Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

VEP interpretation 1

Visual evoked potential interpretation 1

QuestionAnswer
Binocular absence of VEPs Technical problems; ocular abnormalities; lack of fixation or acuity; severe bilateral optic nerve defects
Monocular absence of VEPs Optic neuropathy, ocular diosrders
Prolonged VEP latency optic nerve lesion
Increased VEP latency Optic nerve lesion
Increased interocular VEP latency difference Optic nerve lesion
Monocular decreased VEP amplitude Ocular lesion
Binocular decreased VEP amplitude Ocular lesions or chiasmal lesion, any bilateral prechiasmal or chiasmal lesion; low amplitude with normal latencies may be normal
Abnormal bilateral temporal VEPs lesion at or near the optic chiasm
Abnormal corresponding field VEPS Lesion of the posterior visual pathways, the optic radiations or visual cortex
Abnormal monocular hemifield VEP Incomplete optic nerve lesion
Pattern reversal VEP abnormalities with neurologic lesions in the ocular region Absence of VEP, low amplitude VEP
Pattern reversal VEP abnormalities with neurologic lesions in the optic nerve region Absence of VEP, increased full field VEP latency, increased interside VEP latency difference
Pattern reversal VEP abnormalities with neurologic lesions in the optic chiasm region Abnormal bilateral full field VEP, bilateral temporal half-field VEP
Pattern reversal VEP abnormalities with neurologic lesions in the optic tract Abnormal bilateral corresponding half-field VEP; full field VEP may be normal
Pattern reversal VEP abnormalities with neurologic lesions in the occipital cortex Abnormal bilateral corresponding half field VEP; full field VEP may be normal
Created by: schmittse