Frontoparietal cortical networks revealed by structural equation modeling and high resolution EEG during a short term memory task

F Babiloni, F Cincotti, A Basilisco… - First International …, 2003 - ieeexplore.ieee.org
F Babiloni, F Cincotti, A Basilisco, E Maso, M Bufano, C Babiloni, F Carducci, P Rossini
First International IEEE EMBS Conference on Neural Engineering …, 2003ieeexplore.ieee.org
We addressed questions related to the cortical sources involved in the spatial short term
memory in humans. Such sources were estimated from non-invasive EEG recordings by
using linear inverse procedure in a group of 9 normal healthy subjects. Analyzed neural
activations from EEG recordings were obtained in regions of interest (ROIs) of few squared
cm at the cortical level. Structural equation modeling (SEM) technique was then used to
assess effective connectivity between cortical ROIs. Results showed an increase of …
We addressed questions related to the cortical sources involved in the spatial short term memory in humans. Such sources were estimated from non-invasive EEG recordings by using linear inverse procedure in a group of 9 normal healthy subjects. Analyzed neural activations from EEG recordings were obtained in regions of interest (ROIs) of few squared cm at the cortical level. Structural equation modeling (SEM) technique was then used to assess effective connectivity between cortical ROIs. Results showed an increase of connectivity of cortical prefrontal and premotor areas during the task phase in which an image has to be held in the memory before an appropriate decision has to be made by the subjects.
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