TY  - JOUR
PY  - 2011//
TI  - Spatial biases in peripersonal space in sighted and blind individuals revealed by a haptic line bisection paradigm
JO  - Journal of experimental psychology: human perception and performance
A1  - Cattaneo, Zaira
A1  - Fantino, Micaela
A1  - Tinti, Carla
A1  - Pascual-Leone, Alvaro
A1  - Silvanto, Juha
A1  - Vecchi, Tomaso
SP  - 1110
EP  - 1121
VL  - 37
IS  - 4
N2  - Our representation of peripersonal space does not always accurately reflect the physical world. An example of this is pseudoneglect, a phenomenon in which neurologically normal individuals bisect to the left of the veridical midpoint, reflecting an overrepresentation of the left portion of space compared with the right one. Consistent biases have also been observed in the vertical and radial planes. It is an open question whether these biases depend on normal visual experience for their occurrence. Here we systematically investigated this issue by testing blindfolded sighted and early blind individuals in a haptic line bisection task. Critically, we found a robust leftward bias in all participants. In the vertical and radial planes, sighted participants showed a consistent downward and proximal bias. Conversely, the directional bias in blind participants was dependent on the final movement direction; thus, there was no general bias in either direction. These findings are discussed in terms of different reference frames adopted by sighted and blind participants when encoding space. (PsycINFO Database Record (c) 2011 APA, all rights reserved).<p /> <p>Language: en</p>
LA  - en
SN  - 0096-1523
UR  - http://dx.doi.org/10.1037/a0023511
ID  - ref1
ER  -