Neuroimaging the effects of light on non-visual brain functions



This paper discusses the effects of light on non-visual brain functions, specifically how light exposure can alter circadian rhythms and impact sleep, alertness, cognitive abilities, and mood.


  • Sleep and insomnia: The paper discusses how light exposure is a major environmental factor regulating sleep and wakefulness, and how lack of light can negatively impact sleep quality.
  • Alertness and performance: The paper explores how light exposure can cause acute alterations in alertness and cognitive performance.
  • Cognitive function and memory: The paper examines how light exposure can affect cognitive abilities, including memory processes and attention.
  • Mood regulation: The paper discusses how light exposure can impact mood, and how lack of light can have a negative effect on mood.
  • Seasonal affective disorder: The paper mentions that repeated daily exposure to light is recommended as a therapy for seasonal affective disorder.
  • Phototherapy: The paper discusses the use of light exposure as a form of therapy for various conditions, including sleep disorders and mood disorders.
  • Lighting Design Considerations: The paper discusses how the wavelength, duration, and intensity of light exposure can impact non-visual brain functions.


G Vandewalle, DJ Dijk
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