Sensation & 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

Being able to see a candle flame 30 miles away on a clear night is the

• absolute threshold for human vision
• difference threshold for human vision.
• perceived threshold for human vision
• ratio threshold for human vision

If an object reflects purple light and absorbs other colors, what color will that object appear to be in daylight to someone with normal color vision?

• any color except purple, depending on the object’s density
• purple
• black or gray
• white or gray, depending on the object’s reflectivity

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

Receptors that are responsible for transferring light into neural impulses.  

• Rods & Cones of Retina
• Optic Stem
• Cornea
• Iris

The organization of sensory information into meaningful experiences.  

• Senstation
• Perception
• Gestalt Awareness
• Sensory organization

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

• light/ color

• color/ light

• monochromat/ dichromat

• dichromat/ monochromat