In the circuitry shown below where green is excitatory and red is inhibitory, would you expect the following to be in a a slow-wave or REM sleep state?
Ventrolateral Periaqueductal Gray $\rightarrow$Subcoeruleus$\rightarrow$intermediary neurons$\rightarrow$skeletal motor neurons

Question

Quizplus · Accepted Answer

The ventrolateral periaqueductal gray (vlPAG) is a brain region that is involved in the regulation of sleep and wakefulness. The vlPAG sends excitatory projections to the subcoeruleus (SubC), which in turn sends inhibitory projections to intermediary neurons. These intermediary neurons then send excitatory projections to skeletal motor neurons. During slow-wave sleep, the vlPAG is active and the SubC is inhibited. This allows the intermediary neurons to send excitatory signals to the skeletal motor neurons, which results in muscle relaxation and the characteristic slow-wave EEG pattern.

In the Circuitry Shown Below Where Green Is Excitatory and Red