Visual object recognition Week 3

Question 1

All sensory information is coded in the bran as ______

Answer 1

Action potentials.

Question 2

The brain receives an exact copy of the environment. T or F

Answer 2

False

Question 3

Our brains receive only a small subset of all available information. T or F

Answer 3

True

Question 4

We could not function if we attended to all possible sensory data.

Answer 4

True

Question 5

An amount of our subjective experience is based on _____

Answer 5

Interpretation.

Question 6

_____isi the process though which we make sense of sensory information

Answer 6

Perception

Question 7

Typically fast, automatic, effortless and unconsious

Answer 7

perception.

Question 8

We are usually only aware of our____When they go wrong.

Answer 8

Perceptual processes.

Question 9

Perception is a constuctive process.

Answer 9

True

Question 10

Damage to certain brain regions (posterior occipital cortex and/or temporal cortex causes

Answer 10

Visual agnosia

Question 11

what is visual agnosia

Answer 11

Inability to recognize objects visually.

Question 12

First stage of visual object recognition is___

Answer 12

To differentiate figure from ground.

Question 13

Gestalt principal 1: we infer the continuity of a visual object despite ambiguous foreground structures

Answer 13

Continuity .

Question 14

Gestalt principal 2: We can autocomplete images.

Answer 14

Closure

Question 15

We love

Answer 15

symmetry.

Question 16

We have a tendency to group visual objects together based on ____to one another

Answer 16

Proximity.

Question 17

Similar principles underlie our preference for noticing ____

Answer 17

Similarities

Question 18

Our ability to perceive the world as stable, despite constant updating, movement and other differences in visual information.

Answer 18

Perceptual constancy

Question 19

we learn to account for differences in perception based on ____

Answer 19

Relative position.

Question 20

Priciples: distant objects appeat smaller and need to be scaled up; objects viewed from different angles maintain their shape

Answer 20

Size and shape constancy.

Question 21

We try to correct for brightness and/or shade when perceiving colour

Recall that we do not sense colour in low-light conditions

Differences in contrast between foreground and background can alter our perception of colour

Thus, the grey circle here is perceived differently based on the background

Answer 21

Brightness constancy

Question 22

We sense 2D objects, We perceive 3D objects.
Depth perception is, Therefore?

Answer 22

Something we construct from 2D visual infromation.

Question 23

• Do not require learning; are hard wired
• Primarily used for close perception

Answer 23

Binocular cues

Question 24

-learned
- Can be accomplished with only one eye
- Manipulated by artists

Answer 24

Monocular cues

Question 25

• Depth perception gained by comparison of slight differences in information between eyes
  -works best close up
• Not learned

Answer 25

Binocular cue 1; Retinal disparity.

Question 26

-The brain obtains information on the closeness of objects to us from somatosensory feedback from ocular muscles.
- Not learned but requires two functioning eyes

Answer 26

Binocular cue 2: convergence

Question 27

Monocular cue 1

Answer 27

; elevation

Question 28

Monocular cue 2

Answer 28

Texture

Question 29

Monocular cue 3

Answer 29

linear perspective

Question 30

Monocular cue 4

Answer 30

Reletive size

Question 31

Monocular cue 5

Answer 31

Interposition

Question 32

• allows us to account for different and changing expectations of the environment
  -facilitates perception
  -explains context differences and speed perception.

Answer 32

Top down processing.