Exam 14: Biological Rhythms, Sleep, and Dreaming

Most modern sleeping pills, such as triazolam, act via receptors for the neurotransmitter

Sleep enuresis is associated with

Summarize the experimental evidence that supports the view that the hypothalamus contains a biological clock.

In the absence of light cues, hamsters with two copies of the tau mutation will show biological rhythms with periods of _______ hours.

A new hamster mutant has a daily rhythm (in the absence of light cues) with a period of 8 hours. If you transplant the fetal SCN from this 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

Cooper sleeps about 7.5 hours a day. On average, he spends 45 minutes in stage 3 sleep. Cooper is most likely

A nocturnal animal is usually asleep during the

A powerful stimulus for resetting the circadian clock is _______.

The "third eye" of birds and reptiles is the

Discuss experimental data concerning the neural mechanism that appears to inhibit muscle tone during REM sleep.

In healthy young adults, nearly half of all sleep time is spent in

The characteristic EEG recording obtained from subjects who are relaxed with their eyes closed is called the _______.

Describe the sleep patterns of infants, adults, and elderly people. Discuss why the patterns may change across the lifespan.

REM sleep is normally preceded by stage _______ sleep.

_______ sleep is characterized by a rapid EEG of low amplitude.

Entrainment of circadian rhythms refers to the process by which

In comparison with adults, the REM sleep of children

Lesions of which hypothalamic site do not interrupt the circannual rhythms related to body weight and reproductive status?

Any cue that an animal uses to synchronize its activity with the environment is called a _______.

Write a coherent and informative paragraph incorporating each of the following terms or concepts: barbiturates; benzodiazepines; GABA; melatonin; receptors