Lashley trained rats on a variety of mazes, then made deep cuts in their cortexes. He found that the cuts produced ____

In his book Totem and Taboo, Freud traced the origin of civilization to the time when

A) the penis became a symbol of uncivilized behavior. B) faces were carved into religious poles (phallic-like). C) brothers came together and murdered the primal father of the tribe. D) infantile amnesia characterized adults. E) the first ape became lustful of his mother.

Using only the materials shown, problem solvers are asked to mount the candle on the wall. Few people consider using the tack box to hold the candle. What concept explains why most people fail to solve this problem?

A. Divergent thinking B. Availability heuristic C. Representative heuristic D. Functional fixedness