The brain waves typical of NREM sleep appear to be the result of
A) activity progressing from the pons to the lateral geniculate nucleus to the occipital cortex.
B) activity in the POA of the hypothalamus.
C) synchronization of cortical neurons by the thalamus.
D) desynchronization of cortical neurons by the thalamus.

Question

Quizplus · Accepted Answer

The synchronization of cortical neurons by the thalamus is responsible for the brain waves typical of NREM sleep. Activity in the POA of the hypothalamus, choice B, is involved in regulating the sleep-wake cycle, but not specifically the brain waves of NREM sleep. Choice A is a description of the visual pathway, not related to NREM sleep. Choice D is incorrect, as desynchronization of cortical neurons is seen in REM sleep, not NREM sleep.

The Brain Waves Typical of NREM Sleep Appear to Be