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MEDFORD MAIL TRIBUNE. MEDFORD. OREGON
THURSDAY. JUNE 20. IMS
B 3
'Monkey Shines'
Backfire on
Lab Animals
By WALTER C. EVA
Seattle - HIPS - A Univer
sity of Washington research
er is conducting "split-brain"
surgery on monkeys and he
hopes his research will an
swer some questions which
have battled scientists for cen
turies. D r . Mitchell GUckstein
says the split brain technique
has the effect of endowing the
monkey with two brains that
can operate independently of
eacn outer.
By severing the corpus cal
losum, a bundle of nerve fi
bers which connect the two
halves of the brain, GUckstein
has found that each hand
can be taught different be
havior patterns. What one
hand is able to do the other
is unable.
The implications for ad
vancing the body of knowl
edge about brain function are
considerable.
No Clear-Cut Function
"Most of the brain has no
clear - cut function that we
know of," GUckstein said,
"We know roughly that cer
tain areas are responsible for
motor function, and touch,
visual and auditory sensations.
"However, we know very
little about how these areas
rtmmunicate with each oth-
ii for example, how the
eye and the hand work to
gether beautifully in mil
lions of ways."
GUckstein said the compari
son of the brain to a network
of telephone wires has
proven to be of little value
in understanding the brain's
actual function.
To study the coordination
of the eye and the hand in
the monkey, GUckstein sev
ered another bundle of nerves
the optic chiasm, which trans
ports sight sensations from
the eye to the opposite side
of the brain. In this way, the
picture that one eye sees will
go to that side of the brain
only.
To Perforin Tricks
' With these two bundles of
nerves bisected, GUckstein
said, the animal will still be
able to perform certain tricks
which it had learned previ
ously. But now, if the pre
frontal areas of the brain are
also removed, the monkey
loses the ability to do these
tasks, he added.
Apparently, the monkey
forgets how to perform the
tricks, leading to the conclu
sion that the prefrontal areas
are somehow involved in the
memory of experiences which
require coordination of t h e
hand and the eye, he said.
GUckstein said if one pre
frontal area is removed, the
animal will be able to master
the task provided the eye on
the intact side if the brain
is permitted to see how it is
done, but not if that eye is
covered.
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Travel-Talk Given
At YA Domiciliary
The final travel-talk in the
1962-63 series sponsored by
the American Red Cross at the
Veterans Administration
Domiciliary, White City, was
aivpn parlier this week bv
Mrs. Clarence Miller of Med
ford, in the Domiciliary the
atre. Thp talk, illustrated by
color slides, described the trip
taken two years ago by Mr.
and Mrs. Miller. Miller teach
es at Crater High school. The
Millers wer joined by their
daughter, Carolyn, in London,
from where they toured Eng
land, Scotland, Wales and Ire
land by car.
Camping" out most of the
time, the Millers were able to
visit and photograph places
not on the usual tourist itin
erary. Among the more famous
places shown were the Shake
spearean theater and Ann
Hathaway's cottage at Strat-ford-on-Avon,
William Words
worth's cottage In the English
Lake country, and Tara, the
ruined stronghold of Ireland's
ancient kings.
The Millers went to Ostend,
Belgium, and from there to
Holland where they visited
Edam and Delft.
Following the talk refresh
ments were served. Those
hoinino in the serving includ
ed Mrs. Leatha Jones of the
American Red Cross and Miss
Enid A. Holmes, chief librar
ian at the Domiciliary, who
announced that a new series
et travel-talks will begin next
fill.
Perahera Festival
Observed in Ceyon
New York -UTO- Buddhists
t.. oil narts of the world
flock to the city of Kandy
In Cevlon for the festival of
Perahen in August, says Pan
American World airways.
On this occasion a tooth,
reputed to have been one of
Lord Buddah's, is taken from
temple, placed in golden
' casket and paraded through
the streets on the back of an
elephant, the airline says.
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