Illusion workshop

Post on 27-Jun-2015

229 views 0 download

Tags:

description

A fun collection of visual illusions.

transcript

Making sense of what you see

Bistable perception

QuickTime™ and aGIF decompressor

are needed to see this picture.

QuickTime™ and aGIF decompressor

are needed to see this picture.

Visual awareness

So how does it work?

•Eye movements

•Expectations

•Network of frontal and parietal areas

•Activation in regions associated with what you perceive

Apparent motion

How does it work?

•Micro saccades: involuntary movements we make even when staring at a still object

•Refresh the photoreceptors in the eye

•Normally we don’t notice the motion

•The contrasts and shapes confuses us

Otero-Millan, Macknik, Martinez-Conde, JoN, 2012

Change blindness

QuickTime™ and aQuickDraw decompressor

are needed to see this picture.

http://www.youtube.com/watch?v=6JONMYxaZ_s

http://www.youtube.com/watch?v=vBPG_OBgTWg

QuickTime™ and a decompressor

are needed to see this picture.

QuickTime™ and a decompressor

are needed to see this picture.

Hybrid images

How does it work?

•Viewing distance, timing

How does it work?

•Saccadic eye movement

•Attention

•Expertise

•We don’t perceive and remember all details

Artistic illusions

Jonty Hurwitz

via Edgar Mueller)

Thank you!

QuickTime™ and a decompressor

are needed to see this picture.

QuickTime™ and a decompressor

are needed to see this picture.