In this study 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 have to be hold in the memory before an appropriate decision has to be made by the subjects.
Frontoparietal cortical networks revealed by structural equation modeling and high resolution EEG during a short term memory task / Babiloni, Fabio; Cincotti, Febo; A., Basilisco; E., Maso; M., Bufano; Babiloni, Claudio; Carducci, Filippo; P., Rossini; S., Cerutti; D. B., Rubin. - (2003), pp. 79-82. (Intervento presentato al convegno 1st International IEEE/EMBS Conference on Neural Engineering tenutosi a CAPRI, ITALY nel MAR 20-22, 2003) [10.1109/cne.2003.1196760].
Frontoparietal cortical networks revealed by structural equation modeling and high resolution EEG during a short term memory task
BABILONI, Fabio;CINCOTTI, FEBO;BABILONI, CLAUDIO;CARDUCCI, Filippo;
2003
Abstract
In this study 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 have to be hold in the memory before an appropriate decision has to be made by the subjects.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
