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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) N100 is the most useful and reproducible wave
 
        B) P50 is the most useful and reproducible wave
 
        C) P100 arises from the visual association cortex
 
        D) When combined with an electroretinogram, VEPs can help differentiate retinal lesions from optic nerve lesions
 
        E) Refractive errors can affect the amplitude but not the latency of VEPs
 

 


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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) N100 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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B) P50 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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C) P100 arises from the visual association cortex

This answer is incorrect.


P100 arises from the striate cortex.  (See References)

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D) When combined with an electroretinogram, VEPs can help differentiate retinal lesions from optic nerve lesions

This answer is correct.


When combined with an electroretinogram, VEPs can help differentiate retinal lesions from optic nerve lesions.  (See References)

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E) 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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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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