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Statements

Subject Item
n2:RIV%2F00216208%3A11120%2F06%3A00000116%21RIV07-GA0-11120___
rdf:type
n8:Vysledek skos:Concept
dcterms:description
Cílem studie bylo prozkoumat korové aktivační změny během nebolestivého chladového a teplého podnětu aplikovaného na pravý palcový val. Bylo použito korové mapování 10 Hz oscilací EEG metodou %22low-resolution tomography%22. Zjistili jsme, že první aktivace při působení chladu se dostavuje v kontralaterální zadní insule a premotorické kůře. Při působení tepla se ukázala první aktivace pouze v kontralaterální premotorické korové oblasti. Zadní insula, premotorická oblast a přední insula ukázaly významné korelace mezi změnou teploty a amplitudou 10 Hz oscilací. Výsledky ukazují, že dynamická tepelná stimulace aktivuje jak zadní insulu, tak mediální a laterální premotorické oblasti. Primary cold and warm afferent fibers show a robust overshoot in their firing during periods of temperature change, which subsides during tonic thermal stimulation. Our objective was to analyze cortical activation, on a scale of hundreds of milliseconds, occurring during the process of dynamic cooling and warming, based on an evaluation of the amplitude changes seen in 10 Hz electroencephalographic oscillations. Eleven right-handed subjects were exposed to innocuous cold ramp stimuli (from 32 degrees C to 22 degrees C, 10 degrees C/s) and warm ramp stimuli (32 degrees C to 42 degrees C, 10 degrees C/s) on the thenar region of their right palm, using a contact thermode. EEG was recorded from 111 scalp sites, and the 10 Hz current source densities were modeled using low-resolution electromagnetic tomography. During cooling, the earliest amplitude decreases of 10 Hz oscillations were seen in the contralateral posterior insula and secondary somatosensory cortex (SII), and the premotor cortex (PMC). Primary cold and warm afferent fibers show a robust overshoot in their firing during periods of temperature change, which subsides during tonic thermal stimulation. Our objective was to analyze cortical activation, on a scale of hundreds of milliseconds, occurring during the process of dynamic cooling and warming, based on an evaluation of the amplitude changes seen in 10 Hz electroencephalographic oscillations. Eleven right-handed subjects were exposed to innocuous cold ramp stimuli (from 32 degrees C to 22 degrees C, 10 degrees C/s) and warm ramp stimuli (32 degrees C to 42 degrees C, 10 degrees C/s) on the thenar region of their right palm, using a contact thermode. EEG was recorded from 111 scalp sites, and the 10 Hz current source densities were modeled using low-resolution electromagnetic tomography. During cooling, the earliest amplitude decreases of 10 Hz oscillations were seen in the contralateral posterior insula and secondary somatosensory cortex (SII), and the premotor cortex (PMC).
dcterms:title
Source imaging of the cortical 10 Hz oscillations during cooling and warming in humans Source imaging of the cortical 10 Hz oscillations during cooling and warming in humans Korové mapování korových 10 Hz oscilací při působení chladu a tepla u člověka
skos:prefLabel
Source imaging of the cortical 10 Hz oscillations during cooling and warming in humans Korové mapování korových 10 Hz oscilací při působení chladu a tepla u člověka Source imaging of the cortical 10 Hz oscillations during cooling and warming in humans
skos:notation
RIV/00216208:11120/06:00000116!RIV07-GA0-11120___
n3:strany
660-671
n3:aktivita
n15:Z n15:P
n3:aktivity
P(GA309/04/0160), P(GD102/03/H085), Z(MSM0021620816), Z(MSM6840770012)
n3:cisloPeriodika
2
n3:dodaniDat
n14:2007
n3:domaciTvurceVysledku
n5:5433185 n5:5169771 n5:9172955
n3:druhVysledku
n19:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
500576
n3:idVysledku
RIV/00216208:11120/06:00000116
n3:jazykVysledku
n7:eng
n3:klicovaSlova
cold; warm; EEG; cortex; oscillations
n3:klicoveSlovo
n4:cortex n4:warm n4:cold n4:oscillations n4:EEG
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[36519FE5578F]
n3:nazevZdroje
Neuroimage
n3:obor
n12:ED
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
4
n3:projekt
n9:GA309%2F04%2F0160 n9:GD102%2F03%2FH085
n3:rokUplatneniVysledku
n14:2006
n3:svazekPeriodika
33
n3:tvurceVysledku
Vrána, Jiří Mlynář, J. Stančák, Andrej Poláček, Hubert
n3:zamer
n16:MSM0021620816 n16:MSM6840770012
s:issn
1053-8119
s:numberOfPages
12
n13:organizacniJednotka
11120