Format

Send to

Choose Destination
Psychiatry Res. 2015 Dec 15;230(2):732-4. doi: 10.1016/j.psychres.2015.10.025. Epub 2015 Oct 24.

Out of body, out of space: Impaired reference frame processing in eating disorders.

Author information

1
Applied Technology for Neuro-Psychology Lab, IRCCS Istituto Auxologico Italiano, Via Magnasco 2, 20149 Milan, Italy. Electronic address: s.serino@auxologico.it.
2
Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy; Department of Surgery and Interdisciplinary Medicine, University of Milano-Bicocca, Milan, Italy.
3
Centre for Integrated Research-Area of Diagnostic Imaging, University Campus Bio-Medico, Rome, Italy.
4
Division of Psychiatry, Faculty of Brain Sciences, University College of London, London, UK.
5
Applied Technology for Neuro-Psychology Lab, IRCCS Istituto Auxologico Italiano, Via Magnasco 2, 20149 Milan, Italy.
6
Department of Surgery and Interdisciplinary Medicine, University of Milano-Bicocca, Milan, Italy.
7
Applied Technology for Neuro-Psychology Lab, IRCCS Istituto Auxologico Italiano, Via Magnasco 2, 20149 Milan, Italy; Department of Psychology, Catholic University of the Sacred Heart, Milan, Italy.

Abstract

A distorted body representation is a core symptom in eating disorders (EDs), though its mechanism is unclear. Allocentric lock theory, emphasising the role of reference frame processing in body image, suggests that ED patients may be (b)locked to an (allocentric) representation of their own body stored in long-term memory (e.g., my body is fat) that is not updated (modified) by the (real-time egocentric) perception-driven experience of the physical body. Employing a well-validated virtual reality-based procedure, relative to healthy controls, ED patients showed deficits in the ability to refer to and update a long-term stored (allocentric) representation with (egocentric) perceptual-driven inputs.

KEYWORDS:

Body image; Eating disorders; Spatial reference frame

PMID:
26541204
DOI:
10.1016/j.psychres.2015.10.025
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center