psychology

Question 1

sensation definition

Answer 1

the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment

Question 2

perception definition

Answer 2

the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events.

Question 3

what is the cornea and it’s function

Answer 3

is the clear curved covering at the front of the eye

the cornea protects the eye and helps to focus light
onto the retina at the back of the eye

Question 4

what is the iris and its function

Answer 4

the iris is the coloured tissue at the front of the eye that contains the pupil in the center

it function is controls the amount of light that enters the eye by opening and closing the pupil

Question 5

what is the pupil and it’s function

Answer 5

The round opening in the center of the iris

the Pupil controls the amount of light entering the eye by dilating in the dark and constricting in bright light to limit the amount of light entering.

Question 6

what is the lens and it’s function

Answer 6

a nearly transparent biconvex structure suspended behind the iris of the eye

focuses light rays onto the retina

Question 7

what is the retina and it’s function

Answer 7

is a multi-layered neural structure at the
back of the eye

to receive light that the lens has focused, convert the light into neural signals, and send these signals on to the brain for visual recognition.

Question 8

convergence

Answer 8

the rotation of the two eyes inward toward a light source so that the image falls on corresponding points on the fovea

Question 9

retinal disparity

Answer 9

The brain combines the two images and

uses the differences to judge distance

Question 10

accommodation

Answer 10

Brain detects then interprets tension in
ciliary muscles controlling the shape of
the lens when focusing

Question 11

motion parallax

Answer 11

The brain detects depth by the speed at
which an object moves. The closer the
object, the faster it moves; the further
away, the slower the movement

Question 12

5 factors to perceptual set

Answer 12

emotional state, motivation levels, culture, past experiences, context

Question 13

what is the ciliary muscle and it’s function

Answer 13

A circular muscle that relaxes or tightens the zonules to enable the lens to change shape for focusing.

Question 14

monocular cues / pictorial depth cues

Answer 14

accommodation, motion parallax

relative size, linear perspective, interposition, height in the visual field, texture gradient

Question 15

binocular cues

Answer 15

convergence and retinal disparity

Question 16

shape constancy

Answer 16

to perceive the shape of an
object as remaining constant despite
changes in the shape of the retinal
image

Question 17

size constancy

Answer 17

to perceive the size of an object as
remaining constant despite changes in the size of the
retinal image

Question 18

gestalt principles

Answer 18

similarity, proximity, closure, figure ground