1. Neuroscience
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Brain Development: The impact of light during the night

  1. Sophia TC Leung
  2. R Anne McKinney
  3. Alanna J Watt  Is a corresponding author
  1. McGill University, Canada
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Cite this article as: eLife 2019;8:e52364 doi: 10.7554/eLife.52364
1 figure

Figures

Light-at-night and the developing brain.

When developing chicks are exposed to repeated cycles of 12 hours of light and 12 hours of darkness (top panel), they release a hormone called ALLO from the pineal gland during the dark phase. However, when the chicks were exposed to one hour of light during the night for a week (bottom panel), the release of ALLO was disrupted, and this resulted in the death of Purkinje cells in the part of the cerebellum that is next to the pineal gland (live cells are shown in green; dead cells are shown in gray).

Image credit: Sophia Leung

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