Sleep Flashcards
What is the function of sleep? What evidence supports that sleep is essential for our survival?
Memory consolidation, restoration, and clearing out brain waste
Rats die within a month of no sleep
Fatal familial insomnia -> lower life expectancy
How can we monitor sleep and identify the physiological and neural characteristics of each stage of a sleep cycle?
EEG: measures brain waves
EMG: measures muscle tone
EOG: measures eye movement
During which stage of sleep does alpha, beta, theta, or delta wave EEG occur? How do these different waves of EEG differ?
What are the main characteristics of REM sleep?
High frequency and low amplitude EEG; limb twitch; erection/vaginal secretion; atonia
What are the events that occur during slow-wave versus REM sleep?
REM: rapid eye movement; atonia; high frequency/low amplitude EEG; limb twitch; erection/vaginal secretion
Slow-Wave: little-to-no eye movement; moderate muscle tone; low frequency/high amplitude EEG; sleep talking or walking; no genital activity
What is the consequence of repeated/chronic sleep deprivation? Why are slow-wave and REM sleep both important for our health and function?
What are the neural mechanisms that control REM sleep and the state of sleep and wakefulness?
Explain different types of sleep disorders such as insomnia, sleep apnea, sleep paralysis, and narcolepsy.
Insomnia:
Sleep apnea:
Sleep paralysis:
Narcolepsy:
What causes circadian rhythm sleep-wake disorders?
