“…This result corresponds to previous findings suggested that a significant percent of the population (10-50%) are unable to influence their brain activity (Alkoby et al, 2017;Allison and Neuper, 2010;Jeunet et al, 2016). In previous studies, NF treatment efficiency was successfully predicted using behavioral factors such as control belief (Witte et al, 2013), motivation, mood (Nijboer et al, 2010(Nijboer et al, , 2008, memory (Daum et al, 1993;Roberts et al, 1989;Wangler et al, 2011) or by EEG markers such as resting-state alpha (Wan et al, 2014) or beta (Nan et al, 2015) (for detailed review see Alkoby et al, 2017). However, in our sample prediction was unsuccessful using behavioral, neural or clinical factors.…”