Which of the Following Statements Regarding the Brain During Sleep

question 77

Multiple Choice

Which of the following statements regarding the brain during sleep is most accurate?

• A)Sleep is an altered state of consciousness.
• B)The brain shuts down during sleep.
• C)Complex thinking cannot occur during sleep.
• D)Conscious experience of the outside world is mostly intact during sleep.

---

Definitions:

Iris

A muscular membrane whose dilation regulates the amount of light that enters the eye.

Color Blind

The inability to perceive differences between some or all colors that others can distinguish.

Trichromatic Theory

The theory that color vision is made possible by three types of cones, some of which respond to red light, some to green, and some to blue.