Sohrab Amiri, Amir Ghasemi Navvab, Mohammad H. Abdollahi,
Volume 2, Issue 4 (2-2015)
Abstract
The aim of the present study was to investigate the amount of performance in working memory, and also comparing the dimensions of behavioral activation system (BAS) and behavioral inhibition system (BIS) in different levels of stress. For this purpose, first, 560 persons of high school adolescent students (including boys and girls) of Hamadan's schools were selected through a multistage cluster sampling. After the initial data analysis, 87 of them, based on final score distribution (Z Standard) were chosen. Finally, in order to test the hypothesis of this study, participants were have studied to measure working memory and behavioral inhibition and behavioral activation systems. The collected data were analyzed using a Multivariate analysis of variance, ANOVA and post hoc tests. Results showed that there is no significant interaction between gender and stress variables considering the working memory and behavioral inhibition and activation system. On the other hand, results showed that high stress levels can lead to a decline in working memory function and participants with high levels of stress were also at higher level in terms of activity of behavioral activation system (BAS) and behavioral inhibition system (BIS).
Parisa Oryadi, Habib Hadianfard, Nezamaddin Ghasemi,
Volume 7, Issue 1 (volume7, Issue 1 2019)
Abstract
Treatment of attention deficit / hyperactivity disorder as the most common neurodevelopmental disorder has tended toward the use of computer-based technologies. The purpose of this study was to investigate the effectiveness of computer-based cognitive rehabilitation on the executive functions of children with attention deficit / hyperactivity disorder. The study was a quasi-experimental with pretest posttest and 45 days follow up with control group. The statistical population consisted of all students with attention deficit / hyperactivity disorder in Shiraz elementary school in winter of 2019. 32 students were selected as available sample and replaced in experimental and control groups. The Tower of London test, the Stroop test, and the Wisconsin Card Sorting Test were used. The experimental group received cognitive rehabilitation based on computer games three times a week (15 minutes per game for a total of 30 minutes) and the control group was placed on the waiting list. Data were analyzed by SPSS-24 software using repeated measures analysis of covariance (ANOVA). The results showed that computer-based rehabilitation had a significant effect on the executive functions of children with attention deficit / hyperactivity disorder (Sig <0.05). Experimental group showed improvement in cognitive function after intervention and planning, organization, inhibition and cognitive flexibility variables were observed after 45 days of intervention. Therefore, it can be said that cognitive rehabilitation is based on effective and sustained therapeutic computer games.
