RT Journal Article SR Electronic A1 Škobrtal, Pavel A1 Novotný, Miroslav A1 Novotný, Miroslav T1 The Effectiveness of the Cognitive Training Via the Internet JF Cognitive Remediation Journal YR 2019 VO 8 IS 1 SP 4 OP 8 DO 10.5507/crj.2019.001 UL https://cognitive-remediation-journal.com/artkey/crj-201901-0001.php AB The deficit of working memory is considered to be a central deficit in ADHD that is responsible for cognitive and behavioral problems. It is related to the defective function of the frontal cortex. The concurrent effect of working memory training is the impulsivity decrease in individuals suffering from ADHD. Patients with a diagnosed hyperkinetic disorder were first examined using IVA + Plus and Conners' Continuous Performance Test II. Then they underwent working memory training using COGMED program. Subsequently, IVA + Plus and Conners' Continuous Performance Test II were performed again. We managed to prove a statistically significant improvement especially in the visual part of the working memory.