Evoked potentials

In this examination, we check whether the nerves transmit signals normally.

• BERA (Brainstem Evoked Response Audiometry): test of the auditory pathways, which are closely linked to the pathways of the balance organ
• MEP (Motor Evoked Potential): test of motor pathways
• SSEP (Somato Sensory Evoked Potential): test of sensory pathways
• VEP (Visually Evoked Potential): test of visual pathways

A staff member of the neurology department will place electrodes on your head, arm and/or leg. They will use a kind of gel and sometimes adhesive tape are used for this.

Then you receive repeated stimuli:

• BERA: sound via headphones or earplugs
• MEP: a special coil is placed above your head, providing a magnetic pulse
• SSEP: electrical shocks on the pulse or ankle
• VEP: looking at a checkerboard pattern on a screen

• BERA: be sure to say if you have a hearing aid
• VEP : do not remove your glasses or contact lenses: you must be able to see the stimulus on the screen clearly.

Latest publication date: 16/05/2024
Supervising author: Dr Aers Isabelle