News Finding: "You will understand why you would need light to see," he says, "but why do you need light to make you happy?"
Paper Finding: under the T7 cycle, neurons may be abnormally (and chronically) activated by the appearance of light every 3.5 hr, which would lead to alterations in PER2 rhythmic expression.
News Context: But Hattar is pretty confident that this circuit explains the link between light exposure and mood. "You will understand why you would need light to see," he says, "but why do you need light to make you happy?" In the meantime, he has some advice for people who are feeling low: "Try to take your lunch outside.
Paper Context: **p<0.01; by Tukey's test (n = 5-6 mice). under the T7 cycle, neurons may be abnormally (and chronically) activated by the appearance of light every 3.5 hr, which would lead to alterations in PER2 rhythmic expression. Indeed, when WT mice were housed under the T7 cycle, PER2 rhythmicity was abolished in the PHb, maintaining high PER2 levels throughout ( Figure 4D ).