Visual Evoked Potentials 01

Topic: Physiology

Created on Wednesday, October 17 2007 by jdmiles

Last modified on Wednesday, October 17 2007.

 
        A) N50 is the most useful and reproducible wave
 
        B) Refractive errors do not affect the VEP in any significant way
 
        C) VEPs are obtained by having the subject observe a visual stimulus (such as a checkerboard pattern) while recording from the retina
 
        D) P10 is the most useful and reproducible wave
 
        E) P100 arises from the striate cortex
 

 

	= Go back to the top of the page.
	= Reload a different version of this question ().
	= Load a random question from the database.
	= Use this question as a template to create a totally NEW question.
	= Enter detailed rating for this question!
	= How users like you have rated this question.

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

---

A) N50 is the most useful and reproducible wave

This answer is incorrect.

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

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

B) Refractive errors do not affect the VEP in any significant way

This answer is incorrect.

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

  (See References)

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

C) VEPs are obtained by having the subject observe a visual stimulus (such as a checkerboard pattern) while recording from the retina

This answer is incorrect.

VEPs are obtained by recording from scalp electrodes placed over the occipital cortex, while having the subject observe visual stimuli such as a varying black and white checkerboard pattern.  (See References)

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

D) 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)

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

E) P100 arises from the striate cortex

This answer is correct.

P100 arises from the striate cortex.  (See References)

Please log in if you want to rate questions.

 

 

 

 

References:

1. Zaidat, O.O., and Lerner, A.J. (2002). The Little Black Book of Neurology, 4th Edition. Mosby, St. Louis (ISBN:0323014151)

Advertising:

Please log in if you want to rate questions.

 

FrontalCortex.com -- Neurology Review Questions -- Neurology Boards -- Board Review -- Residency Inservice Training Exam -- RITE Exam Review
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