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12) One of the effects of lead poisoning is an inflammation

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Senior Manager
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12) One of the effects of lead poisoning is an inflammation [#permalink] New post 28 Jan 2012, 09:02
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  5% (low)

Question Stats:

71% (02:23) correct 29% (01:36) wrong based on 14 sessions
12) One of the effects of lead poisoning is an
inflammation of the optic nerve, which causes those
who have it to see bright haloes around light sources.
In order to produce the striking yellow effects in his
"Sunflowers" paintings, Van Gogh used Naples
yellow, a pigment containing lead. Since in his later
paintings, Van Gogh painted bright haloes around
the stars and sun, it is likely that he was suffering
from lead poisoning caused by ingesting the
pigments he used.
Which one of the following is an assumption on
which the argument relies?
(a) In Van Gogh's later paintings he painted some
things as he saw them.
(b) Van Gogh continued to use paints containing
lead after having painted the "Sunflowers"
paintings.
(c) Van Gogh did not have symptoms of lead
poisoning aside from seeing bright haloes
around light sources.
(d)The paints Van Gogh used in the "Sunflowers"
paintings had no toxic ingredients other than
lead.
(e) The effects of Naples yellow could not have
been achieved using other pigments.
[Reveal] Spoiler: OA

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Re: Lead poisoning --Assumption Question [#permalink] New post 28 Jan 2012, 09:46
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Re: Lead poisoning --Assumption Question [#permalink] New post 28 Jan 2012, 21:22
Expert's post
Interesting question!

Let's imagine, for a moment, that we are Van Gogh. Let's also imagine that we are afflicted with lead poisoning and, as a result, perceive haloes around light sources (as the argument asserts).
We look up at the sky at night and the stars have haloes around them.

In such an instance, we are assuming that we painted what we literally saw. And so the argument hinges on this fact - that Van Gogh painted what he perceived.

If Van Gogh did not have lead poisoning, and thus did not perceive any halos around the stars, then he consciously added haloes to the painting has an effect. Were this the case, the argument falls apart - Van Gogh didn't have lead poisoning, he simply decide to paint haloes.
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Re: Lead poisoning --Assumption Question   [#permalink] 28 Jan 2012, 21:22
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12) One of the effects of lead poisoning is an inflammation

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