“…Secondly, biofeedback could be efficacious apart from specific effects because of learned self-regulation of a physiological activity. The information given to the patients about the neurophysiological background of epilepsy, the proposition to treat them with a psychophysiological and a electrophysiological method, as well as the therapeutic relationship established once a week during 12 weeks all likely contributed to the positive effects of the training, since positive expectations and the experience of self-efficacy are important nonspecific variables in biofeedback [46] and the clinical course of epilepsy [14,15]. Moreover, the improvements in anxiety, negative affect, and depressed mood symptoms in our study could be an intermediate variable to explain the effect of biofeedback in seizure frequency.…”