Help Privacy Policy Disclaimer
  Advanced SearchBrowse




Meeting Abstract

Effect of temporal resolution and serial autocorrelations in fast fMRI


Scheffler,  K
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

External Resource

(Any fulltext)

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Sahib, A., Mathiak, K., Erb, M., Elshahabi, A., Klamer, S., Scheffler, K., et al. (2016). Effect of temporal resolution and serial autocorrelations in fast fMRI. In 24th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2016).

Cite as: https://hdl.handle.net/21.11116/0000-0000-7CE4-4
To assess the impact of colored noise on statistics and determine optimal imaging parameters in event-related fMRI (visual stimulation using checkerboards) acquired by simultaneous multi-slice imaging enabling repetition times (TR) between 2.64 to 0.26s. Optimal statistical power was obtained for a TR of 0.33s, but short TRs required higher-order autoregressive (AR) models to achieve stable statistics. Colored noise in event-related fMRI obtained at short TRs calls for more sophisticated correction of serial autocorrelations.