The brain waves typical of NREM sleep appear to be the result of ...

[jho37]

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 preoptic area of the hypothalamus.
 c. synchronization of cortical neurons by the thalamus.
 d. desynchronization of cortical neurons by the thalamus.

Question 2

Unless some type of pathology is present, the first segment of sleep is
 
  a. always REM.
 b. always NREM.
 c. a mixture of REM and NREM.
 d. a special state that cannot be characterized as either REM or NREM.

[AmberC1996]

Answer to Question 1

c

Answer to Question 2

b

[jho37]

Thanks for the timely response, appreciate it

[cici]

Great answer, keep it coming