▶ Your Answer :
In the reading passage, there is ample support
for the author’s claim that recent research argues that a brain scan detector, a
brand-new form of polygraph that measures neural activity, is more accurate
than the conventional polygraphs. However, the professor in the lecture gives
several reasons as a rebuttal to the author’s point.
To
begin with, the lecturer claims that the detector sometimes cannot notice
whether a person is honest or not. The reason is that, even a man who states
truth can be nervous when answering about embarrassing question. This opposes
the reading passage’s claim that because this new detector can find enhanced
activity in specific part of brain when a person lies, true statements are not
misidentified by a level of anxiety like a traditional detector.
On
top of that, the professor points out that it is plainly false that the results
from the machine are explained in an objective way. To be specific, there is no
criterion to all people. Therefore, the experts who explain in subject manner
are needed. This casts doubt on the reading passage’s claim that the results
are interpreted in objective manner because the new detector create genuine
feature of the specific parts of brain related to lying.
Finally,
the lecturer asserts that meditation or drugs can affect the result during a
new polygraph test. For example, when a person was solving a complex math
problem, brain activity raised. So the machine indicated the man was lying. Also,
when a man was talking about untrue story, the detector said that he is being
honest. This refutes the reading passage’s claim that unlike body, a brain is
not influenced by countermeasures during a brain scan polygraph test.
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