Module 3 Lesson 2 - Perception Flashcards

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1
Q

What is the Gestalt Principle?

A

It is a perception principle that helps people interpret what they see. Wertheimer believed that our brain tries to perceive information as a meaningful whole.

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2
Q

What does Gestalt mean and who was it created by?

A

“An organized whole.” This was created by Max Wertheimer.

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3
Q

6 parts of Gestalt psychology?

A

Laws of…
- Closure
- Pragnanz
- Proximity
- Similarity
- Continuity
- Inclusivity

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4
Q

Describe Closure.

A

According to Gestalt psychology, when a sensation is incomplete, our psyche fills in the gaps.

Ex. When we see a partially written word or drawn picture, we are able to “fill it in.”

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5
Q

Describe Pragnanz.

A

Our psyche will make a sensation full or complete. This is common in children when they attempt to explain a concept they have heard without full understanding of.

Ex. “The man took mommy away in his car” when in reality, the mom called a Lyft or Uber for a ride.

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6
Q

Describe Proximity.

A

Objects that are close together are perceived as being together even when they aren’t.

Ex. A person was talking to me about how they liked Arby’s but I thought they were talking about RVs for several minutes! They were just passing an RV lot so the brain made the conversation and visual input the same even when they were vastly different.

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7
Q

Describe Similarity

A

Items that are colored, drawn alike, or shaped similarly can be viewed as the same when they are actually different.

Ex. Geometrical figures in black and white are different, but may seem the same since they are in the same color.

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8
Q

Describe Continuity

A

When something that is extended without a break is perceived as a whole figure.

Ex. The “connecting-the-dots” activities done in Elementary school could sometimes be seen as a whole figure even before it was actually completed.

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9
Q

Describe Inclusivity

A

When elements are perceived more readily in a figure than other elements.

Ex. In the Amazon logo, the arrow line underneath shows that they have everything from A-to-Z with a smile.

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10
Q

What are Perceptual Sets?

A

They are mental predispositions that cause us to perceive one object instead of another.

Ex. A popular image of an object in the middle of the lake is shown to people. Those who are familiar with the Loch Ness monster are more inclined to say that they see the Loch Ness monster. The same goes for UFOs, Sasquatches, and ghosts.

Prior knowledge can influence what we seem and people may also be primed to see images as well.

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11
Q

What did the Muller-Lyer illusion demonstrate?

A

It demonstrated the influence culture had on perception.

In the experiment, Muller-Lyer took arrows, with one on top of the other. People were told to mark the center of each arrow. It was noted that the altered width, angles, and direction of the arrow impacted how the ‘center’ was chosen.

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12
Q

What are the two types of cues that help us perceive?

A

Binocular and Monocular cues

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13
Q

What are the two kinds of binocular cues?

A

Retinal Disparity and Convergence

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14
Q

Describe Retinal Disparity.

A

When an image enters each eye, the image will differ. The brain then takes the signals it receives from both eyes to create a perception for interpretation of the image. This helps us understand depth and dimension.

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15
Q

Describe Convergence.

A

When we see an object, we are able to judge the distance of the object based on the angle of convergence. Objects further away have smaller angles, whereas closer objects have larger angles.

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16
Q

What are the 7 types of monocular cues?

A
  • Relative Size
  • Interposition
  • Relative Height
  • Relative Motion
  • Linear Perspective
  • Perceived Motion
  • Constancy
  • Depth Cues
17
Q

Describe Relative Size.

A

When two objects similar in size are seen, the one that casts a smaller retinal image is seen to be farther away.

18
Q

Describe Interposition.

A

Objects that block or partially block another object are seen as closer.

19
Q

Describe Relative Height.

A

Objects that are higher in the field of vision are seen as further away than those that are lower. Therefore, vertical images are perceived as longer.

20
Q

Describe Relative Motion.

A

Known as the motion parallax, a good example is when you fix your eyes on a stationary object while you are moving. The object thus appears to move, even though you are the only one who has moved. Another example is when the moon appears to be following your car as you drive.

21
Q

Describe Linear Perspective.

A

Parallel lines like railroad tracks seem to come together and converge in the distance, which helps us to judge distance.

22
Q

Describe Perceived Motion.

A

To perceive motion, there is the…

Stroboscopic Effect - Flashing images give the illusion of motion, like motion pictures.

Phi Phenomenon - Flashing lights give the illusion of motion, like the lighted signs that seem to scroll information across the screen.

23
Q

Stroboscopic Effect

A

Flashing images give the illusion of motion, like motion pictures.

24
Q

Phi Phenomenon

A

Flashing lights give the illusion of motion, like the lighted signs that seem to scroll information across the screen.

25
Q

Describe Constancy.

A

The brain desires to maintain the constant perception of an object even as sensation changes it. There is shape, size, and color constancy. The Ponzo-illusion is a great example of linear perspective and shape constancy.

26
Q

What was Eleanor Gibson’s experiment about?

A

It explored depth cues, in which she tested whether young children could perceive depth.

27
Q

Top-down Processing

A

This starts when our brains (cognition) and the flows to our senses. It is more of a “big picture” view before going to details. For example, you see a large university campus before noticing the individual buildings.

  • Uses background knowledge to influence perception
  • Theory driven.
28
Q

Bottom-up Processing

A

The opposite of top-down processing; we become aware through our senses, which the brain interprets. We grasp a small detail before working our way up to see the big picture. Here, we would see the fountain on a university campus before realizing that it is a part of the vast campus.

  • Stimulus is influencing my perception.
  • Data driven.
29
Q

What have we experimented on regarding parapsychology?

A

Psychic power, clairvoyance, and mind reading.

30
Q

What happened with Daryl Bem’s experiment?

A

He experimented with ESP (Extrasensory Perception) and had his findings disputed for years. The APA could not 100% sustain any of his claims, but Bem sought to prove pre-cognition (people can recall facts before they’ve learned them). Numerous studies have failed to replicate his eight-year experiment despite trying.

31
Q

Gustav Fechner

A

A German-born philosopher who founded psychophysics - the study of sensation and stimuli

32
Q

David Hubel

A

A Canadian-born Nobel Peace Prize winner (along with Roger Sperry and Torsten Wiesel) for brain function research - particularly sensory input and the brain.

33
Q

Ernst H. Weber

A

A German-born scientist who discovered touch and the difference in perception.

34
Q

Torsten Wiesel

A

Swedish-born neurobiologist and the 1981 co-winner of the Nobel Peace Prize (along with David Hubel and Roger Sperry) for brain function research - particularly sensory input and the brain.