How long is your arm?: Using multisensory illusions to modify body image from the third person perspective

Catherine Preston; Roger Newport

doi:10.1068/p7103

How long is your arm? Using multisensory illusions to modify body image from the third person perspective

Catherine Preston, Roger Newport

Psychology

Research output: Contribution to journal › Article › peer-review

Abstract

Updating body representations from the 3rd person perspectives (3PP) seems to require viewing the real body, unlike when viewing from a 1st person perspective. Here, 3PP updating was investigated through induction of a physically impossible multisensory illusion in which participants viewed real-time 3PP video of themselves having their arm pulled until it stretched to twice its normal length. The illusion elicited the subjective experience that the participant's own arm had been stretched and caused an overestimation of reaching distance, although actual reaches were unaffected. Multisensory illusions from the 3PP can alter body image when applied to real bodies.

Original language	English
Pages (from-to)	247-249
Number of pages	3
Journal	Perception
Volume	41
Issue number	2
DOIs	https://doi.org/10.1068/p7103
Publication status	Published - 2012

Keywords

Arm
Body Image
Humans
Illusions
Orientation
Pattern Recognition, Visual
Perceptual Distortion
Psychomotor Performance
Size Perception
Touch
User-Computer Interface
Video Recording

Access to Document

10.1068/p7103

Cite this

@article{67888b3081d94329a3183c23e72e3f5c,

title = "How long is your arm?: Using multisensory illusions to modify body image from the third person perspective",

abstract = "Updating body representations from the 3rd person perspectives (3PP) seems to require viewing the real body, unlike when viewing from a 1st person perspective. Here, 3PP updating was investigated through induction of a physically impossible multisensory illusion in which participants viewed real-time 3PP video of themselves having their arm pulled until it stretched to twice its normal length. The illusion elicited the subjective experience that the participant's own arm had been stretched and caused an overestimation of reaching distance, although actual reaches were unaffected. Multisensory illusions from the 3PP can alter body image when applied to real bodies.",

keywords = "Arm, Body Image, Humans, Illusions, Orientation, Pattern Recognition, Visual, Perceptual Distortion, Psychomotor Performance, Size Perception, Touch, User-Computer Interface, Video Recording",

author = "Catherine Preston and Roger Newport",

year = "2012",

doi = "10.1068/p7103",

language = "English",

volume = "41",

pages = "247--249",

journal = "Perception",

issn = "0301-0066",

publisher = "SAGE",

number = "2",

}

TY - JOUR

T1 - How long is your arm?

T2 - Using multisensory illusions to modify body image from the third person perspective

AU - Preston, Catherine

AU - Newport, Roger

PY - 2012

Y1 - 2012

N2 - Updating body representations from the 3rd person perspectives (3PP) seems to require viewing the real body, unlike when viewing from a 1st person perspective. Here, 3PP updating was investigated through induction of a physically impossible multisensory illusion in which participants viewed real-time 3PP video of themselves having their arm pulled until it stretched to twice its normal length. The illusion elicited the subjective experience that the participant's own arm had been stretched and caused an overestimation of reaching distance, although actual reaches were unaffected. Multisensory illusions from the 3PP can alter body image when applied to real bodies.

AB - Updating body representations from the 3rd person perspectives (3PP) seems to require viewing the real body, unlike when viewing from a 1st person perspective. Here, 3PP updating was investigated through induction of a physically impossible multisensory illusion in which participants viewed real-time 3PP video of themselves having their arm pulled until it stretched to twice its normal length. The illusion elicited the subjective experience that the participant's own arm had been stretched and caused an overestimation of reaching distance, although actual reaches were unaffected. Multisensory illusions from the 3PP can alter body image when applied to real bodies.

KW - Arm

KW - Body Image

KW - Humans

KW - Illusions

KW - Orientation

KW - Pattern Recognition, Visual

KW - Perceptual Distortion

KW - Psychomotor Performance

KW - Size Perception

KW - Touch

KW - User-Computer Interface

KW - Video Recording

U2 - 10.1068/p7103

DO - 10.1068/p7103

M3 - Article

C2 - 22670353

SN - 0301-0066

VL - 41

SP - 247

EP - 249

JO - Perception

JF - Perception

IS - 2

ER -