Chapter 3 Sensation And Perception Flashcards
What is the job of a receptor?
To detect a type of physical energy
Imagine that a teaspoon of sugar is dissolved in 2 gallons of water. Rita can detect this level of sweetness at least half the time. This level is called the
Absolute threshold
In what area of the brain is the visual cortex located?
In the back
What is the function of the thalamus and visual processing?
It relays information to the cortex
Imagine that a baseball player puts on special glasses that shift his visual field up to 10°. When he wears these glasses everything is higher than it actually is. After some practice, the player can hit with the glasses off. What will happen when the player first trimester hit with the glasses off?
He will think that the ball is lower than it is
Imagine that a small dog is walking toward you. As the dog gets closer, the image it casts on your retina
Gets larger
What illustrates that perception is an active process?
Top down processing
Where is the proximal stimulus found?
On the retina
How is visual information processed by the brain?
It is processed by the occipital lobe, which projects to the thalamus, which projects to the succession of areas in the cortex
What is true about the proximal stimulus in the visual perception?
It is upside down, black, distorted, and obscured by blood vessels
What is an example of pure top down processing?
Hallucinating
When your eyes are shut they cannot
Transform a distal visual stimulus into a proximal stimulus
The primary reason my psychologist study illusions just because
They help in understanding how perception normally works
