Objectives: The aim of this research is designing a computerized program, in game format, for working memory training in mild intellectual disabled children. Methods: 24 students participated as test and control groups. The auditory and visual-spatial WM were assessed by primary test, which included computerized Wechsler numerical forward and backward subtests, and secondary tests, which contained three parts: dual visual-spatial test, auditory test, and a onesyllable word recalling test.
Results: The results showed significant differnces between working memory capacity in the intellectually disabled children and normal ones [p-value <0.00001] . After using the computerized working memory training, Visual-spatial WM, auditory WM, and speaking were improved in the trained group. The mentioned four tests showed significant differences between pre-test and post-test. The trained group showed more improvements in forward tasks. The trained participant's processing speed increased with training.