Hollister, NC Profile: Facts, Map & Data. Hollister, North Carolina - Basic Facts. The Hollister Census Designated Place had a population of 663 as of July 1, 2016. Hollister ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in North Carolina. See peer rankings below.
Stage N2 sleep is scored when either one or more K complexes is noted (and unassociated with an arousal) or one or more trains of sleep spindles appear. Stage N2. Note K complexes unassociated with arousal and trains of sleep spindles.
These are spindle shaped traces on an EEC during sleep stage 2 that are short bursts of 15Hz waves that increase and decrease in amplitude. K complexes are often followed by sleep spindles.