REVISED AND ELABORATED EDITION OF INTRUMENTAL ENRICHMENT:AN INTERVENTION PROGRAM FOR COGNITIVE MODIFIABILTY. PART 1 CONTAINS NEWLY ARTICULATED DESCRIPTIONS OF THE THEORY OF SCM, THE COGNITIVE FUNCTIONS, COGNITIVE MAP, AND PARAMETRS OF MLE. PART 2 PRESENTS FULLY UPDATED DESCRIPTIONS OF THE INTSTRUMENTAL ENRICHMENT STANDARD AND BASIC PROGRAMS, WITH APPLICATIONS OF THE POPULATIONS (ADULTS, VISION IMPAIRED, ETC)