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Human functional neuroimaging of brain changes associated with practice.

A M Clare Kelly1, Hugh Garavan

  • 1Department of Psychology and Trinity College Institute of Neuroscience, Trinity College, Dublin, Ireland.

Cerebral Cortex (New York, N.Y. : 1991)
|December 24, 2004
PubMed
Summary

Brain plasticity allows lifelong learning and adaptation. Neuroimaging studies reveal complex, varied changes in brain activation with practice, influenced by task type and cognitive processes.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Neuroimaging

Background:

  • The human brain exhibits lifelong plasticity, with experience influencing neural and cortical changes.
  • Neuroimaging techniques like PET and fMRI enable the study of experience-driven brain modifications.
  • Research investigates how task practice alters functional brain anatomy.

Purpose of the Study:

  • To review and synthesize findings on practice effects on brain activation.
  • To identify factors influencing observed patterns of brain changes during learning.
  • To propose a framework for understanding practice-related neural alterations.

Main Methods:

  • Extensive literature review of practice-effects studies.
  • Analysis of neuroimaging data examining task practice.

Related Experiment Videos

  • Distinguishing between reorganization and redistribution of brain activation patterns.

    • Main Results:

    • Practice effects on brain activation are inconsistent, showing increases, decreases, and reorganization.
    • Key influencing factors include task domain, cognitive processes, and imaging/practice time windows.
    • A novel distinction is made between reorganization and redistribution patterns.

    Conclusions:

    • Understanding practice-related brain changes requires attention to behavioral, cognitive, and neural levels.
    • Functional and effective connectivity analyses are crucial for future research.
    • Lifelong brain plasticity is a fundamental aspect of human adaptation.