When under the influence of a stimulant, you are likely to be in a state of

Which of the following statements are true about sleep patterns?

I. Stages 3 & 4 gets longer as the night goes on.

II. Each sleep cycle typically last between 90-120 minutes.

III. REM cycles get longer as the night goes on.

James is a graduate student working in a sleep lab. He is analyzing EEGs, focusing on the height of the waves. Based on this information, what specific aspect of the EEGs is James studying?

Which of the following situations best demonstrates waking consciousness?

On Yan's walk to campus one morning, she was thinking about what a nice day it was, how many people were already on campus, and how she had to stop by the bookstore on her way to class. Yan was experiencing

Antwon cannot seem to focus in class today. Though he is not asleep, his mind appears to be drifting off, leading to thoughts of his girlfriend, his job, and upcoming events of the day. Antwon appears to be in which of the following states of consciousness?

Marion takes 20 minutes daily to sit by herself and meditate. A fully meditative state is a form of

Driving and talking on a cell phone at the same time is an example of a state of

Which of the following statements about the circadian rhythm is true?