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Related Experiment Videos

One brain, two selves.

A A T S Reinders1, E R S Nijenhuis, A M J Paans

  • 1Department of Biological Psychiatry, Groningen University Hospital, The Netherlands. a.a.t.s.reinders@med.rug.nl

Neuroimage
|December 20, 2003
PubMed
Summary
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Researchers studied Dissociative Identity Disorder (DID) to understand self-awareness. Brain imaging revealed distinct blood flow patterns in the medial prefrontal cortex and posterior associative cortices, linked to different senses of self.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Psychology

Background:

  • A sense of self is a complex human brain function.
  • Understanding the neural basis of self-awareness and consciousness is crucial.

Purpose of the Study:

  • To investigate the anatomical localization of self-awareness.
  • To explore brain mechanisms of consciousness in patients with Dissociative Identity Disorder (DID).

Main Methods:

  • Functional neuroimaging was used to study patients with DID.
  • Emotional mental states of core consciousness were analyzed.

Main Results:

  • Specific changes in localized brain activity were observed in DID patients.
  • Distinct regional cerebral blood flow patterns correlated with different senses of self.

Related Experiment Videos

  • Patients demonstrated unique access to autobiographical trauma-related memories for each self-state.

    • Conclusions:

    • The medial prefrontal cortex (MPFC) plays an integral role in conscious experience.
    • Posterior associative cortices are also vital for self-awareness and consciousness.
    • Findings support distinct neural underpinnings for multiple self-states in DID.