Source: Official Guide Revised GRE 1st Ed. Part 4; Set 4; #9
According to the passage, as the process
Shradha Jaiswal
In the line 10 or 11
It's written that" It ranges from a passive,free floating awareness to a highly focused ,active fixation.The range through these states is mediated by arousal system ,a network of tract converging from sensory systems to integrating centres in the brain stem "
So why does the option E doesn't work?
Aug 19, 2018 • Comment
David Recine
E doesn't work because this is an EXCEPT question. So you want something that does NOT happen. But those lines talk of a broad range of states that are ultimately mediated by the brain stem, due to the phenomenon of arousal. So that makes E true rather than false.
Aug 21, 2018 • Reply
Rajagopal Lakshman
Hello, could you please explain why choice E is incorrect? The passage states, in lines 6-10, that the kind of intelligence favored is attention and the attention ranges from a passive, free flowing awareness to a highly focused active fixation. The range through these states is mediated by systems in the brain stem.
Does this not mean an increase in the range mediated by the brain stem?
Jun 12, 2018 • Comment
Sam Kinsman
Hi Rajagopal,
You are right that E is a true answer: it backed up by the passage.
However, E doesn't answer the question. The question asks us for things that happen as the process of arousal in an organism continues. And E (an expansion of the range of states) does not occur as the process of arousal takes place.
The passage is saying that there is a range of types of attention ("states") in animals. But it does not say that the mediation of these states (by the brain stem) happens as the process of arousal takes place.
I hope that helps! :D
Best,
Sam
Jun 16, 2018 • Reply
Nitish
Hi, the passage clearly states in lines 10-11, "The range through these states is mediated by the arousal system.." so why is option E still incorrect?
Jul 9, 2019 • Reply
Adam
Hey there!
According to the passage, this range of states is mediated by the arousal system all the time, not just when aroused. Second, the entire range of states is always being mediated, from passive to active. There are no more additional states to be mediated. Third, and most importantly, the text says that the "arousal system" mediates this range. The brain stem is part of the arousal system, but it is not all of it. So we can't say anything about what the brain stem in specific is doing.
Hope that helps!
Jul 21, 2019 • Reply
BAlaji
I dont understand 'increase in selectivity' what in the Option E refers to 'D an increase in selectivity with respect to stimuli' - Could you please explain?
Nov 11, 2016 • Comment
Adam
"An increase in selectivity with respect to stimuli" means that the organism would become more selective about which stimuli it responds to. In other words, rather than responding to all stimuli, it would only respond to certain (select) stimuli.
Nov 15, 2016 • Reply
Madhu Balla
In line 16, author talks about "Arousal is at first general, with a flooding of impulses in the brain stem; then gradually the activation is channeled." So how is E incorrect.
Sep 13, 2016 • Comment
David Recine
In line 16, there are two keywords that (E) is actually incorrect. These keywords are "general" and "channeled." "General" refers to a wider variety of impulses. "Channeled" is the opposite of general here.
If the activation in the brain stem starts out as genera" and then becomes channeled, the brain stem goes from handling a wide variety of impulses to handling a much smaller group of impulses. So the states mediated by the brain stem-- the types of impulses-- shrink in range, rather than expanding. So line 16 actually says that the OPPOSITE of E is true.
Sep 13, 2016 • Reply
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Official GRE Material
Official Guide Revised GRE 1st Ed.
Official Guide Revised GRE 2nd Ed.
Set 4. Reading Comprehension: Medium
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