Final Quiz Flashcards
If the SCN is separated from the rest of the brain by a series of knife cuts, and one looks at the activity of the cells in vitro, their rhythmicity…
persists.
In mammals, what is the effect of lesions of visual cortex on the rhythms of the SCN?
They are not altered.
A nocturnal animal is usually asleep during the…
night.
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.
The process by which an animal slowly shifts its circadian rhythm to synchronize with the time of sunrise each day is called…
entrainment.
In the absence of light cues, hamsters with two copies of the tau mutation will show biological rhythms with periods of _______ hours.
about 20
The type of rhythmicity characterized by the regular, predictable onset of a particular behavior every six hours is called…
ultradian.
The type of rhythmicity characterized by the regular, predictable onset of a particular behavior once a day is called…
circadian.
The type of rhythmicity characterized by the regular, predictable onset of a particular behavior once a month is called…
infradian.
During REM, thermoregulation…
is impaired.
In humans, enhanced serum levels of growth hormone are evident during…
slow-wave sleep (SWS).
Slow, large-amplitude waves are seen in the EEG records of people who are in…
stage 3 sleep.
The usual duration of the typical human repeating sleep cycle is…
90-110 minutes.
Nightmares are associated with…
REM sleep.
Neck and body muscles are completely flaccid during…
REM sleep.
_______% of sleep in the first two weeks of life is _______ sleep.
50; REM
The pattern of sleep in elderly humans is characterized by increases in…
awakenings.
Experimental evidence suggests the biological role of dreaming during REM sleep may be related to the…
consolidation of learning.
Sleep that immediately follows a period of learning has the apparent effect of…
improving long-term memory.
The sleep of dolphins and birds is similar in that both display…
unilateral sleep.
The James-Lange theory of emotion argues that emotions are the…
perception of bodily changes evoked by any stimulus.
The Cannon-Bard theory of emotions would predict that people with severe spinal cord injuries would…
experience the same emotions that others do
The facial nerve innervates…
the superficial muscles of facial expression.
Patients with damage to the amygdala…
- do not feel or express a normal fear response,
- have difficulty recognizing fearful expressions in other people, and
- exhibit almost no startle response.
Decorticate rage refers to…
sudden, intense, poorly directed rage provoked by ordinary stimuli in animals whose cortex has been removed.
People whose facial muscles have become paralyzed tend to experience…
emotions less intensely than they did before the paralysis.
A human patient with a bilateral loss of the amygdala would show a marked impairment in the ability to recognize another person’s…
fear.
Which transmitter has been especially implicated in the control of aggression?
Serotonin
