Tests performed by neurologists are Neurological Diagnostic Tests, Brainstem Auditory Evoked Response (BAER) Test, Carotid Duplex (Carotid Ultrasound), Cerebral Angiography (Also Called Vertebral Angiogram or Carotid Angiogram), Computed Tomography (CT or CAT scan), Discography, Doppler Ultrasound, Electroencephalogram (EEG), Electromyography (EMG), Intrathecal Contrast Enhanced CAT Scan, Lumbar Puncture (Spinal Tap), Magnetic Resonance Imaging (MRI), Magnetic Resonance Angiogram (MRA)/Magnetic Resonance Venogram (MRV), Myelogram, Nerve Conduction Study, Oculoplethysmography (OPG), Positron Emission Tomography (PET) Scan, Selective Nerve Root Block, Single Photon Emission Computed Tomography (SPECT) Scan, and Somatosensory Evoked Response (SSER) Test.