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Related Concept Videos

Brain Imaging01:14

Brain Imaging

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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
472

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Personality and behavioral changes after brain tumor resection: a lesion mapping study.

Anne-Laure Lemaitre1,2, Guillaume Herbet1,3,4, Hugues Duffau1,3,4

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Diffuse low-grade glioma (DLGG) surgery has minimal impact on personality. However, pre-existing personality traits can predict postoperative behavioral changes, linked to specific brain damage.

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Area of Science:

  • Neuroscience
  • Neurosurgery
  • Psychology

Background:

  • Diffuse low-grade gliomas (DLGG) often spare cognitive function.
  • Personality changes post-DLGG resection remain understudied.
  • Investigating DLGG resection's impact on personality and behavior is crucial.

Purpose of the Study:

  • To assess personality and behavioral changes after DLGG resection.
  • To identify neural correlates of these behavioral changes.
  • To explore the relationship between personality and postoperative behavior.

Main Methods:

  • Administered NOEPI-R and TCI-R personality questionnaires to 98 DLGG patients and 47 controls.
  • Collected hetero-evaluations of executive behavioral changes.
  • Utilized voxel-wise and tract-wise lesion-symptom mapping for neural analysis.

Main Results:

  • No significant differences in most personality dimensions between patients and controls.
  • Behavioral changes (irritability, hypoactivity, etc.) reported in 40-50% of patients.
  • Neuroticism predicted postoperative hypoactivity; specific behaviors linked to cortical/white matter damage.

Conclusions:

  • DLGG and resection have minor effects on overall personality.
  • Personality traits modulate surgically-induced behavioral changes.
  • Specific brain lesions correlate with distinct behavioral abnormalities.