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Related Experiment Videos

Is postnatal neocortical maturation hierarchical?

R W Guillery1

  • 1Department of Anatomy, University of Wisconsin, 1300 University Avenue, Madison, WI 53706, USA. rguiller@wisc.edu

Trends in Neurosciences
|August 30, 2005
PubMed
Summary
This summary is machine-generated.

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The cerebral cortex develops postnatally. This study evaluates whether primary sensory areas mature before higher processing areas, impacting adolescent behavior, and presents methods for further research.

Area of Science:

  • Neuroscience
  • Developmental Neuroscience
  • Cognitive Neuroscience

Background:

  • Postnatal development of the cerebral cortex is crucial for understanding cognitive functions.
  • The sequence of maturation across different cortical areas is debated.
  • Inter-area cortical dependencies are key to brain development.

Purpose of the Study:

  • To investigate the developmental timeline of different cerebral cortex areas.
  • To determine if primary sensory areas mature before higher-order processing areas.
  • To explore the functional implications of asynchronous cortical maturation on adolescent behavior.

Main Methods:

  • Evaluation of existing evidence on cortical maturation sequences.
  • Analysis of studies supporting concurrent versus hierarchical maturation.

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  • Presentation of methodologies for obtaining reliable developmental data.

    • Main Results:

    • Conflicting evidence exists regarding concurrent versus hierarchical maturation of cortical areas.
    • The functional roles of later-maturing areas may explain adolescent behaviors.
    • Further research is needed to establish definitive maturation sequences.

    Conclusions:

    • Understanding inter-cortical dependencies is vital for comprehending postnatal brain development.
    • The maturation sequence of cortical areas has implications for cognitive and behavioral development, particularly during adolescence.
    • Reliable methods are needed to resolve the debate on cortical maturation timing.