Sensation and Perception

Which of the following is a perception?

• noting a change in temperature
• hearing an increase in volume
• recognizing an object as a car
• viewing a decrease in brightness

Which of the following is true about rods and cones?

• There are more cones in the retina than rods.
• Rods are photoreceptors, while cones are not
• Rods are sensitive to lower levels of light than cones.
• Rods are similar to color film and cones are similar to black-and-white film.

Vibration is crucial to which sense?

• sight
• hearing
• smell
• taste

A sensation may be combined with other sensations and past experiences to yield a

• constancy.
• perception.
• motion parallax.
• ratio.

If we did not have cones in our eyes, we would not see

• colors

• shapes

• sizes

• distant objects

Sensation

• opening in the iris that regulates the amount of light entering the eye

• the tendency to perceive certain objects the same way despite changing conditions

• what occurs when a stimulus activates a receptor

• contains light-sensitive receptor cells

Absolute Threshold

• the weakest amount of a stimulus that a person can detect half the time

• filling in the gaps in what our senses tell us

• what occurs when a stimulus activates a receptor

• organization of sensory information

In the human eye, rods are to _________, as cones are to ________.

• light/ color

• color/ light

• monochromat/ dichromat

• dichromat/ monochromat

• lens/ iris

The classic gate-control theory suggests that pain is experienced when small nerve fibers activate and open a neural gate in the...

• basilar membrane

• spinal cord

• semicircular canal

• olfactory bulbs

• fovea

The coiled, fluid filled tube in which sound waves trigger nerve impulses is called...

• eustachian tube

• auditory canal

• semicircular canal

• cochlea

• vestibular aparatus