Sundown Syndrome-Like Symptoms in Fruit Flies May Be Due to High Dopamine Levels Changes in Flies Parallel Human Disorder

Researchers have discovered a mechanism involving the neurotransmitter dopamine that switches fruit fly behavior from being active during the day (diurnal) to nocturnal. This change parallels a human disorder in which increased agitation occurs in the evening hours near sunset and may also be due to higher than normal dopamine levels in the brain.

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