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Circadian neuron feedback controls the Drosophila sleep–activity profile
Feedback from internal clock neurons controls fruit fly sleep and activity patterns
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Abstract
A subset of dorsal clock neurons (DN1s) may significantly influence sleep patterns in Drosophila by releasing glutamate.
- DN1 neurons directly inhibit key pacemaker neurons that promote morning arousal.
- A feedback circuit possibly drives midday siesta and nighttime sleep.
- Real-time activity monitoring suggests DN1 neurons are more active in males than females.
- Increased DN1 activity correlates with higher temperatures, which may lead to increased sleep.
- These findings indicate DN1s play a crucial role in integrating environmental cues with sleep regulation.
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