Chen is attending a lecture where his professor requests all students to give their undivided attention to an important concept he intends to explain. The professor is actually interested in the students’_____ attention.

Salim likes to have coffee. He has begun to consume several cups of coffee even when he has nothing much to keep himself busy. He says that coffee keeps his spirits up by alleviating boredom. This indicates that Salim:

B.F. Skinner believed behavior is modified by:

Can negative reinforcers be punishers?

In a certain experiment, a research subject is supposed to hear the sound of a bell. The sound of the bell that the research subject can hear in 50 percent the trials is his _______. 

The suprachiasmatic nucleus influences the release of melatonin by its effect on the:

Those whose corpus callosum is surgically severed are said to be patients with

When Rodney first began drinking alcohol, he became lightheaded after drinking a single beer. Now he must drink three beers before feeling lightheaded. This is called:

Which of the following statements is true of the functions of sleep?

Racial and ethnic stereotypes can sometimes bias our perceptions of others’ behaviors. This best illustrates the impact of: