"RIV/00216208:11150/13:10139973!RIV14-GA0-11150___" . "V\u00FDznam a limitace zrakov\u00FDch evokovan\u00FDch potenci\u00E1l\u016F ve studiu patofyziologie migr\u00E9ny" . . "habituation; pathophysiology; migraine; visual evoked patentials"@en . . "116727" . "6"^^ . . . . . . . . "Tal\u00E1b, Radom\u00EDr" . "I, P(GA309/09/0869)" . "Kubov\u00E1, Zuzana" . "Significance and Limitations of Visual Evoked Potentials in the Study of Pathophysiology of Migraine"@en . "CZ - \u010Cesk\u00E1 republika" . . . "76" . . "4"^^ . . . "11150" . . "Bedn\u00E1\u0159, Michal" . . "Dysfunkce centr\u00E1ln\u00EDho nervov\u00E9ho syst\u00E9mu je pova\u017Eov\u00E1na za prim\u00E1rn\u00ED faktor v patofyziologii migr\u00E9ny. Neurofyziologick\u00E9 techniky umo\u017E\u0148uj\u00ED neinvazivn\u011B testovat patofyziologick\u00E9 hypot\u00E9zy u migr\u00E9ny. Zrakov\u00E9 evokovan\u00E9 potenci\u00E1ly (Visual Evoked Potentials, VEP) jsou historicky i v sou\u010Dasn\u00E9 dob\u011B v tomto sm\u011Bru vedouc\u00ED modalitou, i kdy\u017E klasick\u00E9 hodnocen\u00ED VEP se uk\u00E1zalo b\u00FDt nep\u0159\u00EDnosn\u00E9. Abnormn\u00ED zpracov\u00E1n\u00ED zrakov\u00E9 informace u migr\u00E9ny dokl\u00E1d\u00E1 sn\u00ED\u017Een\u00ED anebo chyb\u011Bn\u00ED fyziologick\u00E9ho poklesu amplitudy VEPs (deficit habituace) na protrahovanou zrakovou stimulaci. Shrnuj\u00EDc\u00ED \u010Dl\u00E1nek p\u0159in\u00E1\u0161\u00ED v\u00FDb\u011Br studi\u00ED s VEP u migr\u00E9ny v\u010Detn\u011B recentn\u00EDch studi\u00ED vyu\u017E\u00EDvaj\u00EDc\u00EDch modula\u010Dn\u00ED postupy neur\u00E1ln\u00ED excitability (transkrani\u00E1ln\u00ED magnetick\u00E1 stimulace, hyperventilace, sv\u011Bteln\u00E1 deprivace). Na z\u00E1klad\u011B poznatk\u016F o habituaci VEP u migr\u00E9ny lze podpo\u0159it teorii sn\u00ED\u017Een\u00E9 preaktiva\u010Dn\u00ED \u00FArovn\u011B kortexu v interikt\u00E1ln\u00EDm obdob\u00ED, a to na podklad\u011B p\u0159evahy inhibi\u010Dn\u00EDch mechanizm\u016F v d\u016Fsledku funk\u010Dn\u00ED thalamo-kortik\u00E1ln\u00ED diskonekce. Migr\u00E9nu v\u0161ak charakterizuj\u00ED cyklick\u00E9 zm\u011Bny kortik\u00E1ln\u00ED aktivity - v preikt\u00E1ln\u00ED a ikt\u00E1ln\u00ED f\u00E1zi nebyl zji\u0161t\u011Bn deficit habituace VEP." . "Kreml\u00E1\u010Dek, Jan" . "V\u00FDznam a limitace zrakov\u00FDch evokovan\u00FDch potenci\u00E1l\u016F ve studiu patofyziologie migr\u00E9ny"@cs . "2" . "4"^^ . . "[7134A114F37A]" . . . "Significance and Limitations of Visual Evoked Potentials in the Study of Pathophysiology of Migraine"@en . . "Dysfunkce centr\u00E1ln\u00EDho nervov\u00E9ho syst\u00E9mu je pova\u017Eov\u00E1na za prim\u00E1rn\u00ED faktor v patofyziologii migr\u00E9ny. Neurofyziologick\u00E9 techniky umo\u017E\u0148uj\u00ED neinvazivn\u011B testovat patofyziologick\u00E9 hypot\u00E9zy u migr\u00E9ny. Zrakov\u00E9 evokovan\u00E9 potenci\u00E1ly (Visual Evoked Potentials, VEP) jsou