[...]The present explication differs substantially from the initial application of Bronowski's ideas to ADHD (Barkley, 1994, 1995 ) in the following respects: (a) the incorporation of portions of Fuster' s ( 1989, 1995 ) theory and the views of others (Knights, Grabowecky, & S cabini, 1995; Milner, 1995) on the neuropsychological functions subserved by the prefrontal cortex into a new hybrid model; (b) the inclusion of more precise definitions of behavioral inhibition and self-regulation; (c) the addition of a motor control-fluency- syntax component to the model;[...]