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  • S Ogawa, David W. Tank, +4 authors Kamil Ugurbil
  • Physics, Medicine
  • Proceedings of the National Academy of Sciences…
  • 1992 (First Publication: 1 July 1992)
  • We report that visual stimulation produces an easily detectable (5-20%) transient increase in the intensity of water proton magnetic resonance signals in human primary visual cortex in gradient echoContinue Reading
  • Eric R. Cohen, Kamil Ugurbil, Seong-Gi Kim
  • Biology, Medicine
  • Journal of cerebral blood flow and metabolism…
  • 2002 (First Publication: 1 September 2002)
  • The effect of the basal cerebral blood flow (CBF) on both the magnitude and dynamics of the functional hemodynamic response in humans has not been fully investigated. Thus, the hemodynamic responseContinue Reading
  • Timothy Q. Duong, Essa Yacoub, Gregory Adriany, Xiaoping Hu, Kamil Ugurbil, Seong-Gi Kim
  • Chemistry, Medicine
  • Magnetic resonance in medicine
  • 2003 (First Publication: 1 June 2003)
  • The BOLD signal consists of an intravascular (IV) and an extravascular (EV) component from both small and large vessels. Their relative contributions are dependent on field strength, imagingContinue Reading
  • Tae Kim, Kristy Hendrich, Kazuto Masamoto, Seong-Gi Kim
  • Medicine, Materials Science
  • Journal of cerebral blood flow and metabolism…
  • 2007 (First Publication: 1 June 2007)
  • Quantifying both arterial cerebral blood volume (CBVa) changes and total cerebral blood volume (CBVt) changes during neural activation can provide critical information about vascular controlContinue Reading
  • Georgios A. Tagaris, Seong-Gi Kim, John P. Strupp, Peter Andersen, Kamil Uurbil, Apostolos P. Georgopoulos
  • Psychology, Medicine
  • Journal of Cognitive Neuroscience
  • 1997 (First Publication: 1 July 1997)
  • We studied the performance and cortical activation patterns during a mental rotation task (Shepard & Metzler, 1971) using functional magnetic resonance imaging (fMlU) at high field (4 Tesla).Continue Reading