5. Consciousness and Sleep

The _____ theory of sleep says that sleep is a product of evolution.

Carmen stayed up all night studying, getting only about two hours of sleep total. While she was able to finish her exam, she was unable to focus, and much of what she had studied the night before seemed to be forgotten. Carmen's inability to remember and to stay focused during her exam is most likely due to

In studies in which volunteers spend several days without access to information about day or night, their sleep–wake cycles

Predators such as lions sleep _____ their prey, the gazelle.

In the early stages of sleep, _____ waves appear.

Many researchers believe that reports of ghostly visions and alien abductions can be explained by _____ during N1 sleep.

The body is at its lowest level of functioning during _____ sleep.

Which of the following statements about REM sleep is true?

Nearly _____ percent of a baby's sleep is REM, compared to about _____ percent for a normal, healthy adult.

Mateo is often a victim of bad dreams, frequently centered around being left at a store or getting lost at an amusement park. He sometimes wakes up from them, and calls for his parents to help him calm down. Mateo is experiencing

Night terrors are experienced

If the brain-wave pattern of a person playing a professional game of chess was recorded using an electroencephalogram (EEG), what type of brain waves would most likely be detected?

Janice is dreaming about walking her dog. However, in her dream, her dog is flying, the sidewalk is moving, and she has no awareness that this activity is odd. Janice is probably in _____ sleep.

Four-year-old Denise was sound asleep. Suddenly, without warning, she sat straight up and began to scream. Her mother tried to calm her down with no success. Finally, after about 45 seconds of what appeared to be a panic attack, Denise quietly lied back down. When morning came and Denise awoke, she could not remember anything that had happened during the night. It is likely that Denise experienced

Delta waves are predominant in which stage of sleep?