1. The recordings demonstrate a widespread far-field subcortical P31 of low amplitude
followed by the higher amplitude and more localized near-field cortical P37 and N37 …

OBJECTIVE:: To compare P37 derivation optimization to Cz′–FPz. METHODS: After
induction in 120 patients, monitoring derivations optimized by mapping FPz, Cz, Cz′, Pz …

This investigation sought the optimal (highest amplitude) derivation for monitoring the
posterior tibial P37 for each side in each individual, and determined whether this may …

OBJECTIVE: To compare the intraoperative signal-to-noise ratio (SNR), reproducibility and
rapidity of popliteal fossa (PF), optimized P37, standard P37 and P31 potentials. METHODS …

Objective The somatosensory evoked potential (SEP) of the medianus nerve elicits a N20
component and a high-frequency oscillation (HFO,> 500 Hz). Here we investigate the …

P37 cortical peak latency registered on Ci′(lateral) is usually approximately 1 millisecond
shorter than Cz′(midline) in lower limb somatosensory evoked potential. At the present …

We evaluated vertex-parietal P37, N50, and contralateral N37 somatosensory evoked
potentials (SEPs) to posterior tibial nerve stimulation during weak (20 to 30%) and strong …

In patients with lesions around the central sulcus, cortical surface somatosensory evoked
potentials (SEPs) have been applied for the purpose of localization of the central sulcus …

Objective: To investigate the most reliable method to record the earliest cortical
somatosensory evoked potential (SEP) after tibial nerve stimulation. The …

To identify the origin of short latency somatosensory evoked potentials (SSEPs) to posterior
tibial nerve stimulation, direct recordings were made from the cervical cord, the ventricular …