J
Jeff H. Duyn
Researcher at National Institutes of Health
Publications - 192
Citations - 23535
Jeff H. Duyn is an academic researcher from National Institutes of Health. The author has contributed to research in topics: Magnetic resonance imaging & Resting state fMRI. The author has an hindex of 75, co-authored 184 publications receiving 20789 citations. Previous affiliations of Jeff H. Duyn include Johns Hopkins University School of Medicine.
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Journal ArticleDOI
Dynamic functional connectivity: Promise, issues, and interpretations
R. Matthew Hutchison,Thilo Womelsdorf,Elena A. Allen,Elena A. Allen,Peter A. Bandettini,Vince D. Calhoun,Vince D. Calhoun,Maurizio Corbetta,Maurizio Corbetta,Stefania Della Penna,Jeff H. Duyn,Gary H. Glover,Javier Gonzalez-Castillo,Daniel A. Handwerker,Shella D. Keilholz,Vesa Kiviniemi,David A. Leopold,Francesco de Pasquale,Olaf Sporns,Martin Walter,Martin Walter,Catie Chang +21 more
TL;DR: Emerging evidence suggests that dynamic FC metrics may index changes in macroscopic neural activity patterns underlying critical aspects of cognition and behavior, though limitations with regard to analysis and interpretation remain.
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The role of iron in brain ageing and neurodegenerative disorders
TL;DR: MRI can often identify changes in iron homoeostasis, thus providing a potential diagnostic biomarker of neurodegenerative diseases and an important avenue to reduce iron accumulation is the use of iron chelators that are able to cross the blood-brain barrier, penetrate cells, and reduce excessive iron accumulation, thereby affording neuroprotection.
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Neural basis of global resting-state fMRI activity
TL;DR: It is reported that the spontaneous fluctuations in the local field potential (LFP) measured from a single cortical site in monkeys at rest exhibit widespread, positive correlations with fMRI signals over nearly the entire cerebral cortex.
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Physiological Dysfunction of the Dorsolateral Prefrontal Cortex in Schizophrenia Revisited
Joseph H. Callicott,Alessandro Bertolino,Venkata S. Mattay,Frederick J.P. Langheim,Jeff H. Duyn,Richard Coppola,Terry E. Goldberg,Daniel R. Weinberger +7 more
TL;DR: The data suggest that under certain conditions the physiological ramifications of dorsal PFC neuronal pathology in schizophrenia includes exaggerated and inefficient cortical activity, especially of lateral PFC.
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High-field MRI of brain cortical substructure based on signal phase
Jeff H. Duyn,Peter van Gelderen,Tie-Qiang Li,Jacco A. de Zwart,Alan P. Koretsky,Masaki Fukunaga +5 more
TL;DR: In MRI of the human brain, large improvements in contrast to noise in high-resolution images are possible by exploiting the MRI signal phase at high magnetic field strength, an almost 10-fold improvement over conventional MRI techniques that do not use image phase.