Search Results - "Uludag, Kâmil"

Linking brain vascular physiology to hemodynamic response in ultra-high field MRI by Uludağ, Kâmil, Blinder, Pablo

“…Functional MRI using blood oxygenation level-dependent (BOLD) contrast indirectly probes neuronal activity via evoked cerebral blood volume (CBV) and…”
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A dynamical model of the laminar BOLD response by Havlicek, Martin, Uludağ, Kâmil

“…High-resolution functional magnetic resonance imaging (fMRI) using blood oxygenation dependent level-dependent (BOLD) signal is an increasingly popular tool to…”
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Physiological modeling of the BOLD signal and implications for effective connectivity: A primer by Uludağ, Kâmil

“…•BOLD signal is an indirect reflection of neuronal activity.•Oxidative metabolism, cerebral blood flow and volume determine the change in deoxygenated…”
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General overview on the merits of multimodal neuroimaging data fusion by Uludağ, Kâmil, Roebroeck, Alard

“…Multimodal neuroimaging has become a mainstay of basic and cognitive neuroscience in humans and animals, despite challenges to consider when acquiring and…”
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Relationship of the BOLD signal with VEP for ultrashort duration visual stimuli (0.1 to 5 ms) in humans by Yeşilyurt, Barış, Whittingstall, Kevin, Uğurbil, Kâmil, Logothetis, Nikos K, Uludağ, Kâmil

“…There is currently a great interest to combine electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) to study brain function. Earlier…”
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An integrative model for neuronal activity-induced signal changes for gradient and spin echo functional imaging by Uludag, Kâmil, Müller-Bierl, Bernd, Ugurbil, Kâmil

“…Gradient and spin echo (GRE and SE, respectively) weighted magnetic resonance images report on neuronal activity via changes in deoxygenated hemoglobin content…”
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Impact of acquisition and analysis strategies on cortical depth-dependent fMRI by Kashyap, Sriranga, Ivanov, Dimo, Havlicek, Martin, Poser, Benedikt A., Uludağ, Kâmil

“…Functional MRI at ultra-high magnetic fields (≥ 7T) provides the opportunity to probe columnar and laminar processing in the human brain in vivo at…”
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The effect of spatial resolution on decoding accuracy in fMRI multivariate pattern analysis by Gardumi, Anna, Ivanov, Dimo, Hausfeld, Lars, Valente, Giancarlo, Formisano, Elia, Uludağ, Kâmil

“…Multivariate pattern analysis (MVPA) in fMRI has been used to extract information from distributed cortical activation patterns, which may go undetected in…”
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Non-BOLD contrast for laminar fMRI in humans: CBF, CBV, and CMRO2 by Huber, Laurentius, Uludağ, Kâmil, Möller, Harald E.

“…Functional magnetic resonance imaging (fMRI) using the blood oxygenation level-dependent (BOLD) contrast indirectly probes neuronal activity changes via evoked…”
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Sub-millimetre resolution laminar fMRI using Arterial Spin Labelling in humans at 7 T by Kashyap, Sriranga, Ivanov, Dimo, Havlicek, Martin, Huber, Laurentius, Poser, Benedikt A, Uludağ, Kâmil

“…Laminar fMRI at ultra-high magnetic field strength is typically carried out using the Blood Oxygenation Level-Dependent (BOLD) contrast. Despite its unrivalled…”
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Editorial for "Comparison of a Deep Learning-Accelerated Versus Conventional T2-Weighted Sequence in Biparametric MRI of the Prostate" by Wu, Zhe, Bhayana, Rajesh, Uludağ, Kâmil

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Neuroimaging with ultra-high field MRI: Present and future by Polimeni, Jonathan R., Uludağ, Kâmil

“…The most well-known example of this is contrast based on magnetic susceptibility effects, which grow with field strength. [...]methods, such as T2*– or…”
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High-resolution in vivo imaging of human locus coeruleus by magnetization transfer MRI at 3T and 7T by Priovoulos, Nikos, Jacobs, Heidi I.L., Ivanov, Dimo, Uludağ, Kâmil, Verhey, Frans R.J., Poser, Benedikt A.

“…Locus Coeruleus (LC) is a neuromelanin-rich brainstem structure that is the source of noradrenaline in the cortex and is thought to modulate attention and…”
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To dip or not to dip: Reconciling optical imaging and fMRI data by Uludag, Kâmil

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Cortical depth profiles of luminance contrast responses in human V1 and V2 using 7 T fMRI by Marquardt, Ingo, Schneider, Marian, Gulban, Omer Faruk, Ivanov, Dimo, Uludağ, Kâmil

“…Neural activity in early visual cortex is modulated by luminance contrast. Cortical depth (i.e., laminar) contrast responses have been studied in monkey early…”
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The impact of ultra-high field MRI on cognitive and computational neuroimaging by De Martino, Federico, Yacoub, Essa, Kemper, Valentin, Moerel, Michelle, Uludağ, Kâmil, De Weerd, Peter, Ugurbil, Kamil, Goebel, Rainer, Formisano, Elia

“…The ability to measure functional brain responses non-invasively with ultra high field MRI (7 T and above) represents a unique opportunity in advancing our…”
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Dynamic Effective Connectivity using Physiologically informed Dynamic Causal Model with Recurrent Units: A functional Magnetic Resonance Imaging simulation study by Nag, Sayan, Uludag, Kamil

“…Functional MRI (fMRI) is an indirect reflection of neuronal activity. Using generative biophysical model of fMRI data such as Dynamic Causal Model (DCM), the…”
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Dynamic behavior of the locus coeruleus during arousal-related memory processing in a multi-modal 7T fMRI paradigm by Jacobs, Heidi Il, Priovoulos, Nikos, Poser, Benedikt A, Pagen, Linda Hg, Ivanov, Dimo, Verhey, Frans Rj, Uludağ, Kâmil

“…A body of animal and human evidence points to the norepinephrine (NE) locus coeruleus (LC) system in modulating memory for arousing experiences, but whether…”
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Improved laminar specificity and sensitivity by combining SE and GE BOLD signals by Han, SoHyun, Eun, Seulgi, Cho, HyungJoon, Uludaǧ, Kamil, Kim, Seong-Gi

“…•Spin- and gradient-echo (SAGE) EPI was implemented for high spatial resolution fMRI at 7 T.•Microvascular-passed sigmoidal vessel-size filters were designed…”
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Comparison of 3 T and 7 T ASL techniques for concurrent functional perfusion and BOLD studies by Ivanov, Dimo, Gardumi, Anna, Haast, Roy A.M., Pfeuffer, Josef, Poser, Benedikt A., Uludağ, Kâmil

“…Arterial spin labeling (ASL) is the primary non-invasive MRI approach to measure baseline cerebral blood flow (CBF) in healthy subjects and patients. ASL also…”
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