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Area of Science:

  • Neuroscience
  • Psychology

Background:

  • Procrastination is a widespread behavior with significant negative consequences.
  • The underlying neural mechanisms of procrastination remain largely unknown.

Purpose of the Study:

  • To investigate the neuroanatomical correlates of procrastination.
  • To identify brain regions associated with procrastination behavior.

Main Methods:

  • Voxel-based morphometry (VBM) was used to analyze gray matter (GM) volume in two independent samples.
  • Whole-brain analysis was performed on the first sample, followed by region-of-interest (ROI) analysis for verification.

Main Results:

  • Procrastination positively correlated with GM volume in the parahippocampal gyrus (PHG) and orbital frontal cortex (OFC).
  • Procrastination negatively correlated with GM volume in the inferior frontal gyrus (IFG) and middle frontal gyrus (MFG) in the first sample.
  • GM volume in the OFC and MFG predicted procrastination in the verification sample.

Conclusions:

  • The middle frontal gyrus (MFG) and orbital frontal cortex (OFC) are implicated in procrastination.
  • These findings suggest the MFG and OFC play crucial roles in self-control and emotion regulation, influencing procrastination.