Responses of suprachiasmatic nucleus neurons to light and dark adaptation: Relative contributions of melanopsin and rod–cone Inputs



This paper investigates the responses of neurons in the suprachiasmatic nucleus (SCN) to light and dark adaptation, focusing on the relative contributions of different photoreceptive systems in shaping the photic signal influencing the circadian clock.


  • Cognitive function and memory: The paper discusses how different photoreceptive systems in the SCN, a part of the brain involved in circadian rhythms and cognitive function, respond to light and dark adaptation.
  • Hormone regulation: The paper's investigation into the SCN, which plays a key role in regulating hormones related to circadian rhythms, makes it relevant to this category.
  • Lighting Design Considerations: The paper's focus on how light influences neuronal responses in the SCN could have implications for lighting design, particularly in contexts where circadian rhythms are important.
  • Well-being: The paper's investigation into how light influences the SCN, and thus circadian rhythms, is relevant to well-being, as disruptions to these rhythms can negatively impact health and well-being.


E Drouyer, C Rieux, RA Hut
Publication Date

Publication Year:


Number of Citations: