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The central concept of the information processing theory of problem solving is search. In contrast, the central concept of the Gestalt theory of problem solving is restructuring. Both concepts express important aspects of human thinking. A theory is presented which interprets restructuring and the related concept of insight in information processing terms. It is hypothesised that restructuring is a change in mental representation which affects the applicability of problem solving operators. Insight is hypothesized to occur when restructuring of the search space brings the goal state within the horizon of mental look‐ahead.
Stellan Ohlsson (1984) studied this question.