scholarly journals Seventy years since the invention of the averaging technique in Neurophysiology: Tribute to George Duncan Dawson

2021 ◽  
Author(s):  
Otto Jesus Hernández Fustes ◽  
Cláudia Suemi Kamoi Kay ◽  
Paulo José Lorenzoni ◽  
Renata Dal-Prá Ducci ◽  
Lineu Cesar Werneck ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Clinical Application ◽  
Clinical Neurophysiology ◽  
New Technique ◽  
Averaging Technique

ABSTRACT In 1951, the physiologist George Duncan Dawson presented his work with the averaging of the signal in the evoked potentials (EPs), opening a new stage in the development of clinical neurophysiology. The authors present aspects of Professor Dawson’s biography and a review of his work on the EPs and, mainly, the article reveals the new technique in detail that would allow the growth of the clinical application of the visual, auditory, and somatosensory EPs.

Application of Clinical Neurophysiology

2016 ◽  
pp. 502-536
Author(s):  
Devon I. Rubin ◽  
Jasper R. Daube
Keyword(s):  
Clinical Application ◽  
Clinical Evaluation ◽  
Nerve Conduction ◽  
Neurological Disease ◽  
Clinical Neurophysiology ◽  
Clinical Findings ◽  
Nerve Conduction Studies ◽  
Specific Diagnosis ◽  
Neurophysiological Assessment ◽  
Selection Of

Clinical neurophysiology testing primarily assesses and characterizes neurological disease. Selection of appropriate studies for the problem of an individual patient requires a careful clinical evaluation to determine possible causes of the patient’s symptoms. The approach to testing can be assisted by deciding which structures are likely to be involved. For example, motor and sensory symptoms are best assessed using the different methods of motor and sensory NCS. Deciding which neurophysiological measures to apply in peripheral disorders is sometimes assisted by applying guideline protocols based on the patient’s clinical findings and what is found during testing. Although a clinical neurophysiological assessment rarely provides evidence for a specific diagnosis, it can provide valuable information about the severity, progression, and prognosis of the disease. This chapter reviews the clinical application of neurophysiological tests, particularly nerve conduction studies and needle EMG, in the assessment of patients with a variety of neuromuscular complaints.

METHODS OF THE QUALITATIVE THEORY FOR THE HINDMARSH–ROSE MODEL: A CASE STUDY – A TUTORIAL

2008 ◽  
Vol 18 (08) ◽  
pp. 2141-2168 ◽  
Author(s):  
ANDREY SHILNIKOV ◽  
MARINA KOLOMIETS
Keyword(s):  
Periodic Orbits ◽  
Slow Motion ◽  
Qualitative Theory ◽  
New Technique ◽  
Modified Model ◽  
Averaging Technique ◽  
Return Mapping ◽  
Homoclinic Bifurcations ◽  
A New Technique

Homoclinic bifurcations of both equilibria and periodic orbits are argued to be critical for understanding the dynamics of the Hindmarsh–Rose model in particular, as well as of some square-wave bursting models of neurons of the Hodgkin–Huxley type. They explain very well various transitions between the tonic spiking and bursting oscillations in the model. We present the approach that allows for constructing Poincaré return mapping via the averaging technique. We show that a modified model can exhibit the blue sky bifurcation, as well as, a bistability of the coexisting tonic spiking and bursting activities. A new technique for localizing a slow motion manifold and periodic orbits on it is also presented.

Palatal motor evoked potentials: Description of a new technique

2014 ◽  
Vol 125 (5) ◽  
pp. 1067-1069 ◽  
Author(s):  
Rechdi Ahdab ◽  
Samar S. Ayache ◽  
Wassim H. Farhat ◽  
Philippe Kerschen ◽  
Jean-Pascal Lefaucheur
Keyword(s):  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
New Technique ◽  
A New Technique
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