▶ Your Answer :
The reading passage contends that a brain
scan lie detector is more precise than the conventional polygraphs. On the
other hand, the lecturer brings up several points that contradict this
statement.
First of all, the speaker argues that the
new brain scan lie detector can be thought to be dishonest things. This is
because when people hide information, the same part of brain is used as lying.
Also, if people just avoid specific answers during the test, they can be considered
as being dishonest. This casts doubt on the reading passage’s claim that the
new polygraphs do not make mistakes by using the certain portion of brain
unlike the conventional polygraphs which relied on people’s anxiety level.
In addition, the speaker insists that the
new polygraphs are not objective. Since each person’s brain has different functions,
these new devices cannot be applied to everyone. Thus, the experts are needed
to implement the subjective measures. This counters the reading passage’s
assertion that this new detector can provide one of the best objective methods,
by producing concrete images of the brain without any specialists.
Finally, the professor maintains that it
would be easier to fool the new detector. Performing the complex mental
progress causes people’s total brain activities to increase that masks lying.
Moreover, when people repeatedly practice to tell a lie, the neural activity
might show that it is true. This refutes the reading passage’s explanation that
a brain scan lie detector makes it more difficult to mislead the test since it
does not impact the person’s brain activity compared to the traditional
polygraphs.
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