WorksheetsVisual Illusions
Total questions: 19
Worksheet time: 24mins
What is an optical illusion?
A really cool drawing.
A picture of something you can't explain.
Something that tricks your mind and your eyes into believing something is happening when it really is not.
It is something similar to a landscape.
A stimulus is considered an ‘illusion’ because...
Even though we all experience it, scientists cannot explain why this stimulus works the way it does
Our experience of this stimulus is affected by our cultural background and early experience
There is a mismatch between physical reality and our own interpretation of it
We experience the stimulus differently every time we view it
Which of the following visual depth cues cannot be used by the person viewing the Ames Room?
Accommodation
Retinal Disparity
Relative Size
Texture Gradient
People viewing the Ames room tend to maintain ( ) constancy but cannot maintain ( ) constancy
Shape, Size
Brightness, Colour
Size, Shape
Position, Brightness
Psychologist are interested in studying illusions such as the Ames room mainly
it's an architectual wonder
To learn more about brain organisation and functioning
because such phenomena are fascinating
in order to help people from being fooled by them
Which of the following is NOT an explanation proposed for why the Muller-Lyer illusion occurs?
More eye movements are used to view the line with the inward pointing arrows compared to the line with outward pointing arrows and hence this line is perceived as being longer.
The feather tail line resembles an inner corner of a room and the arrowhead line resembles the outer corner of a building. As the inner corner of a room is further away from the viewer, the feather tail line is perceived as longer.
Cross- cultural studies show that those raised in rural areas with minimal or no experience with angles, edges and corners of buildings are much less likely to perceive the illusion.
The illusion only works when the lines are vertical and viewers misapply size constancy in perceiving the inward pointing arrowhead line as longer.
The Ames Room demonstrates that
viewing objects at a distance can distort perception
perception is more accurate when we use monocular cues
we can always maintain size constancy over shape constancy
if two things appear to be the same distance away but have retinal images indicating difference in size, then perceived size is determined by the size of the retinal images
The Muller Lyer Illusion demonstrates that if the retinal images of two lines are identical, then people who grew up in 'non-carpentered worlds'.....
cannot be fooled
purposefully ignore 'carpentered world' cues
will usually perceive the lines as the same
can make perceptual errors unless a ruler is available
the organisation and interpretation of sensory information is called
Sensation
Intelligence
Enlightenment
Perception
visual illusions are scientifically explained as
mind blowing
misinterpreted depth cues
misunderstood messages
misleading
the famous room designed to play tricks on your visual depth cues is
Room 101
the Muller-Lyer room
Rubens Room
the Ames room
which one is not a Monocular depth cue
relative size
Occlusion
Linear perspective
Ambiguity
Which is not believed to influence our perceptual set
Genes
Emotion
Motivation
Culture
