visual illusions

Question 1

types of illusions

Answer 1

• ponzo illusion
• muller-lyer illusion
• rubins vase
• ames room
• necker cube
• kanizsa triangle

Question 2

ponzo illusion

Answer 2

Misinterpreted depth cue, perceive horizontal line higher up as longer

Question 3

muller-lyer illusion

Answer 3

Misinterpreted depth cue, two vertical lines the same length, line with outgoing fins appear longer

Question 4

rubins vase

Answer 4

Ambiguous figure, face and vase, both pictures correct, brain alternates between both options

Question 5

ames room

Answer 5

Misinterpreted depth cue, room shape of a trapezoid, people seen as different sizes even though they are the same

Question 6

necker cube

Answer 6

ambiguous figures, two possible interpretations of image, brain can’t decide which is correct.

Question 7

kanizsa triangle

Answer 7

fiction, illusory contours create impression of a second triangle

Question 8

explanation of visual illusions

Answer 8

• size constancy
• misinterpreted depth cues
• ambiguous figures
• fiction

Question 9

size constancy

Answer 9

objects perceived as constant size despite size on retina changing with distance

Question 10

misinterpreted depth cues

Answer 10

objects apparently in the distance scaled up by the brain to look normal size, cause visual illusions
Eg Ponzo illusions
Muller Lyer illusion

Question 11

ambiguous figures

Answer 11

two possible interpretations of image, brain can’t decide which is correct.
Eg Necker cube, Rubin’s vase

Question 12

fiction

Answer 12

seeing something which is not there, eg kanizsa triangle

Question 13

draw the visual illusions

Answer 13

google it