Biological Psychology Quiz 12

Lesions of the _______ produce persistent sleep in animals. - cerebellum. - optic chiasm. - basal forebrain. - reticular formation.

reticular formation.

In general, the sleep of small mammals is characterized by - short sleep cycles - long sleep cycles - reduced overall amounts of sleep - a virtual absence of REM sleep

short sleep cycles

In humans enhanced serum levels of growth hormones are evident during - the daytime periods of wakefulness - an entire night's sleep - low wave sleep SWS - sleep following periods of stress

slow wave sleep SWS

Sleep enuresis is associated with - stage 1 SWS - stage 2 SWS - stage 3 and 4 SWS - REM sleep

stage 3 and 4 SWS

Slow, large-amplitude waves are seen in the EEG records of people who are in - stage 1 SWS - stage 2 SWS - stage 3 or 4 SWS - REM sleep

stage 3 or 4 SWS

Premature infants born after only 30 weeks of gestation may spend as much as __% of their sleep time in REM sleep - 100 - 80 - 20 - 5

80

In comparison with adults the REM sleep of children - takes up a greater porportion of the overall amount of sleep - occupies a smaller proportion of the overall amount of sleep - is a much more predictable portion of the overall amount of sleep - is far less intense in its basic characteristics

takes up a greater proportion of the overall amount of sleep

The attacks of sleep that occur in narcolepsy are characterized by: A) the immediate onset of deep SWS B) the immediate onset of REM C) a usual pattern of SWS and REM sleep D) the lack of REM

the immediate onset of REM

Entrainment of circadian rhythms refers to the process by which - the periodic oscillations of an animal's activity are dampened - the length a typical day is extended - the rhythms of an animal's activities are synchronized and shifted - a free-running process is established

the rhythms of an animal's activities are synchronized and shifted

The usual duration of the typical human repeating sleep cycle is - 3 to 4 hours - 10 to 20 minutes - 90 to 110 minutes - 1 to 2 minutes

90 to 110 minutes

The type of rhythmicity characterized by the regular, predictable onset of a particular behavior every six hours is called: A) infradian B) ultradian C) circadian D) circannual

A) infradian

It has been proposed that SWS is promoted through the actions of GABA on the ______, which _______ the reticular formation. A) tuberomammilary nucleus; activates B) tuberomammilary nucleus; actively inhibits C) locus coeruleus; activates D) locus coerulues; actively inhibits

B) tuberomammilary nucleus; actively inhibits

Some researchers have characterized SWS dreams as: A) very intense and vivid B) lacking in intellectual content C) composed of realistic visual images and lifelike sounds D) resembling vague thought

D) resembling vague thought

Which of the following animals does not appear to experience REM sleep? - Platypus - Dolphin - Rabbit - Cat

Dolphin

In an experiment with hamsters, if the light timer is set so that the lights are switched on and then off 6 hours earlier each day, the animals will show which of the following responses? - Period adjustment - Phase shift - Zeitgeber - Arrhythmia

Phase shift

Fifty percent of sleep in the first two weeks of life is __ sleep - fast - REM - SWS - unregulated

REM

Neck and body muscles are completely flaccid during - stage 1 SWS - stage 3 or 4 SWS - REM sleep - Both a and b

REM sleep

Nightly episodes of dreaming are most often associated with - stage 1 SWS. - stage 2 SWS. - stage 3 or 4 SWS. - REM sleep.

REM sleep.

When deprived of cues about time, people tend to show activity cycles that are - exactly 24 hours long - a little less than 24 hours long - a little more than 24 hours long - completely unpredictable

a little more than 24 hours long

The cortical EEG pattern of the encephale isole animal is characterized by - sustained sleep patterns - intense arousal patterns - alternating periods of arousal of sleep - intense seizure activity

alt periods of arousal of sleep

Experimental evidence suggests that the biological role of dreaming during REM sleep may be related to the - consolidation of perceptual learning - effort to shed bad memories - processing of intense sexual excitement - problem-solving activities of the brain

consolidation of perceptual learning

A nocturnal animal is usually asleep during the

daytime

Stage 4 of human SWS is characterized by - the periodic appearance of spindles. - low-voltage, high-frequency scalp EEG activity. - delta waves half of the time. - slow waves with a frequency of 10 Hz.

delta waves half of the time.

The process by which an animal slowly shifts its circadian rhythm to synchronize with the time of sunrise each day is called - period adjustment - zeitgeber - entrainment - shifting

entrainment

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 - arrhythmic - dysrhythmic - circumspect - free-running

free-running

Sleep that immediately follows a period of learning has the apparent effect of - blocking long-term retention - improving long-term retention - undoing the learning - impairing retrieval of the learned material

improving long-term retention

During REM, thermoregulation - is impaired - is maintained in a normal manner - depends on body temperature - is enhanced

is impaired

Norepinephrine innervation to the brain comes primarily from the - tuberomammilary nucleus - locus coeruleus - reticular formation - basal forebrain

locus coeruleus

The cerveau isole preparation involves a cut through the - spinal cord. - medulla. - midbrain. - thalamus.

midbrain.

The incidence of insomnia is greatest in __ in general, and in both men and women in ___. - women; the later stages of life - men; the later stages of life - women; middle age - men; middle age

women; the later stages of life