Explain please!

This topic has expert replies
User avatar
Master | Next Rank: 500 Posts
Posts: 269
Joined: Sun Apr 27, 2014 10:33 pm
Thanked: 8 times
Followed by:5 members

Explain please!

by prachi18oct » Fri Feb 13, 2015 5:26 pm
Astronauts who experience weightlessness frequently get motion sickness. They see their own motion relative to passing objects, but while the astronauts are weightless their inner ears indicate that their bodies are not moving. This astronauts' experience is best explained by the hypothesis that conflicting information received by the brain about the body's motion causes motion sickness.

Which one of the following, if true, provides the strongest additional support for the hypothesis above?

A) During rough voyages ship passengers in cabins providing a view of the water are less likely to get motion sickness than are passengers in cabins providing no view.

B) Many people who are experienced airplane passengers occasionally get motion sickness.

C) Some automobile passengers whose inner ears indicate that they are moving and who have a clear view of the objects they are passing get motion sickness.

D) People who have aisle seats in trains or airplanes are as likely to get motion sickness as are people who have window seats.

E) Some astronauts do not get motion sickness even after being in orbit for several days.


The conclusion of the argument is that the conflicting information received by the brain about the body's motion causes motion sickness. Now to support this or to stregthen this , I have to cite another example where the person recieves a conflicting information from brain.

How could A be correct here ?

A) During rough voyages ship passengers in cabins providing a view of the water are less likely to get motion sickness than are passengers in cabins providing no view.

I understand it as the passenger who have the view will be able to see the rough waves and hence feel the motion while their inner ears would tell them that their bodies are not moving. So they should be more likely to have motion sickness.

B) Does not explain
c) no conflicting info so doesnt strengthens the hypothesis.
d) weakens the hypothesis
e) does not explain

Please explain .
Source: — Critical Reasoning |

User avatar
Legendary Member
Posts: 2135
Joined: Mon Feb 03, 2014 9:26 am
Location: https://martymurraycoaching.com/
Thanked: 955 times
Followed by:140 members
GMAT Score:800

by MartyMurray » Sat Feb 14, 2015 1:26 pm
You reversed it.

A describes two situations.

In one situation passengers feel movement, but they do not see outside their cabins. So what they see does not appear to be moving. These passengers have conflicting information coming in.

In the other situation, passengers are moving and they have views to the outside, which enable them to see their motion relative to the water. So their eyes are getting information that indicates that they are moving and their inner ears are also getting information that indicates movement. So the two forms of information agree.

Those in the first group, who have the conflicting information, experience more motion sickness than do those in the second group.

This serves to confirm the hypothesis that conflicting information received by the brain causes motion sickness.
Marty Murray
Perfect Scoring Tutor With Over a Decade of Experience
MartyMurrayCoaching.com
Contact me at [email protected] for a free consultation.