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Psychological, Neurophysiological, and Mental Factors Associated With Gamma-Enhancing Neurofeedback Success
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نویسنده
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Khodakarami Zeynab ,Firoozabadi Mohammad
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منبع
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Basic And Clinical Neuroscience - 2020 - دوره : 11 - شماره : 5 - صفحه:701 -714
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چکیده
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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.
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کلیدواژه
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Neurofeedback ,Brain-Computer Interface (Bci)-Illiteracy ,Performance Prediction ,Fluid Intelligence ,Mental Strategies
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آدرس
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Islamic Azad University, Science And Research Branch, Department Of Biomedical Engineering, Iran, Tarbiat Modares University, Faculty Of Medical Sciences, Department Of Medical Physics, Iran
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پست الکترونیکی
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pourmir@modares.ac.ir
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Authors
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