Figure 6From: Psycho-physiological assessment of a prosthetic hand sensory feedback system based on an auditory display: a preliminary studyNASA TLX scores without outliers. a) Subject 1 and Subject 8 were the only ones that reported that the mental effort in the VF modality was lower than in the other 2 modalities, which were considered to be similarly difficult. b) Considering Subject 1 and Subject 8 as outliers, the results showed the same tendency, but with a significant effect between modalities.Back to article page