Whose hand is this? Handedness and visual perspective modulate self/other discrimination.
We required healthy subjects to recognize visually presented one's own or others' hands in egocentric or allocentric perspective. Both right- and left-handers were faster in recognizing dominant hands in egocentric perspective and others' non-dominant hand in allocentric perspective. These findings demonstrated that body-specific information contributes to sense of ownership, and that the "peri-dominant-hand space" is the preferred reference frame to distinguish self from not-self body parts.
Conson
Massimiliano
M
Neuropsychology Laboratory, Department of Psychology, Second University of Naples, via Vivaldi 43, 81100, Caserta, Italy. massimiliano.conson@unina2.it
Aromino
Anna Rita
AR
Trojano
Luigi
L
D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001828:Body Image; D004192:Discrimination, Psychological / Q000502:physiology*; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006225:Hand / Q000294:innervation / Q000502:physiology*; D006801:Humans; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010775:Photic Stimulation / Q000379:methods; D011930:Reaction Time / Q000502:physiology; D055815:Young Adult