ICPS 2015

Symposium

Neurobehavioral Account of Body Misperception: Basic and Clinical Research Advances

Friday, 13 March 2015, 17:00 - 18:20
Ontvangkamer

Subject Areas: Neuroscience, Clinical Science, Cognitive Psychology

Chair: Cosimo Urgesi
University of Udine and IRCCS Eugenio Medea, Italy, and Bangor University, United Kingdom

Body misrepresentations are thought to play a central role in several psychological disorders and can incorporate cognitive, visual, tactile, affective and motor components. Drawing upon current neurobehavioural frameworks, recent findings are presented investigating different aspects of the human multisensory body representation and its implications for both clinical pathology and treatment.

Neural underpinning of self-body advantage.
Valentina Cazzato
University of Bradford, United Kingdom
Implicit recognition of one’s body leads to a better discrimination of self than other people’s body parts (self-body advantage effect). Here, we show that repetitive transcranial magnetic stimulation over critical nodes of the right temporoparietal cortex selectively interferes with implicitly recognizing size-distorted images of one's own and others' body.

Co-Author: Cosimo Urgesi, University of Udine/ IRCSS Eugenio Medea/ Bangor University


Anorexia nervosa: Feeling fatter than you actually are.
Anouk Keizer
Utrecht University, The Netherlands
Anorexia nervosa patients experience their body as fatter than it actually is. Here, we show that this disturbed experience of body size goes beyond thinking and visually perceiving the body as bigger, but also affect somatosensory processing and perception, multisensory processing and the body in action.

Co-Author: Chris Dijkerman, Utrecht University


Multisensory integration in eating disorders: touch, vision and proprioception.
Ertimiss Eshkevari
Royal Holloway, University of London, United Kingdom
The underlying bases of body image disturbance in eating disorders (ED) have not yet been clearly identified. Research using the rubber hand illusion, a paradigm less confounded by emotional/cognitive factors than measures typically used in EDs, will be presented. The findings suggest alterations in basic processes of body perception.

Co-Author: Janet Treasure, King’s College London


Functional interactions between perceptual and affective body representations in the brain: implications for eating disorder vulnerability.
Catherine Preston
Karolinska Institutet
Currently little is known about the neural mechanisms underlying negative feelings towards the body. Illusory ownership of an obese body revealed links between perceptual and affective body representations in the brain, as well as implicating regions associated with anorexia to non-clinical eating disorder psychopathology and eating disorder vulnerability in women.

Co-Author: Henrik Ehrsson, Karolinska Institutet, Sweden


Chris Dijkerman (Discussant)
Utrecht University


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