ABSTRACT
Even with the renewed interest in studying information PS during the last 30 years, why is it that today we still do not have an accepted working model of human information PS that is integrated into larger theories of cognitive operations of the brain? As seen in chapter 1, the one exception is the study of intelligence, but no clear consensus appears on the horizon despite over 100 years of inquiry. There are often fleeting allusions to PS in some theoretical discussions of other human mental facuIties, particularly with respect to developmental theories (see Cowan, Elliot, Saults, Nugent, Bomb, & Hismjatullina, 2006). Theoretical perspectives on working memory have perhaps developed like few other cognitive constructs over the last 40 years. However, in Baddeley's recent review of the human working memory, PS is mentioned only once, and only as an aside (Baddeley, 2003). Baddeley himself recognizes that he has not incorporated PS in his theoretical formulations of working memory (Personal communication, 2006). In reality, clinical and cognitive science today lack an integrative model of perhaps one of the most elemental yet essential workings of the human mind; the speed with which mental operations is conducted.
