Understanding human brain function requires
non-invasive and rapid visualization of human brain
activity. The University of Minnesota has state-of-the-art,
centralized resources that enable this visualization.
The Center of Magnetic Resonance Research (CMRR) is
an interdisciplinary MR research center where several
groups work together to develop novel imaging and
spectroscopic applications for the neurosciences.
The CMRR was one of two laboratories that introduced
functional brain mapping with MRI, and Minnesota remains
a world leader in high and ultrahigh field MR methodology.
The magneto-encephalography (MEG) system, housed in
the Brain Sciences Center at the Veterans Administration
Medical Center, uses an array of over 200 axial gradiometers
to detect the very small magnetic fields that result
from neural activity. Diverse research interests include
neural function in schizophrenia, neural activity
during spatial navigation, and algorithm development
to remove signal artifacts such as cardiac activity.
Finally, many electrophysiological (EEG) laboratories
exist on campus, including a number of both low- and
high-density event-related potential laboratories.
Collaboration between researchers using these different
neuroimaging methodologies combines the spatial resolution
of fMRI with the temporal resolution of EEG and MEG
to provide superior neuroimaging capabilities.