SOLUTIONS RATED A+
✔✔Penile tumescence, vaginal engorgement in REM is
Infrequent or frequent? - ✔✔frequent
✔✔Penile tumescence, vaginal engorgement in NREM is
Infrequent or frequent? - ✔✔Infrequent
✔✔temperature in REM is
Homeothermic or poikilothermic? - ✔✔poikilothermic
✔✔temperature in NREM is
Homeothermic or poikilothermic? - ✔✔Homeothermic
✔✔Process C or Process S?
a longer time awake, the drive for steep (sleep need) builds up emonentiaily, and
dissipates over the course of steep - ✔✔Process S
✔✔Process C or Process S?
SWS/N3 decreasing over successive NREM sleep cycles reflects this process, with
higher N3 after sleep deprivation - ✔✔Process S
✔✔Process C or Process S?
pacemaker is the suprachiasmatic nucleus (SCN) of the hypothalamus - ✔✔Process C
✔✔Process C or Process S?
directs the 24-hour
cycle or endogenous
(internal) biological rhythm - ✔✔Process C
✔✔Process C or Process S?
Body temperature is a marker - ✔✔Process C
,✔✔Process C or Process S?
cortisol and melatonin are markers - ✔✔Process C
✔✔Light is a "zeitgeber" (time-giver)
True or false? - ✔✔True
✔✔Light is a "photoreceptor" (time-giver)
True or false? - ✔✔False
✔✔Light input is carried along the retinohypothalamic tract (RHT) to the SCN.
True or false? - ✔✔True
✔✔Light input is carried along the retinohypothalamic tract (RHT) to the homeostatic
drive.
True or false? - ✔✔False
✔✔Coordinated by the SCN, light inhibits melatonin secretion during the dark cycle
(hence, the hormone of darkness).
True or false? - ✔✔True
✔✔Coordinated by the SCN, light inhibits body temperature during the dark cycle
(hence, the hormone of darkness).
True or false? - ✔✔False
✔✔Damage to the SCN eliminates the circadian rhythms of many behaviors, including
sleep.
True or false? - ✔✔True
✔✔Damage to the SCN eliminates the homeostatic process of many behaviors,
including sleep.
True or false? - ✔✔False
✔✔Light, via the photoreceptor melanopsin, may exert its antidepressant effect through
a modulation of the homeostatic process of sleep.
, True or false? - ✔✔True
✔✔One physiological "marker" of the human circadian "rhythm is core body
temperature; the timing of the "nadir" or minimum temperature is in the early hours of
the morning around 4 AM (high sleep propensity) with a peak around 6 PM (low sleep
propensity).
True or false? - ✔✔True
✔✔The proportion of N3 sleep is greatest in the first sleep cycle and dissipates over the
course of the sleep period.
True or false? - ✔✔True
✔✔The proportion of REM sleep is greatest in the first sleep cycle and dissipates over
the course of the sleep period.
True or false? - ✔✔False
✔✔The propensity for REM sleep is highest in the early morning.
True or false? - ✔✔True
✔✔There are "forbidden zones" for sleep which are times in the circadian phase when it
is difficult to initiate sleep, such as in the 2-3 hours before the habitual sleep onset.
True or false? - ✔✔True
✔✔There are "forbidden zones" for sleep which are times in Process S when it is
difficult to initiate sleep, such as in the 2-3 hours before the habitual sleep onset.
True or false? - ✔✔False
✔✔Tricyclics - ✔✔Tmax (Hrs) 2.5 -10
T1/2 (Hrs) 16-80
Sleep Latency v
Sleep Efficiency ^
%SWS ^
% REM v
✔✔SSRIs/SNRIs - ✔✔Tmax (Hrs) 2-7
T1/2 (Hrs) 5-50
Sleep Latency ^