Perception Flashcards

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1
Q

Define perception

A

An integration of stimulation from the senses involving top down processes

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2
Q

What are too down processes?

A

Interpreting the information of sensed with the involvement of memory, expectations, mood, current context and beliefs.

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3
Q

What is perceptual constancy

A

Perception remaining consistent despite variations in raw data

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4
Q

What is the perception of brightness dependent on other than the amount of light?

A

The amount of light reflected from other objects.

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5
Q

What is a perceptual set

A

Our readiness to interpret stimuli in a certain way depending on expectations, experience and psychological state.

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6
Q

What are perceptually ambiguous figures?

A

Figures that can be perceived in two different ways

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7
Q

Who wore inverted goggles and adjusted well?

A

Stratton

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8
Q

What is depth perception?

A

Our ability to judge distance

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9
Q

What is the absolute distance

A

The distance between the observer and object

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10
Q

What is relative distance

A

The distance between objects

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11
Q

What is convergence?

A

Eyes move together as an object gets closer

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12
Q

What is binocular retinal disparity

A

Slightly different views of the world presented to each eye allow the brain the interpret depth information.

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13
Q

What is motion parallax

A

Objects that are closer to the observer appear to move faster

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14
Q

What is relative size?

A

The size of an object related to others around it

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15
Q

What is the moon illusion?

A

The moon on the horizon seems larger because we assume objects are farther away.

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16
Q

What is linear perspective?

A

The apparent convergence of parallel lines on the horizon

17
Q

What is a texture gradient?

A

Objects at a distance are denser and less detailed

18
Q

What do distance objects look like in an aerial perspective?

A

Distant objects are fuzzy due to moisture and particles in the air.

19
Q

What happens when an object occluded another

A

It appears to be closer

20
Q

What is the muller lyre illusion?

A

Depth cues suggest the long line is closer.

21
Q

What is the ponzo illusion?

A

Linear perspective suggests objects are further away.

22
Q

What is the Ames room illusion?

A

Depth cues suggest people are the same distance from the observer

23
Q

What three cues allow us to locate objects using auditory perception?

A

The difference in intensity of sound in the two ears
The overall intensity of the sound
The difference in time it takes to reach difference ears

24
Q

Why do stable objects remain stable if the observer is moving?

A

Our perceptual system compensated for voluntary eye movements

25
Q

How do we perceive motion?

A

Distinguish between the object and observer moving
Using the intensity of sound

26
Q

What is apparent motion?

A

When our perceptual systems fill in the gaps on motionless images.

27
Q

What is the phi phenomenon?

A

Motion perceived due to the succession of flashing lights

28
Q

What happens if an object is near a stationary one

A

It induces motion

29
Q

What is the motion after effect?

A

After moving forward for some time then stop everything outside seems to be moving backwards.

30
Q

What are bottom up processes used as in feature analysis

A

We look at the features before perceiving a whole

31
Q

What does Gestalt top down processes assume

A

The whole is greater than the sum of parts

32
Q

What are organising principles used to form Gestalt?

A

Figure/ground distribution and grouping principles.

33
Q

What are some grouping principles in sound perception

A

Proximity
Good continuation
Closure

34
Q

What is gestalt often accompanied by?

A

An AHA! Moment