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Human behaviour and development under high-altitude conditions.

Javier Virués-Ortega1, Eduardo Garrido, Casimiro Javierre

  • 1Department of Personality, Assessment and Treatment, Universidad de Granada, Spain. virues@ugr.es

Developmental Science
|June 13, 2006
PubMed
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Altitude exposure can impair cognitive and motor functions in adults, with effects potentially persisting. Research on children is limited, but suggests developmental impacts from hypoxia.

Area of Science:

  • Neuroscience
  • Altitude Medicine
  • Developmental Psychology

Background:

  • Adults experience motor, perceptual, memory, and behavioral deficits at altitude, even at 2500m.
  • Extreme altitudes (>5000m) can cause lasting impairments.
  • Limited research exists on altitude effects during development.

Purpose of the Study:

  • To investigate neurobehavioral functioning at altitude.
  • To understand the impact of hypoxia on the developing brain and behavior.
  • To compare adult and child responses to altitude.

Main Methods:

  • Review of existing literature on altitude and neurobehavioral function.
  • Analysis of studies on acute mountain sickness in children.
  • Examination of cognitive and behavioral data from native high-altitude populations.

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Main Results:

  • Evidence suggests motor and cognitive impairments in adults at moderate altitudes.
  • Hypoxia may lead to subtle cognitive and behavioral deficits in children.
  • Native populations show signs of incomplete adaptation to chronic hypoxia.

Conclusions:

  • Altitude exposure impacts neurobehavioral functioning across the lifespan.
  • Further research is needed to fully understand developmental effects of hypoxia.
  • Studying altitude effects can inform our understanding of clinical hypoxia impacts.