BSC Journal Club

Dr Arthur Leuthold will be leading the seminar discussion this coming Monday (06 July 2009.

VAMC Location: BSC LIBRARY
Time: 4pm

He will give an overview of the subject of neuronal current MRI. Neuronal currents produce local magnetic fields which may effect measured MR phase or amplitude.

The suggested reading is "Challenges for detection of neuronal currents by MRI"  <cid:part1.08080207.08020202@umn.edu>
by Gisela Hagberg, Marta Bianciardi and Bruno Maraviglia
Magnetic Resonance Imaging, Volume 24, Issue 4, May 2006, Pages 483-493

Abstract
      Neuronal current MRI (nc-MRI) is an imaging method that directly maps magnetic field changes caused by neuronal currents with, at the same time, a high spatial and temporal resolution. A viable nc-MRI method would be of great benefit, both for the study of human brain function and for clinical applications in the field of epilepsy, especially for the noninvasive presurgical mapping of epileptogenic foci. A survey of fundamental issues in nc-MRI is reviewed, and challenges for future developments of the method are described within this context. Particularly, an overview of the models for signal generation is given, and the origin and physiology of different sources of neuronal currents are described. Prospects for predicting neuronal currents by electromagnetic field mapping and using this information, both a priori and a posteriori, for nc-MRI are considered. Ways of increasing specificity in nc-MRI by minimizing secondary hemodynamic and metabolic effects are described as well as means of optimizing the nc-MRI method for pushing the detection limit. Previously published works are described within these categories and future directions for nc-MRI are proposed.

 New Arrivals

     Program support assistant Annah Adanene rejoins the BSC this spring to work on a research project on Apostolos Georgopoulos’ team. She will work closely with Peka Christova Savayan and Dale Boeff on this project. Annah had worked previously at the Center in 2008 and in the winter of 2009. In September, Annah will return to the University of Minnesota to finish her undergraduate degree in neuroscience. She is on track to graduate in May 2010. Annah is originally from Minneapolis, MN

 

     Graduate student Sofia Sakellaridi joins the Brain Sciences Center this spring, to work in a research project in Matt Chafee’s lab. Sofia's work at the BSC is part of her doctoral studies within the University of Minnesota’s graduate program in Computer Science and Engineering. She is originally from Piraeus, Attica, Greece.

 

 

     Intern Ashley Aaroe joins the BSC this spring to assist James Ashe on his neural control of decision timing research project. Ashley is a Neuroscience undergraduate at Johns Hopkins University in Baltimore, and will return to Johns Hopkins this fall for her junior year. She plans to concentrate her studies in systems neuroscience. She is originally from Rochester, N.Y., and also spent time growing up in Xiamen, China.

 

     Recent University of Wisconsin graduate David Rubins has rejoined the Brain Sciences Center to resume his data analysis work in Dr. Georgopoulos’ lab. David earned his Bachelor’s of Science degree in Neuroscience from UW-Madison this spring, and will return there this fall to take additional classes before he enters medical school next year. He has already been accepted into the Medical School at the University of Washington in St. Louis, MO., but will defer his entrance there until the fall of 2010. David has worked as an intern the previous four summers at BSC. He is originally from St. Louis Park, MN.

 

 New Positions

     Khoshnoodi Matches to Emory Neurology Residency Program Brain Sciences Center research associate Nima Khoshnoodi has matched into the Neurology Residency Program at Emory University in Atlanta. Nima came to the BSC in June 2007 to work in James Ashe’s lab on studies of motor learning and decision making. He is a graduate of Tehran University of Medical Sciences. Nima will begin his residency program at Emory in July.

 

     Karageorgiou Matches to UM Neurology Residency Program Brain Sciences Center postdoctoral associate Elissaios Karageorgiou has been matched into the University of Minnesota's Neurology Residency Program.  Upon graduation from the University of Athens Medical School in 2005, Elissaios came to Minneapolis to work in Apostolos Georgopoulos’ lab at the Brain Sciences Center.  While at the Center, Elissaios’ work has focused on functional brain imaging studies using MEG. He will begin his neurology residency program at the University of Minnesota this summer.

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