Sensation and Perception(C3)

Question 1

What is Sensation?

Answer 1

Sensation is stimulation of sensory receptors and transmission of sensory information to the central nervous system. It is meaningless until it reaches the CNS.

Question 2

Sensation is the stimulation of _____________

Answer 2

Sensory Receptors

Question 3

Sensation is stimulation of sensory receptors and transmission of ___________________ to the central nervous system

Answer 3

Sensory Information

Question 4

What is Perception?

Answer 4

Perception is the process by which sensations are organized and interpreted.

Question 5

The process by which sensations are organized and interpreted is called?

Answer 5

Perception

Question 6

What is the term for the weakest amount of a stimulus that can be distinguished from no stimulus at all?

Answer 6

Absolute threshold – it is detected at least 50% of the time.

Question 7

What amount of the time does a sensation need to be perceived to reach Absolute Threshold?

Answer 7

50% of the time

Question 8

What is difference threshold?

Answer 8

The minimum difference in magnitude of two stimuli required to tell them apart

Question 9

What does JND stand for?

Answer 9

Just noticeable difference

Question 10

What is JND?

Answer 10

The minimum difference of sensation a person can detect

Question 11

What is the term for the standard of difference in sensation perception?

Answer 11

Webster’s Constant

Question 12

What are the 3 ways of assessing sensation and perception?

Answer 12

1. Absolute Threshold 2. Difference Threshold 3. Signal Detection Theory

Question 13

What is Signal Detection Theory?

Answer 13

SDT is the view that the perception of sensory stimuli involves the interaction of physical, biological, and psychological factors.

Question 14

What is subliminal stimulation?

Answer 14

Sensory stimulation below a persons absolute threshold for conscious perception.

Question 15

Factors such as psychological, learning, and motivation can affect what?

Answer 15

Stimulus perception

Question 16

Specific neurons respond to specific features of a _________________

Answer 16

stimulus

Question 17

Top down processing perceives:

Answer 17

The whole, followed by perception of the parts

Question 18

The processing of the whole of a stimulus before the parts is referred to as:

Answer 18

Top down processing

Question 19

Bottom up processing is:

Answer 19

Perception of the parts leading to perception of the whole

Question 20

Perceiving the parts before perceiving the whole is called

Answer 20

Bottom up processing

Question 21

Gestalt Psychology is:

Answer 21

Perceiving stimuli based on the entirety of their features

Question 22

Sensitization is a ___________ adaptation

Answer 22

Positive- perceiving a stimuli more

Question 23

When you enter a dark theater and become more sensitive to light this is a example of:

Answer 23

Sensitization

Question 24

Desensitization is a _____________ adaptation

Answer 24

When you become less sensitive to a stimuli

Question 25

When you notice the sound of traffic less inside your house over time, this is an example of _____________________

Answer 25

Desensitization

Question 26

Light is electro________ energy

Answer 26

magnetic

Question 27

Within visible light, color is determined by:

Answer 27

Wavelength

Question 28

Light enters the eye at the _________

Answer 28

Pupil

Question 29

The Iris muscle is the __________ part of the eye

Answer 29

Colored

Question 30

The Cornea lies over the ________ of the pupil and bends light

Answer 30

surface

Question 31

The eye lens lies behind the _______ and bends light by moving back and forth to and from the surface of the eye

Answer 31

Iris

Question 32

The _________ allows our eye to focus

Answer 32

Lens

Question 33

The Retina is where the ______________ cells are located

Answer 33

Photoreceptors

Question 34

Rods and cones are _____________

Answer 34

Photoreceptors

Question 35

Cones are for _________ and rods are for ____________

Answer 35

Color, black and white

Question 36

Rods and cones relay information to _______ which carry it to the Optic nerve

Answer 36

Axons

Question 37

Afterimage is the persistent sensation of ____________

Answer 37

Color

Question 38

Trichromatic theory is that there are ___ types of cones

Answer 38

3, sensitive to red, green and blue

Question 39

Opponent Process theory is there are 3 combinations of cones

Answer 39

red-green, blue-yellow, light-dark

Question 40

Feature detectors are neurons in the_______ cortex.

Answer 40

Sensory

Question 41

Feature detectors are neurons in the sensory cortex that respond to:

Answer 41

Specific features of sensory information.

Question 42

Sensory adaption is:

Answer 42

The way in which organisms become more or less sensitive to stimuli that are constant.

Question 43

The process by which organisms become more or less sensitive to stimuli information is called:

Answer 43

Sensory adaptation

Question 44

The white part of the eye is called:

Answer 44

The sclera

Question 45

The Sclera is:

Answer 45

The white part of the eye

Question 46

Presbyopia is:

Answer 46

Where your lens becomes more brittle and less able to focus on close-up objects as you age

Question 47

The value of a color is its degree of:

Answer 47

Brightness

Question 48

Value refers to:

Answer 48

A color’s brightness

Question 49

Saturation refers to how ______________ a color is

Answer 49

Intense

Question 50

If you are a trichromat you have:

Answer 50

Normal vision

Question 51

If you are a monochromat you are:

Answer 51

Colorblind

Question 52

Dichromats can distinguish between ______ colors

Answer 52

2