▶ Your Answer :
The reading passage contents that there are
several reasons why the brain scan lie detector it more accurate than the
conventional one. On the other hand, the speaker brings up several points that
contradicts this argument.
First, the speaker argues that there are
great chance of subject to holding the information if wanted, and not get detected.
This is because the brain part which get activated when the subject does not tell is the same parts as the one with telling lie. After all, people always make decisions
and choose what to share because they do not want to talk about embarrass and
sensitive moments. This counters the reading passage’s assertion that when a
brain scan lie detector is used, tur statements are not misidentified as lies.
Second, the lecturer explains that it is
plainly false that results of the brain scan lie detector are objective. This
is supported by the fact that every people’s brain is slightly functioning in a different
way, making it almost impossible to make any criteria that explain all the
possible samples. This means the need for experts to interpret the results of the brain scan, which concludes the fact that the possibility of error will rose.
This refutes the reading passage’s assertion that results of the brain scan lie
detectors are interpreted in an objective manner.
The final point made by the speaker is that
it is actually easier to fool the inspector than the conventional polygraphs. To
be specific, there is two ways to fool. One is to do complex mental processes such as solving math problems while being scanned. This overly activates the brain
activation, making it harder to detect the truth. Another one is to tell the false
story which is already been told to the subject. This confuses the neural activations
in the brain, making it to look like the subject is telling the truth. This counters
the reading passage’s argument that a brain scan lie detector makes difficult for the subject to intentionally trick the test by telling lies. |