*4.1.1 Study description: exp-majdak*

Majdak et al. [14], a 2010 study on the impact of various reporting methods during training with their individual HRTF. 10 participants trained on auditory localisation: 5 reporting perceived localisation positions with their hand, 5 with their head. Each participant completed 600–2200 localisation trials over a span of 2–32 d. Training and evaluation were performed within each trial: a session was composed of 50 trials, completed in 20–30 min. Each trial consisted of a localisation task with feedback, testing participants on 1380 positions overall, distributed on a sphere, using a 500 ms burst of white noise as stimulus. As the reporting method proved to have only a small impact on training efficiency, the 10 participants have hereafter been aggregated in a single group (**grp-majdak-indiv**), focusing the analysis on the impact of HRTF quality on performance evolution.
