BackDominique is making a rice dish for 5 people that requires 4 teaspoons of salt. If she were to add just one more teaspoon of salt to the rice after tasting it, half of the time she would be able to notice a difference. If Dominique decides to triple her recipe to feed 15 people, which would call for a total of 12 teaspoons of salt, how many teaspoons of salt would need to be added for a person to be able to taste the difference half of the time?
When Consuela first put on her scarf, she could feel it quite easily. After a while, however, Consuela forgot that she was wearing a scarf at all; the sensation was gone. Which of the following processes is occurring?
Fenhua got into his car and turned on the radio. He turned the volume up to a comfortable level. After a few minutes of driving, however, the once-comfortable level seemed to be too low, so Fenhua turned up the volume. What has happened?
The term _____ refers to stimuli that are below the level of conscious awareness.
The _____ is the lowest level of stimulation that a person can consciously detect 50 percent of the time that the stimulation is present.
The tendency of the brain to stop attending to constant, unchanging information is known as
Many people believe that some stimuli act upon the unconscious mind and influence behavior, a process called
_____ is the way the brain deals with unchanging information from the environment.
If a researcher finds that one drop of perfume diffused through a three-room apartment is the minimum amount of stimuli needed to notice the scent, then this would be a test of one's
"Packets" of light waves are referred to as
Color is largely determined by the
Light bends as it passes through substances of different densities, a process known as
As your lens hardens through aging, you may have trouble with
The image projected on the retina is
Full dark adaptation, such as going from constant light to sudden darkness when turning out one's bedroom lights, takes about _____ minutes.