This clinical trial to determine the efficacy of memantine to improve cognitive deficits specific learning disorders among 94 children 12-8 years referred to Amir Kabir hospital psychiatric diagnostic criteria for disorders that have specific learning methods available (easy) through diagnostic interview based on V MSD is performed by physician specialty. Patients assigned to two groups, Mma Ntyn observations and placebo are randomly like blocks instead of patrol. Two tablets of memantine daily for three months in 47 patients in the first group and so on placebo in 47 patients in the second group will be given daily for three months. To measure cognitive deficits in patients both before and after treatment, outcome measures, including sustained attention and working memory selective attention by the continuous performance test, Stroop Test and Digit Span forward and reverse and Kessler and seats cubes measuring and Similarly, following treatment, both of these variables will be measured.
Inclusion criteria: age 8-12 years diagnosed patients by physician specialty pure LD; no organic disorders, psychotic, mood, anxiety and combined, have normal intelligence More than 85
Exclusion criteria: mental retardation, organic problems (auditory, visual, etc.); psychotic problems, a disorder ADHD; a Pervasive Developmental Disorder, not wanting to continue treatment