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Psychology 101 > Sensation and Perception(C3) > Flashcards

Sensation and Perception(C3) Flashcards

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1
Q

What is Sensation?

A

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

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2
Q

Sensation is the stimulation of _____________

A

Sensory Receptors

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3
Q

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

A

Sensory Information

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4
Q

What is Perception?

A

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

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5
Q

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

A

Perception

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6
Q

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

A

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

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7
Q

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

A

50% of the time

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8
Q

What is difference threshold?

A

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

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9
Q

What does JND stand for?

A

Just noticeable difference

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10
Q

What is JND?

A

The minimum difference of sensation a person can detect

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11
Q

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

A

Webster’s Constant

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12
Q

What are the 3 ways of assessing sensation and perception?

A
  1. Absolute Threshold 2. Difference Threshold 3. Signal Detection Theory
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13
Q

What is Signal Detection Theory?

A

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

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14
Q

What is subliminal stimulation?

A

Sensory stimulation below a persons absolute threshold for conscious perception.

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15
Q

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

A

Stimulus perception

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16
Q

Specific neurons respond to specific features of a _________________

A

stimulus

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17
Q

Top down processing perceives:

A

The whole, followed by perception of the parts

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18
Q

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

A

Top down processing

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19
Q

Bottom up processing is:

A

Perception of the parts leading to perception of the whole

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20
Q

Perceiving the parts before perceiving the whole is called

A

Bottom up processing

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21
Q

Gestalt Psychology is:

A

Perceiving stimuli based on the entirety of their features

22
Q

Sensitization is a ___________ adaptation

A

Positive- perceiving a stimuli more

23
Q

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

A

Sensitization

24
Q

Desensitization is a _____________ adaptation

A

When you become less sensitive to a stimuli

25
Q

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

A

Desensitization

26
Q

Light is electro________ energy

A

magnetic

27
Q

Within visible light, color is determined by:

A

Wavelength

28
Q

Light enters the eye at the _________

A

Pupil

29
Q

The Iris muscle is the __________ part of the eye

A

Colored

30
Q

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

A

surface

31
Q

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

A

Iris

32
Q

The _________ allows our eye to focus

A

Lens

33
Q

The Retina is where the ______________ cells are located

A

Photoreceptors

34
Q

Rods and cones are _____________

A

Photoreceptors

35
Q

Cones are for _________ and rods are for ____________

A

Color, black and white

36
Q

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

A

Axons

37
Q

Afterimage is the persistent sensation of ____________

A

Color

38
Q

Trichromatic theory is that there are ___ types of cones

A

3, sensitive to red, green and blue

39
Q

Opponent Process theory is there are 3 combinations of cones

A

red-green, blue-yellow, light-dark

40
Q

Feature detectors are neurons in the_______ cortex.

A

Sensory

41
Q

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

A

Specific features of sensory information.

42
Q

Sensory adaption is:

A

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

43
Q

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

A

Sensory adaptation

44
Q

The white part of the eye is called:

A

The sclera

45
Q

The Sclera is:

A

The white part of the eye

46
Q

Presbyopia is:

A

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

47
Q

The value of a color is its degree of:

A

Brightness

48
Q

Value refers to:

A

A color’s brightness

49
Q

Saturation refers to how ______________ a color is

A

Intense

50
Q

If you are a trichromat you have:

A

Normal vision

51
Q

If you are a monochromat you are:

A

Colorblind

52
Q

Dichromats can distinguish between ______ colors

A

2

Psychology 101 (14 decks)

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