Common deactivation patterns during working memory and visual attention tasks: An intra-subject fMRI study at 4 Tesla

• Published in: Human brain mapping Vol. 27; no. 8; pp. 694 - 705
• Main Authors: Tomasi, Dardo, Ernst, Thomas, Caparelli, Elisabeth C., Chang, Linda
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.08.2006
• Subjects: activation; Adult; Attention - physiology; Brain - anatomy & histology; Brain - physiology; Brain Mapping - methods; CBF; Cerebrovascular Circulation - physiology; deactivation; Evoked Potentials - physiology; Female; fMRI; Functional Laterality - physiology; Humans; Magnetic Resonance Imaging - methods; Magnetics; Male; Memory, Short-Term - physiology; Nerve Net - anatomy & histology; Nerve Net - physiology; Neural Inhibition - physiology; Neural Pathways - anatomy & histology; Neural Pathways - physiology; Neuropsychological Tests; PET; Photic Stimulation; visual attention; Visual Perception - physiology; working memory

This parametric functional magnetic resonance imaging (fMRI) study investigates the balance of negative and positive fMRI signals in the brain. A set of visual attention (VA) and working memory (WM) tasks with graded levels of difficulty was used to deactivate separate but overlapping networks that...