Eye Anatomy
Which receptors fire in bright light
Cones
detection of physical energy by sensory receptors
sensation
In a crowded room, you notice that all people wearing red shirts appear to be grouped together. This is an example of
Similarity
Depends on vibrations, called sound waves
Hearing
the differences between the images in each eye
What is retinal disparity?
What is the name for the clear flexible disk that focuses light onto the retina?
Lens
Minimum level of stimulation needed to detect a stimulus 50% of the time
Absolute Threshold
The tendency to perceive lines or patterns as following the smoothest path rather than having abrupt changes is known as
Continuity
Loudness of sound is determined by this
Amplitude (height of sound)
the ability to recognize distances and three dimensions
What is depth perception?
What is the opening in the iris that regulates the amount of light entering the eye?
Pupil
analysis that begins with sensory receptors and works up to the brain
bottom up processing
Looking at a painting that seems to be incomplete, but your brain automatically fills in the missing parts. Which Gestalt principle is responsible for this?
Closure
This is determined by sound wave frequency
Pitch (rate of vibration)
when parallel lines appear to meet in the distance
What is linear perspective?
What is the nerve that carries impulses from the retina to the brain?
Optic Nerve
When you hear your name from across the room at a crowded party?
Cocktail Party Effect
Grouping objects that are close together
Proximity
this occurs when anything hinders physical motion through the outer or middle ear
conduction deafness
When your eyes turn inward when looking at your finger close to your face
What is convergence?
What is the innermost coating of the back of the eye, containing the light-sensitive receptor cells?
Retina
Failure to see something visible because attention is directed elsewhere
Inattentional Blindness
The main point of focus in a visual display is known as the
Figure
this changes sound waves into electrical signals
What is a cochlear implant?
this depends on the movement of both eyes
What are binocular depth cues