A Double-Blind, Sham-Controlled Trial Investigating Individualized Alpha Neurofeedback Plus Cognitive Training in Paediatric Brain Tumour Survivors

\- Neurofeedback Training : Feedback is based on individualized alpha band power. Participants see a game-like display (for instance, a plane) that reflects their alpha activity. Excessive EMG (muscle tension) causes performance drops, encouraging relaxation.

\- Cogmed Training : Participants complete adaptive tasks focusing on working memory. The difficulty adjusts in real time based on performance.

The sham neurofeedback protocol was identical to the verum neurofeedback protocol except that the animation (horizontal plane movement) was based on the EEG results of another participant. EMG-based feedback will still be provided for the sham condition