Your place or mine: shared sensory experiences elicit a remapping of peripersonal space
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
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Yn: Neuropsychologia, Cyfrol 70, 04.2015, t. 455-61.
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
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TY - JOUR
T1 - Your place or mine
T2 - shared sensory experiences elicit a remapping of peripersonal space
AU - Maister, Lara
AU - Cardini, Flavia
AU - Zamariola, Giorgia
AU - Serino, Andrea
AU - Tsakiris, Manos
N1 - Copyright © 2014 Elsevier Ltd. All rights reserved.
PY - 2015/4
Y1 - 2015/4
N2 - Our perceptual systems integrate multisensory information about objects that are close to our bodies, which allow us to respond quickly and appropriately to potential threats, as well as act upon and manipulate useful tools. Intriguingly, the representation of this area close to our body, known as the multisensory 'peripersonal space' (PPS), can expand or contract during social interactions. However, it is not yet known how different social interactions can alter the representation of PPS. In particular, shared sensory experiences, such as those elicited by bodily illusions such as the enfacement illusion, can induce feelings of ownership over the other's body which has also been shown to increase the remapping of the other's sensory experiences onto our own bodies. The current study investigated whether such shared sensory experiences between two people induced by the enfacement illusion could alter the way PPS was represented, and whether this alteration could be best described as an expansion of one's own PPS towards the other or a remapping of the other's PPS onto one's own. An audio-tactile integration task allowed us to measure the extent of the PPS before and after a shared sensory experience with a confederate. Our results showed a clear increase in audio-tactile integration in the space close to the confederate's body after the shared experience. Importantly, this increase did not extend across the space between participant and confederate, as would be expected if the participant's PPS had expanded. Thus, the pattern of results is more consistent with a partial remapping of the confederate's PPS onto the participant's own PPS. These results have important consequences for our understanding of interpersonal space during different kinds of social interactions.
AB - Our perceptual systems integrate multisensory information about objects that are close to our bodies, which allow us to respond quickly and appropriately to potential threats, as well as act upon and manipulate useful tools. Intriguingly, the representation of this area close to our body, known as the multisensory 'peripersonal space' (PPS), can expand or contract during social interactions. However, it is not yet known how different social interactions can alter the representation of PPS. In particular, shared sensory experiences, such as those elicited by bodily illusions such as the enfacement illusion, can induce feelings of ownership over the other's body which has also been shown to increase the remapping of the other's sensory experiences onto our own bodies. The current study investigated whether such shared sensory experiences between two people induced by the enfacement illusion could alter the way PPS was represented, and whether this alteration could be best described as an expansion of one's own PPS towards the other or a remapping of the other's PPS onto one's own. An audio-tactile integration task allowed us to measure the extent of the PPS before and after a shared sensory experience with a confederate. Our results showed a clear increase in audio-tactile integration in the space close to the confederate's body after the shared experience. Importantly, this increase did not extend across the space between participant and confederate, as would be expected if the participant's PPS had expanded. Thus, the pattern of results is more consistent with a partial remapping of the confederate's PPS onto the participant's own PPS. These results have important consequences for our understanding of interpersonal space during different kinds of social interactions.
KW - Acoustic Stimulation
KW - Analysis of Variance
KW - Body Image
KW - Female
KW - Humans
KW - Illusions
KW - Interpersonal Relations
KW - Personal Space
KW - Physical Stimulation
KW - Reaction Time/physiology
KW - Space Perception/physiology
KW - Surveys and Questionnaires
KW - Touch Perception/physiology
KW - Young Adult
U2 - 10.1016/j.neuropsychologia.2014.10.027
DO - 10.1016/j.neuropsychologia.2014.10.027
M3 - Article
C2 - 25447370
VL - 70
SP - 455
EP - 461
JO - Neuropsychologia
JF - Neuropsychologia
SN - 0028-3932
ER -