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Users are dumb
and incredibly busy
  what we don’t see
Inattentional blindness
change blindness
spot the error message
before   after or next to
what we do see




                 http://flickr.com/photos/naoh
Pre-attentive processing
Colour is pre-attentive
Shape is pre-attentive
Where’s the red circle now?
Preattentive Processing
www.lisarienermann.com
the whole is more than the sum of its parts
Which way to the toilets?




                            Thisisbroken.com
gestalt principles
.




    From moonbird's Flickr stream
page elements create lines & shapes
http://flickr.com/photos/morgantepsic




   so common it becomes invisible
alerts
what the user sees
to sum up…
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
What The Eye Can't See
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What The Eye Can't See

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A version of the talk I originally gave to the Auckland Web Meetup - where I show a couple of strange perceptual phenomena that may explain the lack of usability in some websites.

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Transcript of "What The Eye Can't See"

  1. 1. Users are dumb
  2. 2. and incredibly busy what we don’t see
  3. 3. Inattentional blindness
  4. 4. change blindness
  5. 5. spot the error message
  6. 6. before after or next to
  7. 7. what we do see http://flickr.com/photos/naoh
  8. 8. Pre-attentive processing
  9. 9. Colour is pre-attentive
  10. 10. Shape is pre-attentive
  11. 11. Where’s the red circle now?
  12. 12. Preattentive Processing
  13. 13. www.lisarienermann.com the whole is more than the sum of its parts
  14. 14. Which way to the toilets? Thisisbroken.com
  15. 15. gestalt principles
  16. 16. . From moonbird's Flickr stream
  17. 17. page elements create lines & shapes
  18. 18. http://flickr.com/photos/morgantepsic so common it becomes invisible
  19. 19. alerts
  20. 20. what the user sees
  21. 21. to sum up…
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