Visual evoked potentials (VEP)
Visual evoked potentials are performed for visual impairments. A checkerboard pattern is generated on a screen, which leads to a stimulation of the optic nerves. The derivation of the resulting potentials is carried out by means of a fine needle electrode on the scalp, the examination takes about 10 – 15 minutes.
Acoustically evoked potentials (AEP)
An AEP is performed in cases of hearing disorders, dizziness and suspected inflammatory diseases of the nervous system. Acoustic click stimuli are presented via headphones. By means of conduction via an electrode from the scalp and behind the ear, the nerve tracts of the brain or the auditory nerves can be examined. The examination takes about 15 minutes.
Somatosensory evoked potentials (SSEP)
In the case of unexplained sensory symptoms (sensory disturbances and suspected inflammatory diseases of the nervous system), an SSEP is performed. In this process, nerve fibres are stimulated by weak, non-invasive current pulses on the arms or legs. The transmitted potentials are registered by means of adhesive electrodes. The examination takes about 10 – 15 minutes.