Epistemological perspectives in the scientific study and evaluation of executive function.

Abstract

In this article, epistemological perspectives that have shaped and affected the scientific quest for understanding what neuropsychologists term “executive functions” are reviewed. Executive functions refer to the control functions of cognition and behavior. The underlying thesis of the paper is that one’s epistemological orientation determines how one sees the interaction between brain functions and our status in the world. Each different orientation thus carries with it implications with regard to how executive functions operate, as well as how, therefore, one should try to assess them. Until recently, these functions were approached through two primary epistemological points of view. One is analytic, which has its roots in the positivistic movement. The other approach is synthetic, otherwise known as “romantic science”, and forms the basis of the work of the prominent Russian neuropsychologist A.R. Luria. A third epistemological perspective, articulated under the umbrella of ‘embodied cognition’ approaches, has been advanced in the last 20 years, and is associated most closely with the work of Francisco Varela. A review of, and reflection on how these perspectives have affected research and clinical practice in neuropsychology is provided.