wk 12 sp

Question 1

classifications of visual illusions

Answer 1

• Distortions
• Ambiguous figures
• paradoxical figures
• Fictions

Question 2

examples of distortion illusions

Answer 2

.g. Muller-Lyer (2 lines with arrow heads, one inverted heads),

Ponzo(Two lines converge towards vanishing points, higher one seems further away and thus larger),

Poggendorff (straight line passes through rectangle, appears broken)

Question 3

examples of ambiguous illusions

Answer 3

e.g. Necker cube, Rubin vase

Question 4

examples of Paradoxical figures –

Answer 4

e.g. Penrose impossible objects

Question 5

examples of Fictions –

Answer 5

e.g. Kanizsa triangle (pacmans creating triangle)

Question 6

Ouchi illusion

Answer 6

thought to be caused by eye movements.

Eyes always moving slightly even when fixated

Brain cancels out the movement

In the Ouchi Illusion the pattern is such that the compensation is not necessary/different effect on different orientations, therefore the brain interprets that it must be moving.

Question 7

Distal stimulus

Answer 7

physical object in the environment

Question 8

Proximal stimulus

Answer 8

a representation of the distal stimulus

Question 9

psychophysical approach

Answer 9

study what ppl actually Perceive

measure relationship between stimulus and perception