Psychology Chapter 3
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Psychology Chapter 3
study vocab and ques
a stimulation/outside force that is detected by the body
interpretation of a sensation
what are picked by senses?
what are the five senses?
taste, smell, touch, hear, sight
organ that senses something
what are sensory nerves?
what is it called when there are limits of the senses?
absolute least or most of a stimulus that can be detected
the smallest amount of difference detectable of two things
senses changes to new conditions
what are the components of the eye?
thin membrane of the eye
what does the lens do?
-focus the light
-bends the light
-bends or stretches to properly refract the light
muscle structure that expands or contracts
lining in the back of the eye
the retina is covered by _________ that burns in the image
what are the two photoreceptors in the eye?
rods and cones
hold light and dark receptors
flips image right side up and sends it to the brain
where does the retina send the image?
to the optic nerve
where does the optic nerve connect?
why do old folks need glasses?
-optic nerve damage
what is a problem that is genetic and has to do with the cones
frequency of vibration
the intensity of the waves
what is an example for threshold for pitch
the dog whistle
what 3 things does the ear contain?
Ear drum, 3 small bones, Cochlea,
what is the sensory organ of hearing?
the ear (middle and inner)
like a drum skin, and it's a thin membrane that vibrates waves when you strike it
what are the 3 small bones?
anvil, hammer, and stirrup
what do the 3 small bones do?
they vibrate, sending vibration deeper into the ear
what is shaped like a snail shell and is filled with liquid that amplifies sounds
the cochlea is covered w/ them, and they grab the vibrations & convert into an electrical/chemical message
-and attatched to the auditory nerve
problem with ear structure
problem with cochlea (nerve dammage/nueron dammage)
what sensory organ is for the smell sense
what sense capture chemicals that have been emitted
what does the smell nuerons do?
-grab on to the chemicals
-send them to the olfactory nerve
what carries the smell sensation captured by the nuerons to the brain?
what is heavily co-dependent on smell and the sensory organ is the tongue?
what are the nuerons called that the tongue is covered with?
what are the four tastes?
sweet, sour, bitter, and salty
what is the sensory organ for skin?
what are the three dedicated purposes for skin?
pressure, pain, and temperature
what's located in logical places and have very sharp sensors attatched directly to hair?
what is concentrated in certain spots and is a warning system?
suggests that the brain can hold only so many messages? too many messages..some aren't read?
Gates Theory of Pain
what sensors are everywhere and can adjust?
the sense of balance
sense of movement/body control
a personal interpretation of sensation
what does perception do?
-assign meaning to sensation
what are the rules/guidelines of perception?
mind will close of gaps in sensations to make sense of them
tendency to look at foreground before background
-tendency to look in the center
-is vital to motion detection
tendency to see like items that are close as being the same
we group the items
to prefer smooth and continuous patterns
like items grouped together; we
they have a common destiny
what are the constancies?