Chapter 14 questions Flashcards
During REM, thermoregulation….
is impaired
The process by which an animal slowly shifts its circadian rhythm to synchronize with the time of sunrise each day is called…
entrainment
Dolphins do not exhibit____ sleep, most likely because motor inhibition during this stage would not allow the dolphins to surface for air.
REM
In healthy young adults, nearly half of all sleep time is spent in…
Stage 2 SWS
A diurnal animal is awake during the…
daytime
When a hamster or a person continues to display an activity cycle without any external cues about the time of day, the cycle is said to be….
free-running
Sleep spindles are seen in the EEG records of people who are in…
stage 2 sleep
sleep enuresis is associated with
Stage 3 SWS
Some researchers have characterized SWS dreams as…
resembling vague thought.
Entrainment of circadian rhythms refers to the process by which…
the rhythms of an animal’s activities are synchronized and shifted.
____% of sleep in the first two weeks of life is ____sleep.
50; REM
The cerveau isole preparation involves a cut through the….
midbrain
In the absence of light cues, hamsters with two copies of the tau mutation will show biological rhythms with periods of _______ hours.
About 20
A new hamster mutant, zip, has a daily rhythm (in the absence of light cues) with a period of 8 hours. If you transplanted the fetal SCN from a zip animal into the brain of an adult hamster with the tau mutation (and its own SCN lesioned), you would expect the period of this adult’s rhythm to be
8 hours
Autopsy results from people who have died of fatal familial insomnia show evidence of degeneration in the
thalamus
