Development of the prefrontal lobe in infants and children: a three-dimensional magnetic resonance volumetric study

Hideaki Kanemura1, Masao Aihara, Shigeki Aoki

  • 1Department of Pediatrics, School of Medicine, University of Yamanashi, 1110 Shimokato, Tamaho-cho, Yamanashi 409-3898, Japan.

Brain & Development
|April 12, 2003
PubMed

Insights

Brain imaging reveals that prefrontal lobe volume grows slowly in children until age 8, then rapidly between ages 8 and 14. This study characterizes normal prefrontal lobe development using magnetic resonance imaging.

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Radiology

Background:

  • Normal prefrontal lobe development is not well understood.
  • The prefrontal cortex plays a crucial role in cognitive functions.

Purpose of the Study:

  • To characterize developmental changes in prefrontal lobe volumes in infants and children.
  • To establish normative data for prefrontal lobe growth.

Main Methods:

  • Three-dimensional magnetic resonance imaging (MRI)-based brain volumetry was employed.
  • Prefrontal and frontal lobe volumes were measured in 30 subjects (5 months to 18 years) and 3 adults.
  • The prefrontal-to-frontal volume ratio was calculated.

Main Results:

  • Prefrontal lobe volume showed slow growth until 8 years of age.
  • A rapid increase in prefrontal lobe volume occurred between 8 and 14 years.
  • The prefrontal-to-frontal volume ratio followed a sigmoid growth curve, indicating a growth spurt in late childhood.

Conclusions:

  • A significant prefrontal growth spurt occurs in late childhood.
  • Understanding prefrontal lobe development is vital for cognitive development and dysfunction research.
  • This study provides essential normative data for prefrontal lobe development.