Sensitivity of PPI analysis to differences in noise reduction strategies

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F15%3A00080949" target="_blank" >RIV/00216224:14740/15:00080949 - isvavai.cz</a>
Result on the web
<a href="http://ac.els-cdn.com/S0165027015002459/1-s2.0-S0165027015002459-main.pdf?_tid=2b313bc2-4259-11e5-bb7c-00000aab0f26&acdnat=1439538824_bbe2dc8b96cdc663b6ffb54057334360" target="_blank" >http://ac.els-cdn.com/S0165027015002459/1-s2.0-S0165027015002459-main.pdf?_tid=2b313bc2-4259-11e5-bb7c-00000aab0f26&acdnat=1439538824_bbe2dc8b96cdc663b6ffb54057334360</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jneumeth.2015.06.021" target="_blank" >10.1016/j.jneumeth.2015.06.021</a>

Result language
angličtina
Original language name
Sensitivity of PPI analysis to differences in noise reduction strategies
Original language description
Background In some fields of fMRI data analysis, using correct methods for dealing with noise is crucial for achieving meaningful results. This paper provides a quantitative assessment of the effects of different preprocessing and noise filtering strategies on psychophysiological interactions (PPI) methods for analyzing fMRI data where noise management has not yet been established. Methods Both real and simulated fMRI data were used to assess these effects. Four regions of interest (ROIs) were chosen for the PPI analysis on the basis of their engagement during two tasks. PPI analysis was performed for 32 different preprocessing and analysis settings, which included data filtering with RETROICOR or no such filtering; different filtering of the ROI ?seed? signal with a nuisance data-driven time series; and the involvement of these data-driven time series in the subsequent PPI GLM analysis.
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
Result was created during the realization of more than one project. More information in the Projects tab.
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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