Tuesday, September 28th, 2010 at
10:31 pm
1.) Brian is sleep deprived, so he enters sleep at REM and skips over the previous sleep stages. Predict what would happen if he does this often.
He would have to catch up on sleep every day.
He would need to get back to his regular sleep schedule.
He wouldn’t get the benefits of REM sleep.
He would sleep very lightly and would be easily awakened.
2.) Which of the following provides the strongest evidence that nonhuman animals dream?
Recordings of brain activity show that nonhuman animals undergo REM sleep.
Recordings of brain activity show that nonhuman animals register alpha brain waves.
Nonhuman animals need consistent sleeping patterns and require a specific amount of sleep.
Observations of nonhuman animals sleeping show movement of the eyes and legs.
3.) Often when we are woken in the first cycle of stage 2 of sleep, we feel even groggier than we did before we fell asleep. Which of the following reasons best explains this experience?
We skipped over stage 1, when the brain transitions from alpha to theta waves and starts to wake up.
We did not reach the deepest sleep stages of stage 3 and stage 4.
We did not get to the REM stage, when our brains and bodies get energy.
We are still stuck in stage 2, when the brain produces bursts of rapid, rhythmic brain wave activity known as sleep spindles.
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