The functional body: does body representation reflect functional properties?
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There is a growing interest in the distortions of body representation in healthy population and most studies have focused their attention on specific parts of the body, such as the hands. Only three studies have considered the representation of the body as a whole. Findings, acquired by different means of assessment methods, are partially contrasting, leading to different interpretations. The present study aims to investigate which aspects of body representation can be preserved regardless of the method adopted and whether current and previous findings can be explained by a unique theoretical model. In Experiments 1a and 1b, we adopted a modified version of the Body Image Task to investigate body representations in real scale and the relationship of its parts. Participants judged the location of body landmarks by pointing on their own silhouette imagined on a wall in front of them. In Experiment 2, we investigated (i) whether the pattern of distortions observed in the first experiment are maintained across different methods by asking participants to estimate the veracity and proportionality of the length of their own body parts; and (ii) whether similar distortions can be generalized to stereotypical representations. Overall, we observed a consistent pattern of distortions, whereby upper body limbs are underestimated and lower parts of the body are overestimated across all experiments and conditions. These findings are then interpreted as the result of a functional relationship between body parts and daily actions, which underlie a close modulation of body schema and body image. This interpretation offers a reconciliation of seemingly contradictory findings in the literature and supports to the co-construction model (Pitron et al. in Conscious Cognit 65:352–358, 2018).
KeywordsBody representation Body image Body schema Body action Bodily awareness Posture
We like to thank Dr. Guido Org for providing the ‘avatar’ stimuli and Dr. Rebekah Jamieson-Craig for proof-reading our manuscript.
- Arnhoff FN, Mehl MC (1963) Body image deterioration in paraplegia. J Nervous Mental Disorders 137:88–92Google Scholar
- Brozzoli C, Makin TR, Cardinali L, Holmes NP, Farnè A (2012) Peripersonal space: a multisensory interface for body-object interactions. In: Murray MM, Wallace MT (eds) The neural bases of multisensory processes. CRC Press/Taylor & Francis, Boca Raton, p 2012Google Scholar
- Bruce V, Young A (1998) In the eye of the beholder: the science of face perception. Oxford University Press, OxfordGoogle Scholar
- Buxbaum LJ, Coslett HB (2001) Specialised structural descriptions for human body parts: evidence from autotopagnosia. Cognitive Neuropsychol 18:289–306Google Scholar
- Cocchini G, Galligan T, Mora L, Kuhn G (2018) The magic hand: effect of expertise on representation of own hand. Q J Exp Psychol 71(11):2314–2324Google Scholar
- de Vignemont F (2018) Mind the body. Oxford University Press, OxfordGoogle Scholar
- Fuentes CT, Longo MR, Haggard P (2013a) Body image distortions in healthy adults. Acta Physiol (Oxf) 144:344–351Google Scholar
- Gallagher S (1986) Body image and body schema: a conceptual clarification. J Mind Behav 7:541–554Google Scholar
- Gallagher S (2005) How the body shapes the mind. Oxford University Press, New YorkGoogle Scholar
- Head H, Holmes G (1911) Sensory disturbances from cerebral lesions. Brain 34:102–254Google Scholar
- Longo MR (2016) Types of body representation. In: Coello Y, Fischer MH (eds) Foundations of embodied cognition: Perceptual and emotional embodiment, vol 1. Routledge, London, pp 117–134Google Scholar
- Mora L, Cowie D, Banissy MJ, Cocchini G (2018) My true face: unmasking one’s own face representation. Acta Physiol (Oxf) 191:63–68Google Scholar
- O’Shaughnessy B (1980) The will: a dual aspect theory. Cambridge University Press, Cambridge, pp 273–282Google Scholar
- Reed CL, McGoldrick JE, Shackelford R, Fidopiastis C (2004) Are human bodies represented differently from other animate and inanimate objects? Vis Cognit 11:523–550Google Scholar
- Schwoebel J, Coslett HB (2005) Evidence for multiple, distinct representations of the human body. J Cognit Neurosci 17:543–553Google Scholar
- Skrzypek S, Wehmeier PM, Remschmidt H (2001) Body image assessment using body size estimation in recent studies on anorexia nervosa. A brief review. Euro Child Adolesc Psychiatry 10:215–221Google Scholar