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Related Experiment Videos

Self-recognition and the right prefrontal cortex.

Keenan1, Wheeler, Gallup

  • 1Laboratory for Magnetic Brain Stimulation Harvard Medical School, Department of Neurology, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA 02215, USA.

Trends in Cognitive Sciences
|August 30, 2000
PubMed
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Self-face recognition involves a specialized brain network, primarily in the prefrontal cortex, distinct from general face recognition. This network shows a right-hemisphere bias for processing self-related information.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Self-Recognition Research

Background:

  • Face recognition is well-studied, but the neural basis of self-face recognition remains unclear.
  • It is unknown if self-face recognition uses a dedicated 'self-network' or a general 'face-network'.
  • The link between self-recognition and other self-processes like self-evaluation and autobiographical memory is not well-defined.

Purpose of the Study:

  • To investigate the neural underpinnings of self-face recognition.
  • To determine if a distinct neural network supports self-face recognition.
  • To explore the relationship between self-recognition and other self-related cognitive functions.

Main Methods:

  • Functional magnetic resonance imaging (fMRI)

Related Experiment Videos

  • Event-related potentials (ERPs)
  • Repetitive transcranial magnetic stimulation (rTMS)
  • Split-brain studies
  • Focal lesion studies
  • Positron emission tomography (PET)

    • Main Results:

    • The prefrontal cortex, potentially with right hemisphere lateralization, appears crucial for self-recognition.
    • Self-evaluation and autobiographical memory preferentially engage right fronto-temporal networks.
    • Evidence suggests a processing bias for 'self' within the right prefrontal cortex, rather than a specific 'self-recognition center.

    Conclusions:

    • Self-face recognition likely involves a preferential engagement of the right prefrontal cortex.
    • Self-related processes may be biased towards right-hemisphere neural networks.
    • While no single 'self' center exists, the right prefrontal cortex plays a significant role in self-processing.