Objective recordings of neural responses to controlled sensory, visual and auditory stimulation.
Evoked-potential methods record time-locked neural activity following a defined stimulus. Repeated trials and appropriate signal averaging help distinguish small evoked responses from background activity and artifact.
SSEP, VEP and BAER/ABR differ in their stimulation, recording montage, neural pathways and waveform interpretation. Response latency, morphology, reproducibility and—in appropriate contexts—amplitude provide complementary physiologic information, never a standalone diagnosis.
Somatosensory evoked potentials (SSEPs) record the nervous system's electrical response after peripheral sensory-nerve stimulation. The study samples peripheral nerves, spinal pathways, subcortical structures, and sensory cortex; it is physiologic data, not a diagnosis by itself.
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Visual evoked potentials (VEPs) are noninvasive recordings of brain responses to visual stimulation. They provide time-locked information about visual pathway function for qualified clinical interpretation; the recording itself is not a diagnosis.
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ABR, also called BAER, is a noninvasive evoked-potential study that records synchronized neural activity generated by sound. It provides objective information about auditory pathway function when behavioral responses are limited, while remaining one component of clinical assessment.
Explore the studyRecorded physiologic data support broader clinical evaluation. Licensed medical interpretation, diagnosis and treatment are separate clinical responsibilities. Specific service availability, professional qualifications and arrangements must be verified.