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Bodily self-consciousness arises from integrating multisensory bodily signals. Disruptions in this integration, particularly involving parietal mechanisms, can lead to disorders of self-consciousness after brain injury.

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and first-person perspectivebodily self-consciousnessdisownershipdoublesexteroceptive and interoceptive processingmultisensory perceptionposterior parietal cortexself-identificationself-locationtemporoparietal junction

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Area of Science:

  • Clinical Neuroscience
  • Human Neuroscience
  • Cognitive Neuroscience

Background:

  • Self-consciousness relies on integrating internal and external bodily signals.
  • Bodily self-consciousness (BSC) involves processing exteroceptive and interoceptive information.
  • Parietal lobe mechanisms are crucial for multisensory integration in BSC.

Purpose of the Study:

  • To explore how multisensory integration generates and modulates BSC in humans.
  • To review behavioral and neuroimaging studies on BSC.
  • To examine neurological disorders of BSC following brain damage.

Main Methods:

  • Review of behavioral studies.
  • Analysis of neuroimaging studies (e.g., fMRI, EEG).
  • Neurological case study review.

Main Results:

  • Multisensory integration, especially involving parietal regions, is fundamental to BSC.
  • Disorders of BSC manifest as attentional, delusional, or illusory deficits.
  • Breakdown in the body-self connection underlies BSC disorders.

Conclusions:

  • BSC is a complex construct dependent on integrated bodily signals.
  • Parietal cortex plays a key role in mediating BSC.
  • Understanding BSC mechanisms is vital for diagnosing and treating neurological disorders affecting self-perception.