Which hallucinogen has caused controversy because of legalization attempts due to its purported medical benefits?

The point at which a person can detect a stimulus 50 percent of the time it is presented is called the ______

a) absolute threshold b) range threshold c) difference threshold d) noticeable threshold

The typical dream is likely to include themes or characteristics of:

A. sexual encounters, black and white, and take place outside B. recurrent themes of being threatened and our intentions C. several characters, visual sensations, and motion-like walking D. one character, pain sensations, and joy