Exam 3: Sensation and Perception

Describe the gate-control theory of pain.

Gate-control theory has been formulated to explain the sensation of

We must compare an object to other objects viewed at the same time in order to maintain

The distinct quality of sound that distinguishes a trumpet from a trombone at the same pitch and loudness is called

The receptors for hearing are found in the

Most people who are colour-blind see no colours except black, white and shades of gray.

A negative afterimage occurs

is the phenomenon in which we shift our focus from one object to another and, in the process, fail to notice changes in objects to which we are not directly paying attention.

What would be the most painless way to take some terrible-tasting medicine?

Which of the following is not a major type of chronic pain?

Which of the following colours has the shortest wavelength (lowest in nanometres)?

According to the gate-control theory of pain, where are the neural mechanisms that close and thus prevent pain messages from reaching the brain?

The tendency to group objects that are close together in time or space is known as the principle of grouping called

Neural impulses are carried from the retina to the thalamus by the ________ and then relayed to their final destination, the ________.

Each morning when Jackie goes to work at the dry cleaners, she smells the strong odour of cleaning fluid. After she is there for a few minutes, she is no longer aware of it. What accounts for this?

Describe the two major theories that attempt to explain hearing?

The discrimination of a stimulus from background noise and the decision that the stimulus is present combine in the view known as

A professional wine taster must have a good

Describe the nature and function of the fovea.

The condition that occurs when the lens focuses images of distant objects in front of, rather than on, the retina is called