The Prospector (El Paso, Tex.), Vol. 71, No. 13, Ed. 1 Tuesday, October 15, 1985 Page: 3 of 12
This newspaper is part of the collection entitled: The Prospector and was provided to The Portal to Texas History by the University of Texas at El Paso.
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The Prospector /October 15. 1983 / lnge
Psychology dept, uses EEG to study brain activity
By Catherine Larorko-Hauan
Df Whet
A freshman business major sat
quietly as a technician fed con-
ductive jelly through small holes
on a skull cap laced with sensors
“Electrical activity will be record,
ed from his cerebral cortex.
At a laboratory in the
psychology department, this head
gear is used as part of an elec-
troecephlogram (EEG) study to
record electical activity from the
cerebral cortex of the twain
The first work on humans
began in 1929 when Hans Berger
made recordings of electrical ac-
tivity from the brain Soldiers
who had skull injuries from
a World War I were used in his
research.
Needlee were pushed through
the scalp to the dermis Wires at
tached to the needles were con-
nected with electrical apparatus
used to amplify the voltage
changes from the turface of the
brain.
Newer applications, using
computers, can cut the time it
takes to decipher lengthy fre-
quency charts And Rene Ochoa,
the volunteer subject, must he
happy that needies are only used
in specialized clinical applications
, now.
Stephen Sands, assistant
psychology profenor, got the
idea from a stem that was
formed at a children’s hospital in
Boston Yet this computer costs
about a half a million dollars
The computer at UT El Paso was
programmed by Sande to be used
similiarly but it n an inexpensive
microcomputer.
Work on the computer began
while Sande was at Hell
Laboratories After three years
of daily programming, Sande’
self-financed computer war ready
Poo by Frank Masee
Rene Ochoa, freshman business major, undergoes an rier-
troencephlogram vest Oct 10 at the Alzheimer’s research laboratory
Cheryl Morrison, psychology teaching assistant administers an injec
tion into Ochoa’s skull cap.
tot lla application Into
Alzheimer’s research.
The EEG machine records elec
tical activity and amplifier it to
the computer can use the data,
Sandr said
it consists of minute electrical
voltages recorded from the scalp
and produced by the brain. Sands
explained
"It is presumed to detect cortal
electical activity near the
surface,” Sandy said
He explained that the EEG is
umihar to an electocardiogram
(EKG) But detecting electrical
activity through the skin is much
simpler than through the bony
structure which protects the
brain. Sands said
The EEO is used in both
research and clinical applica-
turns You can tell a satiety of
things about the state of con-
sciousnew,” he said
For instance, one might find
any twain abnormalities, give a
rough estimate as to what areas
of the twain are active and even
determine how awake a person is.
Sands said
It takes electical activity and
breaks it down into frequency
components
The delta frequency is related
to sleep If it is found in a waking
person, it can indicate damage
Sands card
Another activity, the theta
rhythm, is aho found in sleep and
in young children When found
in adults, there may be something
wrong.
The alpha frequency is cor
related with the eyes being closed
while the beta frequency shows
cognitive effort
“If I said your name, upon
hearing it, there would be alpha
frequency After thinking of
where it came from oi who said
it, there would be beta
frequency,” Sands said.
Presently, detecting epilepsy is
one of the most useful aspects of
the EEG Here, there is an abnor
mal spiking of the EEG. or a
hurst of large amounts of activi-
ty. Sands said.
All the functions of the
machine are not yet analyzed
There is more information in the
EEG than the human can
observe, Sande said
"The program allows us to see
this information and where on
the cortex the electical activity is
coming from." Sands said
fine general use of the I EG is a
legal beam death text
In addition, it can do
psychological tests that tap into
carious mental aspects
Some rough categories of I I G
tests are memory processes,
perception, wakefulness and tests
on the auditory and touch
systems
Terry Allen, psychology avis
tant professor, n presently using
the FEG to study the brain pro
cessing of emotion in five-month
old infants.
"In adults, when you are look
ing at positive emotions, the left
hemisphere is more active When
seeing negator emotions, the
right hemisphere is more active.
We're interested in seeing if that
is true for infants,” Allen said
A drama student has helped
make a videotape showing both
happy and sad emotions in the
first experiment, only the facial
expression will be shown Next,
the infant will only hear the
voice. And finally, both the facial
and vocal expression will be
given
It will be determined if the in
tant can realise the emotions in
each of these stages and the
brain's response to this informa
tion will be studied. Allen said
Graduate students working
with the IEG will gain valuable
experience. Sands said.
What’s your favorite?
Name El Paso’s best......
Everyone has favorites; favorite foods, favorite hangouts, favorite music, favorite people, etc. And The
Prospector wants to know what your opinions are. We’re planning a special issue for October 29th and
want to include your choices on El Paso’s best. So please take a minute to fill out the form below and
drop it in the big orange box at The Prospector offices, 105 Union East, before Oct. 22. WE W AM TO
KNOW WHAT YOU THINK!
MUSIC (Local Bands Only)
Best rock band
Best naw wave band
Bast county and wastarn
Best mariachi band
Best jazz band
Best rhythm and blues
FOOD
Best Mexican Restaurant
Best Chinese Restaurant
Best Italian Restaurant
Best Fast Food Restaurant
Best Seafood Restaurant
Best Pizza Restaurant
Best Delivered Pizza
Best Deli
Best Steak
Best Ribs
Best Fajitas
Best Hamburger
Best Sunday Brunch
Best Chill
Best Salad Bar
Best BBO
Best Burritos
Best Atmosphere
Best Service
Best Breakfast
Best Desserts
Best Ice Cream
Best Place to Eat When Someone Else Pays
Best Place to Eat When You Have to Pay
WATERING HOLES
Best Neighborhood Bar
Best Sleazy Bar
Bar with the Best Beer Selection
Bar with the Best Well Drinks
Bar with the Best Atmosphere
Bar with the Best Service
Best Happy Hour (Munchies)
Best Dance Club
Best Live Music Club
Best Bartender
Best Margarita
Best Frozen Daquiri
Best Tequila Sunrise
Best Pins Colada
BEST OF THE REST
Best Local T V News
Best Newscaster
Best Sportscaster
Best Weatherman
Best Local Radio Station
Best D.J.
Best Movie Theatre
Best Video Shop
Best Liquor Store
Best Best Place to Meet for a Romantic Rendezvous
Best Place To Take an Out of Town Guest
Entry deadline: Tuesday, Oct. 22
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University of Texas at El Paso. The Prospector (El Paso, Tex.), Vol. 71, No. 13, Ed. 1 Tuesday, October 15, 1985, newspaper, October 15, 1985; El Paso, Texas. (https://texashistory.unt.edu/ark:/67531/metapth1626047/m1/3/?q=music: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting University of Texas at El Paso.