Is spontaneous brain activity in the default mode network sensitive to different resting-state conditions with limited cognitive load?
Our findings of the higher DMN connectivity and regional spontaneous activities in the resting state with the eyes open suggest that the participants might have more non-specific or non-goal-directed visual information gathering and evaluation, and mind wandering or daydreaming during the resting state with the eyes open as compared to that with the eyes closed, thus providing insights into the understanding of unconstrained mental activity within the DMN. Our results also suggest that it should be cautious when choosing the type of a resting condition and designating the order of the resting condition in multiple scanning sessions in experimental design.
Although the time after birth at which the first dose of surfactant is administered to infants 23 to 29 weeks' gestation decreased from 1998 to 2000, in 2000 many infants still received delayed treatment, and delivery room surfactant administration was not routinely practiced at most units. We conclude that there is a gap between evidence from randomized controlled trials that supports prophylactic or early surfactant administration and what is actually done in routine practice at many units.