biopsych chapter chapter 11 quiz

How long does an ultradian cycle typically last?

90-120 minutes

Sleep patterns are most likely to change at puberty due to

a drop in the production of melatonin.

The free-running daily cycle of human beings is _________ hours long.

between 24 and 25

Research evidence suggests that

both REM and NREM appear to play important roles in memory formation.

It is most likely that sleep

does not serve the same purposes in all species.

Major depressive disorder with seasonal pattern is usually treated by

exposing the patient to bright lights.

Release of melatonin is suppressed by

exposure of the animal to light.

Cortisol levels are normally

highest in the morning.

Sleep deprivation is associated with

reduced release of growth hormone and impaired healing of injuries.

Which of the following is an example of a circadian rhythm?

sleep-waking cycles

If SCN tissue is transplanted from a short-period hamster into a normal hamster,

the normal hamster will show 20-hour cycles.

Cells forming the retinohypothalamic pathway contain

the photopigment melanopsin.

Melatonin is secreted by the

the pineal gland.

The body's internal "master clock" is

the suprachiasmatic nucleus.

Jet lag is

worse when one travels in an eastward direction.