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

Kód výsledku v IS VaVaI

RIV/00216224:14740/15:00084727 - isvavai.cz

Výsledek na webu

http://ac.els-cdn.com/S0165027015001788/1-s2.0-S0165027015001788-main.pdf?_tid=9a20bf90-8dfd-11e5-b99f-00000aab0f01&acdnat=1447855785_2848590d3bb6924b3aa3be243f10167e

DOI - Digital Object Identifier

10.1016/j.jneumeth.2015.05.005

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FH - Neurologie, neurochirurgie, neurovědy

OECD FORD obor

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Projekt

ED1.1.00/02.0068: CEITEC - central european institute of technology

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Neuroscience Methods

ISSN

0165-0270

e-ISSN

—

Svazek periodika

251

Číslo periodika v rámci svazku

August

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

56-61

Kód UT WoS článku

000358631700007

EID výsledku v databázi Scopus

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