Article (Scientific journals)
Clinical neurophysiology of migraine with aura
Coppola, G.; Di Lorenzo, C.; Parisi, V. et al.
2019In Journal of Headache and Pain, 20 (1), p. 42
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Keywords :
Cortical excitability; Habituation; Interhemispheric asymmetry; Neuromodulation; Paradoxical responses; Slow rhythms; Review; Adult; Blinking; Electroencephalography; Evoked Potentials, Motor; Female; Humans; Male; Migraine with Aura; Synaptic Transmission; Transcranial Magnetic Stimulation
Abstract :
[en] Background: The purpose of this review is to provide a comprehensive overview of the findings of clinical electrophysiology studies aimed to investigate changes in information processing of migraine with aura patients. Main body: Abnormalities in alpha rhythm power and symmetry, the presence of slowing, and increased information flow in a wide range of frequency bands often characterize the spontaneous EEG activity of MA. Higher grand-average cortical response amplitudes, an increased interhemispheric response asymmetry, and lack of amplitude habituation were less consistently demonstrated in response to any kind of sensory stimulation in MA patients. Studies with single-pulse and repetitive transcranial magnetic stimulation (TMS) have reported abnormal cortical responsivity manifesting as greater motor evoked potential (MEP) amplitude, lower threshold for phosphenes production, and paradoxical effects in response to both depressing or enhancing repetitive TMS methodologies. Studies of the trigeminal system in MA are sparse and the few available showed lack of blink reflex habituation and abnormal findings on SFEMG reflecting subclinical, probably inherited, dysfunctions of neuromuscular transmission. The limited studies that were able to investigate patients during the aura revealed suppression of evoked potentials, desynchronization in extrastriate areas and in the temporal lobe, and large variations in direct current potentials with magnetoelectroencephalography. Contrary to what has been observed in the most common forms of migraine, patients with familial hemiplegic migraine show greater habituation in response to visual and trigeminal stimuli, as well as a higher motor threshold and a lower MEP amplitude than healthy subjects. Conclusion: Since most of the electrophysiological abnormalities mentioned above were more frequently present and had a greater amplitude in migraine with aura than in migraine without aura, neurophysiological techniques have been shown to be of great help in the search for the pathophysiological basis of migraine aura. © 2019 The Author(s).
Disciplines :
Neurology
Author, co-author :
Coppola, G.;  Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, Corso della Repubblica, Latina, 79-04100, Italy
Di Lorenzo, C.;  IRCCS - Don Gnocchi, Piazzale Morandi, Milan, 6-20121, Italy
Parisi, V.;  IRCCS - Fondazione Bietti, via livenza, Rome, 3-00198, Italy
Lisicki Martinez, Marco ;  Université de Liège - ULiège
Serrao, Mariano
Pierelli, F.;  Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, Corso della Repubblica, Latina, 79-04100, Italy, IRCCS - Neuromed, Via Atinense, Pozzilli (IS), 18-86077, Italy
Language :
English
Title :
Clinical neurophysiology of migraine with aura
Publication date :
2019
Journal title :
Journal of Headache and Pain
ISSN :
1129-2369
eISSN :
1129-2377
Publisher :
Springer, New York, United States - New York
Volume :
20
Issue :
1
Pages :
42
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 14 July 2021

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