Effects of short neurofeedback training on event-related potential components and subjective controllability in healthy individuals

[Speaker] Shinoda, Haruo:1
[Co-author] Akutsu, Kota:1, Nakakuki, Satomi:1, Shinoda, Naoko:2, Ishi, Masahiro:3, Suzuki, Kota:4
1:Rissho University (Japan), 2:Shinshu University (Japan), 3:Akita Vocational Center (Japan), 4:National Center of Neurology and Psychiatry (Japan)

In the present study, we evaluated the effect of short neurofeedback (NF) training for β1 power (increasing the power to 15-18 Hz) in healthy adults using introspective reports and objective indices. Sixteen right-handed adults participated in eight sessions of NF training over approximately one month. They were assigned to the β1 training or sham control group. To assess the subjective effect of NF training, we analyzed narrative sentences. With respect to objective indices, EEGs and ERPs were computed during training sessions. Using text mining, the improvement in controllability was simultaneously identified according to the β1 group training schedule. Moreover, N2 enhancement at Fz in a flanker task was evident in the β1 group before training rather than after training. These findings suggest that the subjective improvement in controllability accompanied changes in the objective physiological indices of attentional function during short NF training in adults.
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