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Related Experiment Video

Updated: Mar 2, 2026

Measuring Delay Discounting in Humans Using an Adjusting Amount Task
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Brain Structure Linking Delay Discounting and Academic Performance.

Song Wang1, Feng Kong2, Ming Zhou1

  • 1Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, 610041, China.

Human Brain Mapping
|May 13, 2017
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Summary
This summary is machine-generated.

Delay discounting, the ability to wait for rewards, significantly impacts academic performance. This study found the left dorsolateral prefrontal cortex (DLPFC) is a common neural basis linking self-discipline, reward processing, and student achievement.

Keywords:
academic performanceadolescentsdelay discountingdorsolateral prefrontal cortexvoxel-based morphometry

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Educational Psychology

Background:

  • Delay discounting, a measure of self-discipline, influences academic success.
  • The neural underpinnings connecting delay discounting and academic performance are not well understood.

Purpose of the Study:

  • To investigate the neuroanatomical basis of the relationship between delay discounting and academic performance in adolescents.
  • To identify specific brain structures associated with both constructs.

Main Methods:

  • Utilized voxel-based morphometry (VBM) on structural magnetic resonance imaging (S-MRI) data.
  • Analyzed data from 214 adolescents.

Main Results:

  • Confirmed a significant behavioral correlation between delay discounting and academic performance.
  • Identified the regional gray matter volume (rGMV) of the left dorsolateral prefrontal cortex (DLPFC) as being associated with both delay discounting and academic performance.
  • Found that DLPFC gray matter differences explained over one-third of the effect of delay discounting on academic performance.

Conclusions:

  • Provides the first evidence for a shared neural basis linking delay discounting and academic performance.
  • Highlights the role of the left DLPFC in self-discipline, reward valuation, and academic achievement.