Final answer:
In REM sleep, brain waves resemble those of an awake state, characterized by beta waves with a high frequency of 13-30 Hz and low amplitude.
Step-by-step explanation:
Samaire is in REM sleep. Her brain waves most closely resemble wakefulness. During REM sleep, Samaire's brain wave patterns would most likely be dominated by beta waves, which have the highest frequency (13-30 Hz) and the lowest amplitude, similar to when she is awake.
Unlike NREM sleep, which is subdivided into three stages characterized by varying patterns of brain waves such as the high amplitude and low-frequency delta waves of stage 3 sleep, REM sleep showcases brain activity that is quite active and similar to the state of being awake. It is also worth noting that REM sleep is associated with dreaming and a paralysis of voluntary muscles, despite the high brain activity, which is why it is sometimes called paradoxical sleep.