Feb 12th 2021 - a preprint on the neurofeedback was published!
Resting-state brain activity can predict target-independent aptitude in fMRI-neurofeedback training
Takashi Nakano, Masahiro Takamura, Haruki Nishimura, Maro Machizawa, Naho Ichikawa, Atsuo Yoshino, Go Okada, Yasumasa Okamoto, Shigeto Yamawaki, Makiko Yamada, Tetsuya Suhara, Junichiro Yoshimoto
bioRxiv