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Shared representations in body perception.

Richard Thomas1, Clare Press, Patrick Haggard

  • 1Institute of Cognitive Neuroscience, Department of Psychology, UCL (University College London), 17, Queen Square, London WC1N 3AR, UK. richard.m.thomas@ucl.ac.uk

Acta Psychologica
|October 1, 2005
PubMed
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Humans automatically map sensory events from others onto their own bodies. This interpersonal body representation (IBR) mechanism, using an interpersonal somatotopic map, is crucial for understanding others and may underpin empathy.

Area of Science:

  • Cognitive Neuroscience
  • Social Psychology
  • Neuroscience

Background:

  • Understanding others' experiences is fundamental to human social cognition.
  • Previous research suggests interpersonal systems for action and emotion representation.
  • The neural basis of how we represent others' sensory experiences remains less understood.

Purpose of the Study:

  • To investigate if body representations link self and others for social perception.
  • To explore the role of interpersonal body representation (IBR) in processing sensory information.
  • To provide behavioral evidence for IBR at the sensory processing level.

Main Methods:

  • Utilized behavioral cueing experiments to study interpersonal body representation (IBR).
  • Participants responded to tactile stimuli on their own body.

Related Experiment Videos

  • Visual cues were presented on a body model at corresponding or non-corresponding anatomical locations.

    • Main Results:

    • Faster reaction times were observed when visual cues spatially corresponded to tactile stimulation.
    • This body-specific registration effect was absent with non-body control stimuli.
    • Demonstrated automatic activation of body-specific sensory processing when viewing others.

    Conclusions:

    • Behavioral evidence supports interpersonal body representation at the sensory level.
    • This mechanism involves an interpersonal somatotopic map, linking self and other body representations.
    • Interpersonal body representation is a potential precursor to empathy and theory of mind.