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The use of lie detectors is based on the assumption that lying produce

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Joined: 11 Aug 2018
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The use of lie detectors is based on the assumption that lying produce  [#permalink]

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21 Aug 2018, 07:53
The sentence says that the use of lie detectors is based on some assumption. The assumption is that lying produces emotional reactions in an individual and that these emotional reactions, in turn, produce unconscious physiological responses.

The important aspect here is understanding the meaning of the sentence. Some assume that in “that, in turn, create..”, ‘that’ refers to individual. The cause of this wrong assumption is that you are not paying attention to the meaning of the sentence. Once you pay attention to the meaning of the sentence, you’ll understand that an individual cannot logically create physiological responses. This understanding will raise a question: “Then, what is creating these responses?”. The answer is “emotional reactions”.

Now, the question is: “Can ‘that’ refer to emotional reactions?”. The answer is Yes. Noun modifiers can jump over other essential noun modifiers and, in some cases, over other verb modifiers as well. So, ‘that’ can jump over “in an individual”, a prepositional modifier modifying the verb ‘produces’, to modify ‘emotional reactions’.

Once you understand that ‘that’ refers to ‘emotional reactions’ and not ‘individual’, you’ll realize that we need a plural verb ‘create’.

The given sentence, thus, has no logical or grammar errors.
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Re: The use of lie detectors is based on the assumption that lying produce  [#permalink]

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25 Aug 2018, 13:58
Blackishmamba wrote:
How come "that" modify a plural noun reactions? Isn't the use of "those" appropriate here?

Sorry, I'm late to the party here!

As others have mentioned, when "that" is used as a modifier, it can refer to either singular or plural nouns. This same discussion came up on this thread.

I think the confusion comes from the fact that the word "that" can also behave as a (non-modifying) pronoun. If "that" simply operates as a pronoun, it is always singular; "those" would be the plural version. More on the GMAT's many uses of "that" in this article.

I hope this helps!
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Re: The use of lie detectors is based on the assumption that lying produce &nbs [#permalink] 25 Aug 2018, 13:58

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