Sensation and perception Flashcards

Question

what is brightness?

Answer 1

determined by the amplitude of wave- how high or how low the wave actually is - the higher the wave, the brighter the light will be - low waves are dimmer

Answer 2

clear membrane that covers the surface of the eye -protects the eye -focuses most of the light coming into the eye - fixed curvature

Answer 3

hole through which light from the visual image enters the interior of the eye

Answer 4

round muscle ( the coloured part of the eye) in which the pupil is located - can change size of the pupil, letting more or less light into the eye - helps focus the image

Answer 5

another clear structure behind the iris, suspended by muscles - finishes the focusing process begun by the cornea

Answer 6

the change in the thickness of the lens as the eye focuses on objects that are far away or close - loss of this ability due to hardening of the lens as we age results in a condition called presbyopia

Answer 7

A jelly-lie fluid that also nourishes the eye and gives it shape

Answer 8

final stop for light in the eye - a screen for images

Answer 9

carries information to brain

Answer 10

shape of eye causes focal point to fall short of the retina

Answer 11

focal point is behind the retina

Answer 12

area in the retina where the axons of the retinal cells exit the eye to form the optic nerve

Answer 13

our ability to perceive spatial relationships in 3-D - Depth cues of a visual scene are used to establish our sense of depth

Answer 14

cue that relies on the use of both eyes

Answer 15

slightly different view of the world that each eye receives

Answer 16

the partial overlap of objects - objects that obscure or overlap other objects are perceived as closer

Answer 17

cue that relies on only one eye

Answer 18

the partial or complete inability to hear

Answer 19

deafness from birth

Answer 20

associated with a failure in the vibration of the eardrum and/or movement of the ossicles - can often be dealt with using hearing aids which amplify incoming sound waves to make vibration of the eardrum and movement of the ossiclees more likely to occur

Answer 21

sensory receptors change sensory stimulation into neural impulses

Answer 22

sensation of smell; a chemical sense

Answer 23

patch of tissue at top of each nasal cavity - contains 10 million smell receptor cells

Answer 24

key connections between smell, emotion and memory - ability to associate smells with memories peak between 6 and 10 years old

Answer 25

contributes to our ability to maintain balance and body posture - the major sensory organs of the vestibular system are located next to the cochlea in the inner ear - these organs are fluid-filled and contain hair cells which respond to movement of the head and gravitational forces

Answer 26

an explanation of motion sickness in which the information from the eyes conflicts with the information from the vestibular senses ( motion sickness)

Answer 27

"the whole is more than the sum of its part) -field of psychology based on the idea that the whole is different from the sum of its parts - the brain creates a perception that is more than simply the sum of available sensory inputs the brain does this in predictable ways which gestalt psychologists translated into principles by which we organize sensory information - include figure, proximity, similarity, continuity, closure

Answer 28

the idea that we tend to segment our visual world into figure and ground

Answer 29

the idea that things are close to one another tend to be grouped together

Answer 30

the idea that things are alike to be grouped together

Answer 31

the idea that we are more likely to perceive continuous, smooth flowing lines rather than jagged, broken lines

Answer 32

figures with gaps in them are perceived as complete

Sensation and perception Flashcards

(56 cards)