PSYCHWRITE #14:
Date: 1 pt
Copy question: 1 pt
Answer (in at least 3-5 lines): 3 pts
Are you more of a creative, artistic person, or more logical and
analytical person?
How do you know?
What does this mean in terms of being right or left brained?
EXAGGERATION OF A KERNEL OF TRUTH
Are some people “left-brained” and others “right-brained?”
1. Good evidence that two sides of brain differ in their functions.
• Injury
• Brain imaging techniques = differences in activity
when doing cognitive tasks
RIGHT HEMISPHERE DAMAGE (IGNORES LEFT)
2.
“SPLIT-BRAIN PATIENTS”: RESEARCHERS
Roger Sperry
Michael Gazzaniga
3.
CORPUS CALLOSUM
RESEARCH
Evidence for superiority of one or other hemisphere for
performing certain tasks:
“Split brain” patients
4. Epileptic seizures
Sever nerve tracts connecting left/right hemispheres
5. LONGITUDINAL FISSURE (LONG)
7. SCIENTIFIC AMERICAN FRONTIERS
http://www.youtube.com/watch?v=lfGwsAdS9Dc
CORPUS CALLOSUM…
YOUR INFORMATION HIGHWAY
• 2 hemispheres share information extensively
• Two hemispheres are much more similar than
different in their functions
• “Pop-psychology’s” take… too simplistic
8.
LEFT FIELD IS PROCESSED BY RIGHT.
RIGHT FIELD IS PROCESSED BY THE LEFT.
9.
The Optic
Chiasm is
the region
for crossover.
10. Visual Cortex
– at the back.
WHAT DO YOU SEE?
WHAT ABOUT THE SNOWMAN SCENE?
11: MULTIPLE CHOICE QUESTION
A word “key” is briefly flashed in the left visual field and
the word “ring” is briefly flashed to the right visual
field of a split-brain patient. The individual will be able
to
a. say “key”
b. say “ring”
c. pick out a key from a box using the right hand
d. draw a picture of a key using the right hand
HEMISPHERES IN THE BRAIN (RIGHT HANDED)
12. LEFT
13. RIGHT
Language
Spatial
Logic
Facial recognition
CONCLUSIONS?
14.
Left & right hemisphere are RELATIVELY better at
different mental activities.
Differ in HOW they process tasks rather WHAT
they process.
CONCLUSIONS
15.
Example: Language
Left: Better at specifics of speech (grammar and word
generation)
Right: Better at intonation and emphasis of speech
16. SPATIAL RIGHT?
Right : better at dealing with a general sense of space
Left : becomes active when the person locates objects
in specific places
17 & 18. LANGUAGE CENTERS
THE BRAIN #6
Language & Speech: Broca’s & Wernicke’s areas
http://www.learner.org/resources/series142.html?pop=yes&pid=1574
Paul Broca
Tan’s brain
HEMISPHERECTOMY: CAMERON MOTT
BRAIN PLASTICITY
http://www.youtube.com/watch?v=2MKNsI5CWoU
RESEARCH ON CREATIVITY & THE BRAIN
Creativity does not involved a single brain region or
single side of the brain.
Depending on the stage of the creative process AND
what you are trying to create, you use different brain
regions.
These brain regions WORK TOGETHER…a TEAM!
19. CONCLUSIONS…YOU ARE WHOLE-BRAINED!
It is not that one hemisphere or the other can’t
perform a given task;
It’s just that one of them can perform it faster
and better than the other!
JILL BOLTE TAYLOR
http://www.ted.com/talks/jill_bolte_taylor_s_powerful_stroke_of_insight?language=en