historicky i v sou\u010Dasn\u00E9 dob\u011B v tomto sm\u011Bru vedouc\u00ED modalitou, i kdy\u017E klasick\u00E9 hodnocen\u00ED VEP se uk\u00E1zalo b\u00FDt nep\u0159\u00EDnosn\u00E9. Abnormn\u00ED zpracov\u00E1n\u00ED zrakov\u00E9 informace u migr\u00E9ny dokl\u00E1d\u00E1 sn\u00ED\u017Een\u00ED anebo chyb\u011Bn\u00ED fyziologick\u00E9ho poklesu amplitudy VEPs (deficit habituace) na protrahovanou zrakovou stimulaci. Shrnuj\u00EDc\u00ED \u010Dl\u00E1nek p\u0159in\u00E1\u0161\u00ED v\u00FDb\u011Br studi\u00ED s VEP u migr\u00E9ny v\u010Detn\u011B recentn\u00EDch studi\u00ED vyu\u017E\u00EDvaj\u00EDc\u00EDch modula\u010Dn\u00ED postupy neur\u00E1ln\u00ED excitability (transkrani\u00E1ln\u00ED magnetick\u00E1 stimulace, hyperventilace, sv\u011Bteln\u00E1 deprivace). Na z\u00E1klad\u011B poznatk\u016F o habituaci VEP u migr\u00E9ny lze podpo\u0159it teorii sn\u00ED\u017Een\u00E9 preaktiva\u010Dn\u00ED \u00FArovn\u011B kortexu v interikt\u00E1ln\u00EDm obdob\u00ED, a to na podklad\u011B p\u0159evahy inhibi\u010Dn\u00EDch mechanizm\u016F v d\u016Fsledku funk\u010Dn\u00ED thalamo-kortik\u00E1ln\u00ED diskonekce. Migr\u00E9nu v\u0161ak charakterizuj\u00ED cyklick\u00E9 zm\u011Bny kortik\u00E1ln\u00ED aktivity - v preikt\u00E1ln\u00ED a ikt\u00E1ln\u00ED f\u00E1zi nebyl zji\u0161t\u011Bn deficit habituace VEP."@cs . "Dysfunction of the central nervous system is considered to be the primary factor in the pathophysiology of migraines. Neurophysiological techniques enable non-invasive testing of pathophysiological hypotheses of migraines. In this respect, Visual evoked potentials (VEP) are historically and currently the leading modality, even though the traditional assessment of VEP did not prove useful. Abnormal processing of visual information in migraines is demonstrated by reduced or absent physiological, decline in VEP amplitude (habituation deficit) during prolonged visual stimulation. This review article presents a selection of studies with VEP for migraine, including recent studies using neural excitability modulation (transcranial magnetic stimulation, hyperventilation and light deprivation). The findings from studies of habituation to VEP in migraines can support the theory of reduced preactivation thresholds of the cortex in the interictal period, based on the predominance of inhibitory mechanisms due to thalamo-cortical functional dissociation. However, migraine is characterized by cyclic changes in cortical activity - there is no VEP habituation deficit in preictal and ictal phases."@en . "RIV/00216208:11150/13:10139973" . . "000317163400004" . "\u010Cesk\u00E1 a slovensk\u00E1 neurologie a neurochirurgie" . "V\u00FDznam a limitace zrakov\u00FDch evokovan\u00FDch potenci\u00E1l\u016F ve studiu patofyziologie migr\u00E9ny" . "1210-7859" . "V\u00FDznam a limitace zrakov\u00FDch evokovan\u00FDch potenci\u00E1l\u016F ve studiu patofyziologie migr\u00E9ny"@cs .