Univ. Paris-Saclay

Service de Physique de l'Etat Condensé

Studying brain function by measuring neuromagnetic fields: How and why
Lauri Parkkonen
Department of Biomedical Engineering and Computational Science, Aalto university, Finland
Mercredi 10/09/2014, 11:00
SPEC Salle Itzykson, Bât.774, Orme des Merisiers

The magnetic fields due to electric activity in nerve cells can be detected outside of the body. An array of SQUID sensors is typically used to measure these femtotesla-range fields, and modeling the current distribution underlying these fields allows us infer the locations and time courses of brain activations. In this talk, I will introduce magnetoencephalography (MEG) as a method to non-invasively study the working human brain. I will discuss the current state and future trends in MEG instrumentation, illustrate the required mathematical modeling approaches, and present examples of neuroscientific studies done with MEG. I will also discuss how MEG and ultra-low-field MRI can be combined to a single brain imaging device.

Contact : Sebastien AUMAITRE


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