinking characterized by a focus on present objects and immediate experience with an inability to use concepts or make and understand generalizations.
Thinking characterized by immediate experience, rather than abstractions. It may occur as a primary, developmental defect, or it may develop secondary to organic brain disease or schizophrenia. Seen in persons who have never developed the ability to generalize.
Thinking in simple, tangible, real, or nonidealized terms, without drawing relations between objects or concepts.