Seeing and Feeling for Self and Other: Proprioceptive Spatial Location Determines Multisensory Enhancement of Touch

Autor/inn/en	Cardini, Flavia; Haggard, Patrick; Ladavas, Elisabetta
Titel	Seeing and Feeling for Self and Other: Proprioceptive Spatial Location Determines Multisensory Enhancement of Touch
Quelle	In: Cognition, 127 (2013) 1, S.84-92 (9 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0010-0277
DOI	10.1016/j.cognition.2012.12.010
Schlagwörter	Tactual Perception; Stimuli; Visual Stimuli; Human Body; Interaction; Spatial Ability; Sensory Experience + Suchen Sie Ihr Suchwort? Taktile Wahrnehmung; Anreizsystem; Menschlicher Körper; Interaktion; Räumliches Vorstellungsvermögen; Sinnerfahrung
Abstract	We have investigated the relation between visuo-tactile interactions and the self-other distinction. In the Visual Enhancement of Touch (VET) effect, non-informative vision of one's own hand improves tactile spatial perception. Previous studies suggested that looking at "another"person's hand could also enhance tactile perception, but did not systematically investigate the basis of this effect. In Experiment 1 we manipulated the spatial location where one's own or another person's hand was seen. Viewing one's own hand enhanced tactile orientation discrimination relative to viewing a neutral object, but only when the visual image of the hand was spatially aligned with the actual location of the participant's unseen hand, as signaled by proprioception. In contrast, viewing another person's hand produced enhanced tactile perception irrespective of spatial location. In Experiment 2, we used a multisensory stimulation technique, known as Visual Remapping of Touch (VRT), to reduce the spatial misalignment between the visual and proprioceptive locations of the hand. Participants saw an image of their own hand "being touched" at the same time as the tactile stimulation, which reduces perceived misalignment. This spatial adaptation procedure caused the VET effect to return. Our results suggest that multisensory modulation of touch depends on a representation of one's own body that is fundamentally spatial in nature. In contrast, representation of others is free from this spatial constraint. (Contains 5 figures.) (As Provided).
Anmerkungen	Elsevier. 3251 Riverport Lane, Maryland Heights, MO 63043. Tel: 800-325-4177; Tel: 314-447-8000; Fax: 314-447-8033; e-mail: JournalCustomerService-usa@elsevier.com; Web site: http://www.elsevier.com
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10