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Creative Insight: The Redistribution Theory   105


                    A less                                 Goal
                    constrained                            state
                    initial state






                                                              Dead-end
                                                              states


                           Initial
                           state
                                            Initial, overly
                                            constrained
                                            search space
            Figure 4.3.  The relation between insight and search: Insight requires drawing back to
            an initial state that generates a less constrained search space.

            assumptions which restrict his sector of exploratory activity … and as long
            as he continues actively at work in this section he does not escape from these
            assumptions.” 39
               Problems that end up on the psychologist’s list of insight problems have
            a high probability of triggering an initial representation that in turn has a
            low probability of activating those knowledge elements that are needed for
            the solution, even when those elements are present in memory. A problem
            becomes an insight problem for a person if it is misleading. The person’s prior
            knowledge accidentally matches the features of the problem so as to suggest
            that the problem should be understood in one way, whereas it would be more
            productive to think of it some other way. The resulting solution space is overly
            constrained and excludes the desired solution; see Figure 4.3.
               Constraining contacts between prior experience and particular visual or
            verbal problem features are indeed common in the classical insight problems.
                                                                           40
            Consider once again the Hat Rack Problem: Construct a hat rack out of 2-by-4
            wooden boards and a C-clamp. The wedge solution to this problem consists of
            two boards that are wedged between floor and ceiling and held in place with
            the clamp; the hat is hung on the handle of the clamp. Why might this solution
            be hard to think of? Everyday experience provides few examples of construc-
            tions that rely on the ceiling as a source of support, but many examples where
            2-by-4s are used to prop something up. This leads most people to attempt a
            stable construction that stands on the floor. Visual attention is rarely directed
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