“…So, in line with the results of previous studies, which found that two hands are better than one (Craig, 1985;Heller, Hasselbring, Wilson, Shanley, & Yoneyama, 2004), we would expect that one-fingertip perceptions would be less powerful than the perceptions coming from 10 fingers of the two hands to build a cognitive map that should be able to integrate information in both the ego and allocentric frames of reference. Millar (1994) and Gentaz and Gaunet (2006) proposed that the use of a haptic modality to encode small-scale space is based mainly on the memorization of the movement of kinesthetic information. Hatwell, Streri, and Gentaz (2003) argued that the quality of mental spatial images is dependent on the depth, exposure, and detail of the encoding.…”