Chapter 6

Question 1

Sensation

Answer 1

sensory receptors and our nervous system receive and represent stimuli from our environment

Question 2

what is perception

Answer 2

organizing and intercepting of sensory info, enabling us to recognize meaningful objects and events

Question 3

transduction

Answer 3

converting one form of energy into another that our brain can use

Question 4

absolute thresholds

Answer 4

minimum stimulation necessary to detect a particular light, sound, pressure, odor, or taste 50% of the time

Question 5

difference thresholds

Answer 5

the minimum difference a person can detect b/t any 2 stimuli 50% of the time

Question 6

weber’s law

Answer 6

for any avg person to perceive any different 2 stimuli, must differ by a constant min %

Question 7

diminished sensitivity as a consequence of constant stimulation

Answer 7

sensory adaptation

Question 8

how does the eye receive energy

Answer 8

light

Question 9

where light enters the eye

Answer 9

cornea

Question 10

accommodation

Answer 10

the process by which the eye’s lens change shape to focus near or far objects on the retina

Question 11

blind spot

Answer 11

point where optic nerve leaves the eye, creating a blind spot bc there are no receptors

Question 12

parts of the eye

Answer 12

cornea, pupil, iris, lens, retina

Question 13

opponent process theory

Answer 13

opposing retinal processes enable color vision

Question 14

nerve cells in the brain that respond to specific features of the stimulus, such as shape, angle, or movement

Answer 14

feature detectors

Question 15

organized whole

Answer 15

gestalt

Question 16

sound waves

Answer 16

change in air pressure unfolding overtime

Question 17

frequency

Answer 17

rate of a vibration or the # of sound waves per sec, determines pitch

Question 18

decibels

Answer 18

measurement for sound

Question 19

hertz

Answer 19

measurement for frequency

Question 20

outer ear

Answer 20

sound waves collected

Question 21

middle ear

Answer 21

where waves are amplified

Question 22

inner ear

Answer 22

waves are transsduced into coded neural messages

Question 23

vestibular sense

Answer 23

balance

sensing the orientation of your head/bodyin space

Question 24

pain

Answer 24

unpleasant sensory or emotional experience

Question 25

process of smell

Answer 25

airborne molecules inhaled thro nose offactory receptors cells in nasal cavity are stimulated receptor cells stimulation are then converted to eural signals to offactory bulb

Question 26

kinesthesia

Answer 26

system for sensing the position and movement of individual body parts

Question 27

sensory interaction

Answer 27

principle that one sense may influence another as when the smell of food influences its taste

Question 28

Cornea

Answer 28

light enters the eye | bends light to help focus

Question 29

pupil

Answer 29

light passes through | small adjustable opening surrounded by iris

Question 30

iris

Answer 30

colored muscle that controls size of pupil by dilating to light intensity responds to mood/emotion

Question 31

lens

Answer 31

behind pupil focuses incoming light rays into an image on the retina changes curvature and thickness to focus

Question 32

retina

Answer 32

lines the back of the eye, senses light, and creates impulses that travel through the optic nerve to the brain