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Basic and Clinical Neuroscience، جلد ۱۱، شماره ۵، صفحات ۷۰۱-۷۱۴
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عنوان انگلیسی Psychological, Neurophysiological, and Mental Factors Associated With Gamma-Enhancing Neurofeedback Success
چکیده انگلیسی مقاله Introduction: Regarding the neurofeedback training process, previous studies indicate that 10%-50% of subjects cannot gain control over their brain activity even after repeated training sessions. This study is conducted to overcome this problem by investigating inter-individual differences in neurofeedback learning to propose some predictors for the trainability of subjects. Methods: Eight healthy female students took part in 8 (electroencephalography) EEG neurofeedback training sessions for enhancing EEG gamma power at the Oz channel. We studied participants' preexisting fluid intelligence and EEG frequency sub-bands' power during 2-min eyes-closed rest and a cognitive task as psychological and neurophysiological factors, concerning neurofeedback learning performance. We also assessed the self-reports of participants about mental strategies used by them during neurofeedback to identify the most effective successful strategies. Results: The results revealed that a significant percentage of individuals (25% in this study) cannot learn how to control their brain gamma activity using neurofeedback. Our findings suggest that fluid intelligence, gamma power during a cognitive task, and alpha power at rest can predict gamma-enhancing neurofeedback performance of individuals. Based on our study, neurofeedback learning is a form of implicit learning. We also found that learning without a user's mental efforts to find out successful mental strategies, in other words, unconscious learning, lead to more success in gamma-enhancing neurofeedback. Conclusion: Our results may improve gamma neurofeedback efficacy for further clinical usage and studies by giving insight about both non-trainable individuals and effective mental strategies.
کلیدواژه‌های انگلیسی مقاله Neurofeedback, Brain-Computer Interface (BCI)-illiteracy, Performance prediction, Fluid intelligence, Mental strategies
نویسندگان مقاله | Zeynab Khodakarami
Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.


| Mohammad Firoozabadi
Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
نشانی اینترنتی http://bcn.iums.ac.ir/browse.php?a_code=A-10-1878-1&slc_lang=en&sid=1
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Clinical Neuroscience
نوع مقاله منتشر شده Original
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