sensation & perception (7-9) 🎀

Question 1

sensation

Answer 1

process by which sensory systems (eyes, ears, and other sensory organs) and the nervous system receive stimuli from our environment

Question 2

perception

Answer 2

process of organizing and interpreting incoming sensory information

Question 3

stimulus

Answer 3

anything in the environment that one can respond to

Question 4

absolute threshold

Answer 4

minimum amount of stimulation needed to detect a particular stimulus

Question 5

weber’s law

Answer 5

psychophysics law stating that the larger or stronger a stimulus, the larger the change required for an observer to notice a difference

Question 6

adaptation

Answer 6

ability to adjust to new information and experiences

Question 7

retina

Answer 7

light sensitive surface at the back of the eyeball

Question 8

pupil

Answer 8

adjustable opening in the center of the iris, which controls the amount of light entering the eye.

Question 9

iris

Answer 9

ring of muscle tissue that forms the colored portion of the eye and regulates the size of the pupil

Question 10

cornea

Answer 10

clear, curved bulge on the front of the eye that bends light rays to begin focusing them

Question 11

lens

Answer 11

transparent structure behind the pupil in the eye that changes shape to focus images on the retina

Question 12

fovea

Answer 12

highly specialized area in the center of the retina that is responsible for our sharpest and most detailed vision

Question 13

blind spot

Answer 13

point at which the optic nerve travels through the retina to exit the eye; the lack of rods and cones at this point creates a small blind spot

Question 14

rods

Answer 14

visual receptor cells located in the retina that can detect only black, white, and gray

Question 15

cones

Answer 15

visual receptor cells located in the retina that can detect sharp details and color

Question 16

optic nerve

Answer 16

nerve that carries visual information from the eye to the occipital lobes of the brain

Question 17

sound

Answer 17

own distinct elements of pitch, intensity and tibre

Question 18

eardrum

Answer 18

sends signals to your ossicles

Question 19

cochlea

Answer 19

major organ of hearing; a snail-shaped, bony, fluid-filled structure in the inner ear where sound waves are changed to neural impulses

Question 20

ossicles

Answer 20

three irregular bones in the middle ear of humans (hammer, anvil, stirrup)

Question 21

ossicles function

Answer 21

transfer sound waves from the eardrum to the cochlea

Question 22

5 tastes

Answer 22

sweet, sour, bitter, salty, umami (savory)

Question 23

4 touch sensations

Answer 23

pressure, hot, cold, and pain