explicitly show if, for example, you lost your concentration and, thus, reminds you of getting back to the task. in this scenario, neurofeedback works similar to a mirror while practicing dancing. by watching yourself in realtime you can consciously adapt your movement according to the „feedback“ of the mirror. while there is a plethora of small studies cautiously indicating the efficacy of neurofeedback large scale, standardized studies are missing. various details are expected to play a role, such as the type of neurofeedback, the training protocol (position and frequency bands), the feedback presented to the trainee, frequency and consistency of the training, the interaction between trainer and trainee, employed mental strategies, and many more. in the end, it is also expected that some people fall under the category of non-responders which do not yield benefits from the training. all these variables indicate that a standardized control will be similarly challenging as scientifically proving the effect of speech therapy.