Figure 1.

Schematic illustration of the experimental design used. All participants performed all tasks blindfolded. In the pre-test and post-test, participants performed sound localization tasks divided in two sessions of 36 trials each. In the training phases, participants were divided into two groups of either restricted or unrestricted head movement. In addition, both groups were further divided into two subgroups. The training group performed sound localization training with accurate proprioceptive feedback for five days within a 10-day period; the control group did the training without feedback. During the training phases, all participants were asked to conduct sound localization tasks of 36 trials.