An fMRI investigation into the effect of preceding stimuli during visual oddball tasks

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F15%3A00084727" target="_blank" >RIV/00216224:14740/15:00084727 - isvavai.cz</a>
Result on the web
<a href="http://ac.els-cdn.com/S0165027015001788/1-s2.0-S0165027015001788-main.pdf?_tid=9a20bf90-8dfd-11e5-b99f-00000aab0f01&acdnat=1447855785_2848590d3bb6924b3aa3be243f10167e" target="_blank" >http://ac.els-cdn.com/S0165027015001788/1-s2.0-S0165027015001788-main.pdf?_tid=9a20bf90-8dfd-11e5-b99f-00000aab0f01&acdnat=1447855785_2848590d3bb6924b3aa3be243f10167e</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jneumeth.2015.05.005" target="_blank" >10.1016/j.jneumeth.2015.05.005</a>

Result language
angličtina
Original language name
An fMRI investigation into the effect of preceding stimuli during visual oddball tasks
Original language description
Background: This study investigates the modulatory effect of stimulus sequence on neural responses to novel stimuli. A group of 34 healthy volunteers underwent event-related functional magnetic resonance imaging while performing a three-stimulus visual oddball task, involving randomly presented frequent stimuli and two types of infrequent stimuli targets and distractors. New method: We developed a modified categorization of rare stimuli that incorporated the type of preceding rare stimulus, and analyzedthe event-related functional data according to this sequence categorization; specifically, we explored hemodynamic response modulation associated with increasing rare-to-rare stimulus interval. Results: For two consecutive targets, a modulation of brainfunction was evident throughout posterior midline and lateral temporal cortex, while responses to targets preceded by distractors were modulated in a widely distributed fronto-parietal system.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
FH - Neurology, neuro-surgery, nuero-sciences
OECD FORD branch
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Project
<a href="/en/project/ED1.1.00%2F02.0068" target="_blank" >ED1.1.00/02.0068: Central european institute of technology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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