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What are raw data activated by sensory organs?
Noticing that the room is getting darker is an example of
a just-noticeable difference
Color blind people have difficulty
distinguishing red from green
The tendency to perceive something a certain way because of previous experiences or expectations is called
The lowest stimulus required for detection is the
and the smallest noticeable difference between 2 difference is the
absolute threshold; just noticeable difference
A hearing test is to check
The process of unchanging info from the senses being "ignored" is called
Our eyes don't completely adapt to constant visual stimulus because
eye movements calle microsaccades cause the stimulus image to vibrate slightly on the retina
The shortest wave lengths we can see are experienced as which color?
Which part of the eye is a muscle that regulates the size of the pupil?
The amount of light entering the eye is controlled by
Each retina has about
It is difficult to distinguish between colors at night because
we are seeing primarily with the rods
Sound waves are simply
the vibration of the molecules of the air surrounding us.
What are the hammer, anvil, and stirrup?
tiny bones located in the middle ear.
A person can have between
taste buds in his or her mouth.
Our sense of taste works when food molecules are
dissolved in saliva in our mouths
What is the approximate life expectancy of individual taste receptor cells?
The cilia in the nose act like taste buds because
they contain receptor sites that are stimulated by different molecules
What is the definition of the kinesthetic sense?
It has to do with the location of body parts in relation to the ground and each other.
What is the best description of the vestibular senses?
They have to do with movemnet and body position
The gate-control theroy of pain suggests that
the pain signals must pass through a kind of "gate" located in the spinal cord
Pain can influence the release of which neurotransmitter?
Closing your eyes and touching your nose illustrates
Perception is the
process by which people take all the sensation they experience at any given time.
Psychology chapter 2 review for midterm