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Abstract #3732

Submillimeter resolution fMRI in the midbrain: measuring T2* changes to a stop-task

Gilles de Hollander1, Robert Trampel2, Birte Forstmann1, and Wietske van der Zwaag3

1Universiteit van Amsterdam, Amsterdam, Netherlands, 2Max Planck Institute for Human Cognitive and Brain sciences, Leipzig, Germany, 3Spinoza Centre for Neuroimaging, Amsterdam, Netherlands

Multi-echo GRE was used to visualise BOLD signal changes in the midbrain, specifically targetting the subthalamic nucleus and substantia nigra, with submillimeter resolution. Midbrain clusters were very small and often only bordered the STN or SN, rather than falling robustly inside it, emphasizing the need for high spatial resolution.

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