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Visual Evoked Potentials 01

Topic: Physiology

Created on Wednesday, October 17 2007 by jdmiles

Last modified on Wednesday, October 17 2007.

Which of the following statements regarding visual evoked potentials (VEPs) are true?

 
        A) VEPs are helpful in detecting retrochiasmatic lesions
 
        B) P100 arises from the corpus striatum
 
        C) Refractive errors can affect the amplitude but not the latency of VEPs
 
        D) P100 arises from the striate cortex
 
        E) P10 is the most useful and reproducible wave
 

 


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This question was created on October 17, 2007 by jdmiles.
This question was last modified on October 17, 2007.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) VEPs are helpful in detecting retrochiasmatic lesions

This answer is incorrect.


VEPS are helpful in detecting anterochiasmatic lesions, but are of limited usefulness in identifying retrochiasmatic lesions.  (See References)

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B) P100 arises from the corpus striatum

This answer is incorrect.


P100 arises from the striate cortex.  (See References)

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C) Refractive errors can affect the amplitude but not the latency of VEPs

This answer is incorrect.


Refractive erros can affect both the latency and amplitude of VEPs.

  (See References)

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D) P100 arises from the striate cortex

This answer is correct.


P100 arises from the striate cortex.  (See References)

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E) P10 is the most useful and reproducible wave

This answer is incorrect.


P100 is the most useful and reproducible of the VEP waveforms.  (See References)

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References:

1. Zaidat, O.O., and Lerner, A.J. (2002). The Little Black Book of Neurology, 4th Edition. Mosby, St. Louis (ISBN:0323014151)Advertising:
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physiology
Visual Evoked Potentials 01
Question ID: 101707066
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 10/17/2007
Modified: 10/17/2007
Estimated Permutations: 1092000

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