Memory- from Kaplan

This topic has expert replies
User avatar
Legendary Member
Posts: 575
Joined: Tue Nov 04, 2008 2:58 am
Location: India
Thanked: 18 times
Followed by:4 members
GMAT Score:710

Memory- from Kaplan

by rahulg83 » Sun Apr 12, 2009 6:52 pm
Here is the first para of one of the passages i was trying yesterday:

One of the first attempts to peer into the living human was carried out by a neurosergeon named Wilder Penfield in the 1950s. Penfield opened the skulls of concious epileptic patients under local anesthesia, and induced a mild electric current into their brains in an attempt to pinpoint the source of seizure activity and then remove the piece of tissue. What he found was even more remarkable than what he initially set out to do. By simulating different points on the lower part of the brain (the temporal lobes), he elicited distinct and vivid memories in his patients. These memories were more precise than usual memories, and incorporated different modalities such as visual and auditory sense impressions. Penfield's patients reported different types of memories. When same location in the temporal lobe eas simulated again the same memory reappeared. Could it be that a physical map of memory exists in our brain?


Question: All of the following are mentioned in paragraph 1 as part of surgical procedure Penfield performed on his patients EXCEPT

A) Penfield stimulated different points in his patients' lobes.
B) Penfield's epileptic patients were not totally anesthized during surgery.
C) The patients' brains were given small electrical shock during surgery.
D) Penfield removed the pieces of tissue responsible for inducing seizures in his patients
E) The patients' skulls were wide open throughout the surgery

It's easy to eliminate A, B and C here. and also D. SO obvious answer seems to be D. But actual answer given is E.. :?
Source: — Reading Comprehension |

Master | Next Rank: 500 Posts
Posts: 145
Joined: Mon Feb 16, 2009 8:41 am
Thanked: 2 times
Followed by:2 members

by anshulseth » Sun Apr 12, 2009 10:55 pm
I think E is correct.
Follow the process of elimination.

A. Stated in passage: "simulating different points on the lower part of the brain (the temporal lobes),"
B. Passage says " local anesthesia"
C. Passage says : " induced a mild electric current into their brains"
D. Passage says : "to pinpoint the source of seizure activity and then remove the piece of tissue."
E. Passage says" Penfield opened the skulls".
The word "wide" is a problem.

IMO, this is not a good Q though.
Asset

User avatar
Legendary Member
Posts: 575
Joined: Tue Nov 04, 2008 2:58 am
Location: India
Thanked: 18 times
Followed by:4 members
GMAT Score:710

Re: Memory- from Kaplan

by rahulg83 » Sun Apr 12, 2009 11:35 pm
rahulg83 wrote:Here is the first para of one of the passages i was trying yesterday:

One of the first attempts to peer into the living human was carried out by a neurosergeon named Wilder Penfield in the 1950s. Penfield opened the skulls of concious epileptic patients under local anesthesia, and induced a mild electric current into their brains in an attempt to pinpoint the source of seizure activity and then remove the piece of tissue. What he found was even more remarkable than what he initially set out to do. By simulating different points on the lower part of the brain (the temporal lobes), he elicited distinct and vivid memories in his patients. These memories were more precise than usual memories, and incorporated different modalities such as visual and auditory sense impressions. Penfield's patients reported different types of memories. When same location in the temporal lobe eas simulated again the same memory reappeared. Could it be that a physical map of memory exists in our brain?


Question: All of the following are mentioned in paragraph 1 as part of surgical procedure Penfield performed on his patients EXCEPT

A) Penfield stimulated different points in his patients' lobes.
B) Penfield's epileptic patients were not totally anesthized during surgery.
C) The patients' brains were given small electrical shock during surgery.
D) Penfield removed the pieces of tissue responsible for inducing seizures in his patients
E) The patients' skulls were wide open throughout the surgery

It's easy to eliminate A, B and C here. and also D. SO obvious answer seems to be D. But actual answer given is E.. :?
Well what they have reasoned for D to be wrong is that Penfield 'attempted' to remove the pieces of tissue and whatever, but it is not known whether he was successful or not. That leaves E as the only option. But E also is not stated explicitly anywhere in passage. It is not known that patients skulls were open 'throughout' the surgery although it is quite obvious. Also as you mentioned, word 'wide' is a prblem..guess it is typical bad written question :evil:

Legendary Member
Posts: 876
Joined: Thu Apr 10, 2008 8:14 am
Thanked: 13 times

by ketkoag » Mon Apr 20, 2009 12:56 pm
IMO D is the best answer.
Read induced a mild electric current into their brains in an attempt to pinpoint the source of seizure activity and then remove the piece of tissue. and compare it with the answer choice D. does it mean same as mentioned in D?? i think NO.
E is stated in the passage Penfield opened the skulls of concious epileptic patients

hope this helps!!