Letizia Maria Cupini|Maria Matteis|Elio Troisi|Maurizio Sabbadini|Giorgio Bernardi|Carlo Caltagirone|Mauro Silvestrini
Bilateral simultaneous transcranial Doppler monitoring of flow velocity changes during visuospatial and verbal working memory tasks
St. Eugenio Hospital|University of Rome Tor Vergata|Fondazione Santa Lucia|Istituti di Ricovero e Cura a Carattere Scientifico|Istituti di Ricovero e Cura a Carattere Scientifico|Fondazione Santa Lucia|Fondazione Santa Lucia|Istituti di Ricovero e Cura a Carattere Scientifico|Istituti di Ricovero e Cura a Carattere Scientifico|Fondazione Santa Lucia|St. Eugenio Hospital|University of Rome Tor Vergata|St. Eugenio Hospital|University of Rome Tor Vergata|St. Eugenio Hospital|University of Rome Tor Vergata
twentytwo normal volunteers studied simultaneous bilateral transcranial doppler tcd monitoring flow velocity changes middle cerebral arteries visuospatial verbal working memory tasks tasks visually presented material required full engagement subjects study similar attention demands manual response appropriate target recognized stimuli presented tachistoscopically task produced significant distinct effects flow velocity respect baseline values sidetoside comparisons performed significantly higher increase flow velocity observed right middle cerebral artery mca compared left one visuospatial task p 0005 findings agree results recent studies using pet show lateralized activation working memory tasks high temporal resolution technique suggests application cerebral flow change monitoring neuropsychological studies could promising