The recognition that human minds/brains are finite systems with limited resources for computation has led some researchers to advance the "Tractable Cognition thesis": Human cognitive capacities are constrained by computational tractability. This thesis, if true, serves cognitive psychology by constraining the space of computational-level theories…

Designed to determine whether abstract and concrete concepts are classified similarly, this study used three separate experiments to explore the vertical and horizontal dimensions used by computer scientists to categorize the common concepts of their field. It found that concrete concept categorization operates over a wider range than previously…