The Masterclass by IFCN was created in response to a call from IFCN member societies for more high quality, complimentary, online educational content. The series will provide a new presentation every month from top clinical neurophysiologists around the world, and each will include time for discussion with the lecturer following the presentation.

Providing the best in contemporary clinical neurophysiology education delivered in the most optimal format is the primary educational goal of the IFCN. As such, Masterclass by IFCN will be available complimentary to all registrants.

Professor Jun Kimura

Masterclass by IFCN: The Clinical Use of F-Wave Measures

Join us for the next Masterclass by IFCN presentation on Saturday, November 13, 2021 at 8:00 AM EST (2:00 PM CEST)

Professor Jun Kimura will present The Clinical Use of F-Wave Measures

F wave results from the backfiring of antidromically activated anterior horn cells. Its latency represents motor conduction along the entire peripheral axons including the most proximal segment. Clinical assessment calls for determination of a surface distance to adjust for differing nerve lengths or the patient’s height with the use of a nomogram. Studies of F wave provide a most sensitive measure of abnormality for a variety of neuropathies, but not for a focal nerve lesion such as radiculopathies. F wave also serves as a means of testing the excitability of the anterior horn cells, showing a progressive suppression after a few hours of volitional muscle relaxation. Thus, its absence, usually taken as a sign of conduction block of the peripheral motor axons, may also result from suppression of spinal motor neurons.

Register now

The EEG of Encephalopathy

P. Kaplan, Director of Epilepsy and EEG, Johns Hopkins Bayview Medical Center, Johns Hopkins University School of Medicine

Single-Fiber EMG: Old and New Aspects

E. Stålberg, Emeritus Professor, Department of Clinical Neurophysiology, University of Uppsala
D. Sanders, Professor, Department of Neurology, Duke University

Neurophysiology of the Pelvic Floor: Its Contribution to the Diagnosis and Management of Incontinent Patients

A.  Tello, Director Clinical Neurophysiology Laboratory, Hospital Español

ICU EEG Terminology Updates

L. Hirsch, Professor of Neurology, Yale University School of Medicine

For access to the full version of the Standardized Critical Care EEG Terminology including reference charts, EEG examples and training module, visit the guidelines page of the ACNS website


Neurophysiology of Acquisition and Loss of Skilled Movements in Musicians

E. Altenmüller, Director of the Institute of Music Physiology and Musicians Medicine and the Hanover University of Music and Drama

The Electrodiagnosis of Guillain–Barré Syndrome

N. Shahrizaila, Senior Consultant Neurologist, University Malaya Medical Centre

TMS Measures of Corticospinal and Motor Cortical Excitability

U. Ziemann, Department of Neurology & Stroke, and Hertie-Institute for Clinical Brain Research, Eberhard-Karls University Tübingen

Evaluation of Tremor

M. Hallett, National Institute of Neurological Disorders and Stroke, NIH

Neuromuscular Ultrasound in Neuropathies: A New, Large and Amazing Field

A. Grimm, Department of Neurology and Epileptology, Tübingen University Hospital

Critical Illness Myopathy and Polyneuropathy

H. Tankisi, Department of Clinical Neurophysiology, Aarhus University Hospital

Action Potential Generation and Intermittent Conduction Block in Myelinated Axons

D. Burke, Faculty of Medicine and Health, The University of Sydney

Intraoperative Neurophysiologic Monitoring

M. Nuwer, Department of Neurology, UCLA

Clinical Visual Evoked Potentials

A. Husain, Department of Neurolology, Duke University Medical Center

Basic Motor Control: How the Brain Makes Movement

M. Hallett, Human Motor Control Section, NINDS, NIH

Clapham’s Sign; Stretch Sensitive Facial Muscle Contraction after Complete Denervation

L. Clapham, D. Allen, R. Arunachalam, and J. Cole
Wessex Neurological Centre, Southampton and Poole Hospital, Universities of Southampton and Bournemouth