The six articles in this series address different aspects of cognitive
skills and behavioral functioning commonly described as executive fun
ctions. These functions actually represent several aspects of cognitio
n, including the allocation of cognitive resources, planning, problem
solving, response inhibition, self-monitoring and regulation, and the
maintenance of mental sets. Executive functions are prominent componen
ts of the construct of working memory (Pennington, 1994). In developme
ntal psychology, executive functions are typically subserved under the
rubric of metacognition. In cognitive neuroscience, models of attenti
on and memory make liberal use of constructs described in this special
issue under executive functions. Historically, neuropsychology has vi
ewed executive functions as virtually interchangeable with the functio
ns of the frontal lobes.