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:: Volume 17, Issue 5 (Iranian South Medical Journal 2014) ::
Iran South Med J 2014, 17(5): 834-846 Back to browse issues page
The effect of individual upper alpha band enhancing neurofeedbac kon reaction-time as an indicator of short-term memory in women employee’s
Mersedeh Jahanseir 1, Seyed Mohammad Firooz Abadi 2, Majid Ghoshouni 3, Ali Motie Nasrabadi 4
1- Department of Medical Engineering, School of Medical Engineering, Islamic Azad University, Tehran Science and Research Branch, Tehran, IRAN
2- Department of Medical Physics, School of Medicine, Tarbiat Modarres University of Tehran, Tehran, IRAN , pourmir@modares.ac.ir
3- Department of Medical Engineering, School of Engineering, Islamic Azad University, Mashhad Branch, Mashhad, IRAN
4- Department of Medical Engineering, School of Engineering, Shahed University of Tehran, Tehran, IRAN
Abstract:   (2531 Views)

Background: In neurofeedback systems, people are able to reinforce or hinder their basic EEG rhythms according to operant conditioninin recent studies the effect of neurofeedback training on improvement of working memory has been shown on the healthy subjects. Disadvantage of neurofeedback is the high number of training sessions and high cost. In previous studies, alpha band power within (8-12 Hz) has been considered for all subjects. Previous research reached the conclusion that by using individual upper alpha in neurofeedback, learning rate will increase, so the training sessions and the cost of training will be reduced. Material and Methods: In this study, all participants were female, 10 adults (10 women, mean age 33.8 years, SD=3.56 years). Randomly assigned to control and test group, five in test group and five in control group. Each subject performed the memory test four times, two times before the start of the first neurofeedback training and two times after the end of the last neurofeedback session. Eight training sessions were held, each session had three trials. Results: Discriminate response to the color of the drawing, as well as reaction time hadsignificant effects for test group (p<0.05), but had no significant effects for control group (p>0.05). Before and after eight training sessions by individual upper alpha power neurofeedback, reaction time of discriminate response to the color of the drawing for test group decreased and had significant effects (p<0.05). However, There was no significant effects in the control group (p>0.05). Conclusion: Increasing relative individual upper alpha power, caused by neurofeedback training during eight sessions, indicated that this method increases the memory of women employees, and improves the ability of discriminative response to the color (red & green) of the drawing as well as reducing reaction time.

Keywords: alpha band, memory improvement, reaction time, neurofeedack
Full-Text [PDF 622 kb]   (1112 Downloads)    
Type of Study: Original | Subject: General
Received: 2014/10/15 | Accepted: 2014/10/15 | Published: 2014/10/15
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Jahanseir M, Firooz Abadi S M, Ghoshouni M, Motie Nasrabadi A. The effect of individual upper alpha band enhancing neurofeedbac kon reaction-time as an indicator of short-term memory in women employee’s. Iran South Med J. 2014; 17 (5) :834-846
URL: http://ismj.bpums.ac.ir/article-1-597-en.html


Volume 17, Issue 5 (Iranian South Medical Journal 2014) Back to browse issues page
دانشگاه علوم پزشکی بوشهر، طب جنوب ISMJ

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