Top-down Processing

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Top-down Processing

• Examples

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Perception is everything cake anyone???
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Kitty Litter Cake!!!

• Serving Size 24
• Note This is a fun cake! It might look gross,
  but it does taste good!Ingredients
• 1 (18oz) box Spice or German Chocolate Cake Mix
• 1 (18oz) box White Cake Mix
• 1 Package White Sandwich Cookies
• 1 Large Box Vanilla Instant Pudding Mix
• 12 Small Tootsie Rolls
• 1 Large Bowl or container similar to a Kitty
  Litter Box
• 1 Plastic Scoop
• Green Food Colouring

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Language

• Aoccdrnig to a rscheearch at Cmabrigde
  Uinervtisy, it deosnt mttaer in waht oredr the
  ltteers in a wrod are, the olny iprmoetnt tihng
  is taht the frist and lsat ltteer be at the rghit
  pclae. The rset can be a total mses and you can
  sitll raed it wouthit a porbelm. Tihs is bcuseae
  the huamn mnid deos not raed ervey lteter by
  istlef, but the wrod as a wlohe.

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Vision what do you see?
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Vision Experiment

• As a class you are divided into two groups.
• Group One keep your eyes open
• Group Two close your eyes.

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Group One

• Quack, quack

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• Group Two open your eyes.
• Group One close your eyes.

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Group Two

• Carrot Eater

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What do you see?
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Blind Spot

• Look around. Do you see a blind spot anywhere?
  Maybe the blind spot in one eye is in a different
  place than in the other eye so you dont notice
  it because one eye makes up for the other.
• Close one eye and look around again. Now do you
  see a blind spot? Maybe its just a tiny blind
  spot so small that your brain cant see it.

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Actually, its a pretty BIG blind spot

• Close your left eye and stare at the cross
  mark in the diagram with your right eye. Off to
  the right you should be able to see the spot.
  Don't LOOK at it just notice that it is there
  off to the right (if its not, move farther away
  from the computer screen you should be able to
  see the dot if you're a couple of feet away). Now
  slowly move toward the computer screen. Keep
  looking at the cross mark while you move. At a
  particular distance (probably a foot or so), the
  spot will disappear (it will reappear again if
  you move even closer).
• So, as you can see, you have a pretty big blind
  spot, at least as big as the spot in the diagram.
  What's particularly interesting though is that
  you don't SEE it. When the spot disappears you
  still don't SEE a hole. What you see is something
  the brain is making up, since the eye isn't
  actually telling the brain anything at all about
  that particular part of the picture.

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Now define

• After seeing various examples of top-down
  processing, formulate a definition of top-down
  processing. Use an example in your definition.

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Definition can a non-Spanish speaker please read.

• Procesarriento de arriba a abajo procesamertio de
  informacion dirigida por procesos mentales
  superiores, como cuando determinamos nuestras
  percepciones a partir de nuestra experiencia y
  nuestras expectativas.

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in English. Top-down processing is

• Information processing guided by higher-level
  mental processes, as when we construct
  perceptions drawing on our past experience and
  expectations.

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Bottom Up processing is

• The most basic sensation and perception. Entry
  Level sensory analysis.

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Comparing the two look at the picture titled
The Forest has Eyes.
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• Bottom Up we were able to see the lines,
  colors, and shapes that formed the horses, rider,
  and surroundings.
• Top Down we direct our attention to the pieces
  of the painting that give the title its meaning
  and look for the unexpected The Forest Has
  Eyes.