Unit 4 Review

What is the purpose of the Iris?

• To focus light on the retina

• To process color

• To allow light into the eye

• To enable night vision

• To detect specific shapes

Neurons that fire in response to specific edges, lines, angles, and movements are called what?

• rods

• cones

• ganglion cells

• feature detectors

• bipolar cells

Signal detection theory is most closely associated with which perception process?

• vision

• sensory adaptation

• ablsolute thresholds

• smell

• context effects

Which of the following represents perceptual constancy?

• We recognize the tast of McDonald's food each time we eat it

• In photos of people, the people amost always are perceived as figure and everything else is ground

• We know that the color of a printed page has not changed as it moves from sunlight into shadow

• From the time they are very young, most people can recognize the smell of a dentist's office

• The cold water in a lake doesn't seem so cold after you have been swimming in it for a few minutes

Our tendency to see faces in clouds and other ambiguous stimuli is partly based on what perception principle?

• selective attention

• ESP

• Perceptual set

• shape constancy

• Bottom-up processing

The process by which rods and cones change electromagnetic energy into neural messages is called what?

• adaptation

• accommodation

• parallel processing

• transduction

• perceptual set

Which of the following is most likely to influence our memory of a painful event?

• the overall length of the event

• the intensity of pain at the end of the event

• the reason for the pain

• the amount of rest you've had in the 24 hours preceding the event

• the specific part of the body that experiences the pain

Frequency theory relates to which element of the hearing process?

• rate at which the basilar membrane vibates

• number of fibers in the auditory nerve

• point at which the basilar membrane exhibits the most vibration

• decibel level of a sound

• number of hair cells in each cochlea

Which of the following best represents an absolute threshold?

• a guitar player knows that his D string has just gone out of tune

• a photographer can tell that the natural light available for a photograph has just faded slightly

• your friend amazes you by correctly identifying unlabeled glasses of Coke and Pepsi

• A cook can just barely taste the salt she has added to her soup

• your mom throws out the milk because she says the taste is "off"

Which of the following describes a perception process that the Gestalt psychologists would have been interested in?

• depth perception and how it allows us to survive in the world

• why we see an object near us as closer rather than larger

• how an organized whole is formed out of its component pieces

• what the smallest units of perception are

• the similarities between shape constancy and size constancy