Article (Scientific journals)
Induction of long-lasting changes of visual cortex excitability by five daily sessions of repetitive transcranial magnetic stimulation (rTMS) in healthy volunteers and migraine patients
Fumal, Arnaud; Coppola, G.; Bohotin, V. et al.
2006In Cephalalgia, 26 (2), p. 143-149
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Keywords :
habituation; healthy volunteers; migraine; preventative therapy; repetitive transcranial magnetic stimulation; visual evoked potentials
Abstract :
[en] We have shown that in healthy volunteers (HV) one session of 1 Hz repetitive transcranial magnetic stimulation (rTMS) over the visual cortex induces dishabituation of visual evoked potentials (VEPs) on average for 30 min, while in migraineurs one session of 10 Hz rTMS replaces the abnormal VEP potentiation by a normal habituation for 9 min. In the present study, we investigated whether repeated rTMS sessions (1 Hz in eight HV; 10 Hz in eight migraineurs) on 5 consecutive days can modify VEPs for longer periods. In all eight HV, the 1 Hz rTMS-induced dishabituation increased in duration over consecutive sessions and persisted between several hours (n = 4) and several weeks (n = 4) after the fifth session. In six out eight migraineurs, the normalization of VEP habituation by 10 Hz rTMS lasted longer after each daily stimulation but did not exceed several hours after the last session, except in two patients, where it persisted for 2 days and 1 week. Daily rTMS can thus induce long-lasting changes in cortical excitability and VEP habituation pattern. Whether this effect may be useful in preventative migraine therapy remains to be determined.
Disciplines :
Neurology
Neurosciences & behavior
Author, co-author :
Fumal, Arnaud ;  Centre Hospitalier Universitaire de Liège - CHU > Neurologie CHR
Coppola, G.
Bohotin, V.
Gérardy, Pierre-Yves ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Neuro-anatomie
Seidel, Laurence  ;  Université de Liège - ULiège > Département des sciences de la santé publique > Informatique médicale et biostatistique
Donneau, Anne-Françoise ;  Université de Liège - ULiège > Département des sciences de la santé publique > Département des sciences de la santé publique
Vandenheede, Michel
Maertens De Noordhout, Alain  ;  Université de Liège - ULiège > Neurologie CHR
Schoenen, Jean  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Neuro-anatomie
Language :
English
Title :
Induction of long-lasting changes of visual cortex excitability by five daily sessions of repetitive transcranial magnetic stimulation (rTMS) in healthy volunteers and migraine patients
Publication date :
February 2006
Journal title :
Cephalalgia
ISSN :
0333-1024
eISSN :
1468-2982
Publisher :
Blackwell Science
Volume :
26
Issue :
2
Pages :
143-149
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 May 2010

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