Poor performance in Stroop Test
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There were researches done on poor performance on Stroop Test for ADHD
etc. Some research points of different brain circuit (cingulated etc).
This stroop test tries to emphasize the inhibitory response when
naming a color. I think that stroop test is rather tests excitatory
response. For example people with ADHD has so much excitatory
responses that the inhibiting response (to name the incongruent
colors) just fails. For example, ADHD patients might fail tongue
twisters as well.
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differences in reading skill? For example if stroop test is taken by a=0A=
twin one with good reading skill and other don=92t and there is a large=0A=
difference in interference (time and error rate) then it can be=0A=
conclusively said that stroop test is related to language skill only.=0A=
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The stroop test may have been used wrong. People with frontal lobe
injury and normal subjects take the same time measure and make almost
no error while taking the test. Most of the research focuses on time
and error rate. Insteadmaybe we should focus on the interference of
noncongruent words. That was the idea behind the original test that
people will have difficulty while saying the color with mismatched
word! Normal controls would struggle due to interference (may or may
not make mistake) unlike frontal lobe patients when they will have
less interference. Therefore frontal lobe patients may continue with
the stroop test indifferent of the mistakes. If they make no mistakes
then they get perfect score. However it is when they make mistakes
they will fail to display any effect. Apathy may be associated it.
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especially for incongruent task. It seems there are two variations of
the test. One test has multiple words on various columns and lines.
The other is where individual words are flashed on a computer screen.
I am trying to find out the error rate and time especially with the
stroop test with columns/lines. On some of the research paper I find
error rate of 2-3%. This is very low in my opinion. If a subject has
to read 100 words (incongruent) and make only 1-2 errors then it is
very low. I would expect at least 10% error for controls.