"After 10 hours of being awake" is correct actually.
For the behavioral part of the study, "In their relative evening, late risers are more alert and can outperform early birds in a reaction time test assuming they're allowed follow their natural sleep rhythm, whereas there are no such differences in the morning" would be more accurate.
For the imaging one: "Ten hours after waking up early birds show patterns of activation similar to those of sleep deprived people (1 night skipped). Late owls show patterns associated with optimal concentration". The sleep pressure in EB is also greater as demonstrated by the amount on slow wave sleep in the first part of the night.
> Of course morning people are going to be less effective in their evenings because, well, they are MORNING people.
Not necessarily. In absolute time, it's obvious it will be the case, but why, beforehand, would it be when you adjust the measurements to the sleep cycle? At least it's not obvious for me. Read the detailed methods in my post above. Furthermore, evening people are as performant as early people in their relative morning. The only difference is in the relative evening where late types are better.
I'm not sure it has much impact in terms of eugenics. The paper shows that late people, who tend to be seen as slackers in general, actually perform better (at some tasks) if they are free to follow their natural rhythm (up at 10+am, go to sleep at 2+ am), which is impossible to do for most of them in the current socio-proffesionnal environment.
For the behavioral part of the study, "In their relative evening, late risers are more alert and can outperform early birds in a reaction time test assuming they're allowed follow their natural sleep rhythm, whereas there are no such differences in the morning" would be more accurate.
For the imaging one: "Ten hours after waking up early birds show patterns of activation similar to those of sleep deprived people (1 night skipped). Late owls show patterns associated with optimal concentration". The sleep pressure in EB is also greater as demonstrated by the amount on slow wave sleep in the first part of the night.
> Of course morning people are going to be less effective in their evenings because, well, they are MORNING people.
Not necessarily. In absolute time, it's obvious it will be the case, but why, beforehand, would it be when you adjust the measurements to the sleep cycle? At least it's not obvious for me. Read the detailed methods in my post above. Furthermore, evening people are as performant as early people in their relative morning. The only difference is in the relative evening where late types are better.
I'm not sure it has much impact in terms of eugenics. The paper shows that late people, who tend to be seen as slackers in general, actually perform better (at some tasks) if they are free to follow their natural rhythm (up at 10+am, go to sleep at 2+ am), which is impossible to do for most of them in the current socio-proffesionnal environment.