2. We Dont See With Our Eyes We See With Our Brain
What does this sign really say ?
Are you sure about that, look a little closer, are you still
sure?
3. Our Visual Analysis
Many steps are involved
Retina first assembles photons into little movie-like
structures.
Visual cortex processes these streams, some registering color,
motion etc.
All the many streams collapse into two giant streams: Ventral
stream- recognizes what a object is and the color. Dorsal Stream-
recognizes the location of an object and if it is in motion.
We then combine all that information back together so we can
see.
4. Vision And The Brain
VISUAL CORTEX- IS A BIG PIECE OF NEURAL ACERAGE AND THE VARIOUS
STREAMS THAT FLOW INTO THE SPECIFIC PARCELS
THERE ARE THOUSANDS OF PARCELS AND MOST HAVE SPECIFIC
FUNCTIONS
SOME ONLY SEE DIAGONAL LINES,SOME ONLY COLOR INFORMATION IN A
VISUAL SIGNAL, SOME ONLY EDGES OR MOTION.
DAMAGE TO ANY OF THESE COULD CAUSE TERRIBLE PROBLEMS.
Visual cortex
5. Is What We See What Is Actually There?
WE EXPERIENCE OUR VISUAL ENVIRONMENT AS A FULLY ANALYZED OPINION
ABOUT WHAT THE BRAIN THINKS IS OUT THERE
WE SEE WHAT OUR BRAIN TELLS US WE SEE AND ITS NOT 100%
ACCURATE.
Did you count three? The reason they look like more different
colors is because our brain judges the color of an object by
comparing it to surrounding colors. In this case, the stripes are
not continuous as they appear at first glance. The orange stripes
dont go through the "blue" spiral, and the magenta ones dont go
through the "green" one.
On the next slide is a zoomed in copy so maybe you can convince
yourself there really areonly 3 different colors: magenta, green,
blue and orange.
6. This is the color of the blue and green spirals, there is no
blue spiral they are actually both green.
7. Our Brain Is In Control Not Our Eyes!
OUR BRAIN HELPS US CREATE PERCIEVED REALITY-SEEING THINGS THAT MAY
NOT ACTUALLY BE THERE
YOU SEE WHAT THE BRAIN WANTS YOU TO SEE.
THE BRAIN IGNORES THE LACK OF VISUAL INFORMATION RATHER THAN
CALCULATING WHATS MISSING THEREFORE NOT GETTING 100% WHATS
THERE.
AN EXTREME EXAMPLE OF THIS WOULD BE CHARLES BONNET
SYNDROME.
8. Visual Inputs can often time trump your highly trained
senses
In a study done by a group of brain researchers in Europe focused
on wine tasters, red food coloring was added to white wine to make
it look like red wine. When the wine tasters tasted the
food-colored wine, they described it as having all the same
characteristics of true red wine, when actually what they were
tasting was white wine. Their minds were fooled by what they
saw.
The nose smells what the eye sees
9. Vision Is Dominant
Vision takes up half of everything we do and takes up half of the
brains resources.
Without vision we wouldnt be doing a whole lot of anything. (would
u rather be blind or deaf?)
Vision is our most dominant sense.
Which monkey would you rather be?
10. Pictures vs. Text
Hear a piece of information, and three days later you'll remember
10% of it. Add a picture and you'll remember 65%.
WHEN IT COMES TO MEMORY THE MORE VISUAL INPUT THE MORE LIKELY IT IS
TO BE RECONGINIZED AND RECALLED.
THIS IS CALLED PSE OR PICTORIAL SUPERIORITY EFFECT.
NO MATTER HOW EXPERIENCED A READER YOU ARE YOU WILL STILL STOP AND
PONDER INDIVIDUAL TEXTUAL FEATURES THROUGHOUT MANY TEXTS YOU READ
THROUGHOUT OUR LIFE.
OR SMILE
Which will you remember better the picture or word SMILE
?
11. Vision As a Tool =]
which did u notice first?
Vision is the best single tool we have for learning.
For visual learners this is an very important tool.
We pay special attention to color, size and motion as evident in
everyday life.
12. If the brain were so simple we could understand it, we
would be so simple we couldn't.
-Lyall Watson
HeartMath LLC (2007). HeartQuotes: Quotes of the Heart. Retrieved
July 10, 2009 from , Web site:
http://www.heartquotes.net/Brain.html
13. Works Cited:
Book:
Medina, J. (2008). Brain Rules. Seattle, Washington: Pear
Press.
Journal article:
Franz, V.H. ,Hesse, C. ,Kollath, S. (2009). Visual illusions,
delayed grasping, and memory: No shift from dorsal to ventral
control.. Neuropsychologia, 47(6) , 1518-1531.
Internet resources:
Medina, J. (2009). Brain Rules. Retrieved July 10, 2009 from , Web
site: http://brainrules.net/vision
Plait, P. (2009). The blue and the green. Retrieved July 10, 2009
from , Web site:
http://blogs.discovermagazine.com/badastronomy/2009/06/24/the-blue-and-the-green/
HeartMathLLC (2007). HeartQuotes: Quotes of the Heart. Retrieved
July 10, 2009 from , Web site:
http://www.heartquotes.net/Brain.html
Dr Fink, A (2006). What is Unique About The Sense of Vision?.
Retrieved July 10, 2009 from , Web site:
http://eyedoctor.homestead.com/Senses.html
Royal National Institute of Blind People (2009). Charles Bonnet
Syndrome. Retrieved July 10, 2009 from , Web
site:http://www.rnib.org.uk/xpedio/groups/public/documents/PublicWebsite/public_rnib003641.hcsp#P2_23
