This colored muscle adjusts the size of the pupil.
What is the iris?
This is the other name for the ear drum.
What is the tympanic membrane?
This term describes our brain trying to determine which is the subject of a scene, and which is everything else.
What is the figure-ground relationship?
This is the illusion that the phi phenomenon (with its blinking lights) will give to us.
What is the perception of motion?
If your bare foot were to step on an ice cube and a very warm rag, you might you perceive this sensation.
What is heat?
These cells transmit sensory messages from the rods and cones to the ganglion cells.
What are bipolar cells?
What is frequency theory?
Our brains will automatically complete a partial pattern, picture, or figure. What is this grouping rule called?
What is closure?
The constant whistling of the air conditioner bothered you at first. After a while, you could not even hear it. What is this phenomenon called?
What is sensory adaptation?
Sensitive to dim light, these receptors aid your peripheral vision.
What are rods?
This is how many times louder 4 decibels is compared to 3 decibels.
What is ten times louder?
In a scene, our brain will tend to recognize the pairs (or groups of three) of like objects. What is this grouping rule called?
What is Similarity?
This is how many eyes you need to have to perceive depth using the cue called "interposition".
What is one eye? (monocular)
This is an example of trying to induce "gate-closing" activity in the nervous system to block pain.
What is rubbing an injury, performing acupuncture, or providing electrical stimulation?
This place on the retina has the highest density of cones.
What is the fovea (Point of Central Focus)
These are the ossicles - three middle ear bones.
What are the hammer, anvil, and stirrup?
This is the english translation of Gestalt.
What is "whole" or "form"?
When an object gets closer to us, it appears larger on our retina. This is the word that describes how our brain knows that the object is not actually growing larger.
What is size constancy?
What is perceptual adaptation?
This is the opponent color to blue, based on opponent-process theory.
This type of hearing loss is caused by a failure of the ear's mechanical apparatus to convey sound waves to the cochlea.
What is conduction hearing loss?
Our brain will see objects that are closer together as single units or sets. What is this grouping rule called?
What is proximity?
When looking at something floating in a lake, one person may see a log, while another person may see a sea creature? This is the term for the "mental predisposition" that influences what is seen.
What is "perceptual set"?
When we are moving, objects closer to us move more quickly through our visual scene. What is this depth-perception cue called?
What is motion parallax?