Exam 6: Sensation and Perception

The lens

When light contains every wavelength,it is said to be "pure."

Sarah says that certain colors make her experience different smells.For example,she says that the color purple smells like a rose to her.Sarah is displaying the symptoms of

The process by which rods and cones become more sensitive to light in response to lowered levels of illumination is called

The hair cells of the cochlea are embedded in the rubbery

The retina is to vision as _______________ is to hearing.

How do we typically locate the direction a sound is coming from? Why is it so difficult to tell whether a sound's source is directly behind you or directly overhead?

The gate-control theory helps to explain our perception of

Rods and cones are connected to

The colored part of the eye which contains muscles to contract or expand the pupil is the

The intensity of light corresponds to the amplitude of the light wave.

Sense receptors convert the energy of the stimulus to ______________ that travel along nerves to the brain.

The intensity of a wave's pressure corresponds to a sound's pitch.

When kittens were exposed to either vertical or horizontal stripes,and nothing else,for several months it was found that

Sound waves are collected by the outer ear and channeled down the auditory canal.Describe the major structures of the ear and describe the role each plays in the process of hearing.

Ordinarily we need to know not only what something is,but also where it is.Because vision doesn't give us this information directly,we must infer it.Explain how we use various visual cues to estimate distance or depth,giving examples of two cues that require the use of both eyes.The textbook notes that there are many distance cues that do not depend on having two eyes.Choose and describe five of the seven cues that depend upon one eye.

In a signal-detection task,the participant says that he detects a signal and a signal was present.This is called a

Briefly describe the presumed evolutionary significance of the following tastes: bitter and sweet.

The height of a sound wave represents its

_______________ codes rely on the fact that sensory receptors and neurons fire,or are inhibited from firing,only in the presence of specific sorts of stimuli.