A field experiment using QEEG measurements to track brain activity on Mount Rtanj, one of the best known mysteries of the Balkans. Filmed for the YouTube channel of Srđan Zirojević.

On Mount Rtanj, a place surrounded for decades by stories of unusual energies, brain activity was measured in the field.

Instead of speculation, the team reached for QEEG - quantitative analysis of the electroencephalogram. The device records the electrical activity of the brain and makes it possible to compare states before, during and after time spent at the location.

The video is documentary in style and runs for about 32 minutes.

Watch the video on YouTube (in Serbian)

Source: YouTube channel Srđan Zirojević, 24 May 2026. Original title: "Testirali smo mozak na najmisterioznijoj planini Balkana | VLOG".