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Related Experiment Video

Updated: Jan 20, 2026

A Method for Investigating Age-related Differences in the Functional Connectivity of Cognitive Control Networks Associated with Dimensional Change Card Sort Performance
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Individual differences in parietal and frontal cortex structure predict dissociable capacities for perception and

Joshua O Eayrs1, Nilli Lavie1

  • 1Institute of Cognitive Neuroscience, University College London, UK.

Neuroimage
|September 3, 2019
PubMed
Summary

Brain structure differences predict perceptual and cognitive control capacities. The right Inferior Parietal Lobule (IPL) relates to perceptual capacity, while the left Middle Frontal Gyrus (MFG) relates to cognitive control capacity.

Keywords:
Cognitive controlIndividual differencesPerceptual capacityVoxel based morphometry

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Area of Science:

  • Cognitive Neuroscience
  • Neuroimaging
  • Human Perception and Attention

Background:

  • Capacity limitations in perception can cause inattentional blindness when overloaded.
  • Conversely, working memory's cognitive control capacity influences attention, affecting distractor processing.
  • Understanding the neural basis of these distinct capacities is crucial for cognitive science.

Purpose of the Study:

  • To identify distinct brain-structural correlates for perceptual capacity and cognitive control capacity.
  • To investigate if these capacities are dissociable and represent stable, trait-like attributes.

Main Methods:

  • Utilized Voxel-Based Morphometry (VBM) and Principal Components Analysis (PCA).
  • Perceptual capacity assessed via tasks including multiple object tracking and change blindness.
  • Cognitive control capacity assessed via working memory span tasks across different domains.

Main Results:

  • Right Inferior Parietal Lobule (IPL) gray matter volume predicted perceptual capacity.
  • Left Middle Frontal Gyrus (MFG) gray matter volume predicted cognitive control capacity.
  • These neural correlates remained distinct even when controlling for the other capacity.

Conclusions:

  • Perceptual and cognitive control capacities are dissociable neural attributes.
  • Regional gray matter differences in specific brain regions predict these trait-like capacities.
  • Findings suggest distinct structural brain signatures for perceptual versus cognitive control.