High Temporal Resolution FMRI-Study of Trial-By-Trial Brain Function in Visual Attention

Mehdi Ordikhani-Seyedlar¹, Benjamin Zahneisen¹, Thimo Hugger¹, Jrgen Hennig¹, Pierre LeVan¹

Our aim was to use a new technique to acquire the whole brain functional imaging data at a high temporal resolution of 100ms while doing a visuospatial attention task. This study showed that high temporal resolution fMRI can successfully measure small fluctuations in trial-by-trial BOLD signal correlated with reaction time in order to identify the emergence of functional networks in the brain during the execution of a cognitive task.