Seyedeh Neda Gadamagahi Sani, Alireza Moradi, Reza Shalbaf, ,
Volume 11, Issue 1 (Volume11, Issue 1 2023)
Abstract
Attention Deficit Hyperactivity Disorder is a type of neurodevelopmental disorder characterized by deficits in cognitive skills and emotional self-control. Many studies have pointed out the poor functioning of the frontal region in hyperactive patients. Increasing hemodynamic changes in the frontal region of these children can reduce the symptoms of the disorder. Goal: The purpose of this research is to investigate the changes in the concentration of hemoglobin (Hb) in the frontal region of these children during the cognitive activity of the computerized continuous performance test. Method: The current research is a clinical trial study with a pre-test-post-test-follow-up design. From 30 hyperactive children six to eight years old, fNIRS recording was performed along with computerized continuous performance test as a pre-test. Then they were divided into two groups of 15 people by simple random method. The first group underwent CES intervention and the second group underwent Captain Log's computerized cognitive intervention for 14 half-hour sessions, and after the interventions, the amount of hemodynamic changes in the frontal area of all participants was recorded by fNIRS along with computerized continuous performance test as a post-test. was taken Finally, after completing the intervention period 4 weeks later, the participants were followed up with the above tests. Findings: The average difference in oxygen uptake from pre-test to post-test in CES group was significant (p<0.01), but this difference was not significant from post-test to follow-up (p>0.05). In the captain log group, the difference in the average amount of oxygen absorption from pre-test to follow-up was significant based on the results of the t-test (p<0.05). The results indicate the non-significance of the effect of group interaction on time for the oxygen uptake variable, there is no significant difference between the CES and Captain Log groups in the amount of change in oxygen uptake from the pre-test session to the post-test session and follow-up (p>0.05).Conclusion: Based on the findings of this research, it can be concluded that CES intervention and Captain Log cognitive software intervention are effective treatments to increase the hemodynamic changes in the prefrontal region of hyperactive children and can also improve persistent visual attention deficit in these children.
Mahdiyar Mokhlespour Esfahani, Alireza Moradi, Mehrdad Dadgostar, Nooshin Pourbaghi, Mostafa Khanzadi,
Volume 13, Issue 1 (Volume 13, Issue 1, Spring 2025 2025)
Abstract
The aim of this study was to assess the moral development of civil engineers using Kohlberg’s moral dilemma stories alongside simultaneous recording of brain activity. Thirty right-handed male engineers with at least three years of professional experience participated in the study. Hemodynamic activity was measured using near-infrared spectroscopy (NIRS) in the ventromedial prefrontal cortex (VMPFC), ventrolateral prefrontal cortex (VLPFC), and dorsolateral prefrontal cortex (DLPFC) across three phases: story reading, question answering, and prioritization. Data were analyzed using the Mann–Whitney U test. Results indicated that HbO2 levels in the right DLPFC and left VLPFC during story reading were significantly higher in engineers with higher moral judgment scores (p = 0.047 and p = 0.026). In the prioritization phase, Hb levels in the right VLPFC were significantly elevated in participants with lower moral scores (p = 0.015). These findings confirm the critical role of prefrontal regions in moral judgment processing, consistent with previous research. Although NIRS offers several advantages, its limited depth of measurement is a constraint. This study provides novel neurobiological evidence aligned with moral dilemma questionnaires, representing a step forward in predicting engineers’ moral development and enabling the use of brain data for artificial intelligence–based prediction. Future research is recommended to include female engineers, left-handed individuals, and broader brain regions.
