scholarly journals Cortical Depth-Dependent Modeling of Visual Hemodynamic Responses

2020 ◽  
Author(s):  
T.C. Lacy ◽  
P.A. Robinson ◽  
K.M. Aquino ◽  
J.C. Pang
Keyword(s):  
3D Model ◽  
Three Dimensional ◽  
Blood Oxygen Level Dependent ◽  
Flow Dynamics ◽  
Model Parameters ◽  
Blood Oxygen ◽  
Blood Oxygen Level ◽  
Bold Responses ◽  
Hemodynamic Model ◽  
Blood Flow Dynamics

AbstractA physiologically based three-dimensional (3D) hemodynamic model is used to predict the experimentally observed blood oxygen level dependent (BOLD) responses versus the cortical depth induced by visual stimuli. Prior 2D approximations are relaxed in order to analyze 3D blood flow dynamics as a function of cortical depth. Comparison of the predictions with experimental data for typical stimuli demonstrates that the full 3D model matches at least as well as previous approaches while requiring significantly fewer assumptions and model parameters.

Blood oxygen-level dependent functional assessment of cerebrovascular reactivity: Feasibility for intraoperative 3 Tesla MRI

2016 ◽  
Vol 77 (2) ◽  
pp. 806-813 ◽  
Author(s):  
Jorn Fierstra ◽  
Jan-Karl Burkhardt ◽  
Christiaan Hendrik Bas van Niftrik ◽  
Marco Piccirelli ◽  
Athina Pangalu ◽  
...  
Keyword(s):  
Functional Assessment ◽  
Blood Oxygen Level Dependent ◽  
Cerebrovascular Reactivity ◽  
3 Tesla ◽  
Blood Oxygen ◽  
Oxygen Level ◽  
Blood Oxygen Level ◽  
3 Tesla Mri

scholarly journals Assessment of Myocardial Reactivity to Controlled Hypercapnia with Free-breathing T2-prepared Cardiac Blood Oxygen Level–Dependent MR Imaging

Radiology ◽  
2014 ◽  
Vol 272 (2) ◽  
pp. 397-406 ◽  
Author(s):  
Hsin-Jung Yang ◽  
Roya Yumul ◽  
Richard Tang ◽  
Ivan Cokic ◽  
Michael Klein ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Free Breathing ◽  
Blood Oxygen Level Dependent ◽  
Blood Oxygen ◽  
Oxygen Level ◽  
Blood Oxygen Level ◽  
Cardiac Blood

scholarly journals Neural representations of own-voice in the human auditory cortex

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Taishi Hosaka ◽  
Marino Kimura ◽  
Yuko Yotsumoto
Keyword(s):  
Auditory Cortex ◽  
Superior Temporal Gyrus ◽  
Neural Correlates ◽  
Blood Oxygen Level Dependent ◽  
Blood Oxygen ◽  
Oxygen Level ◽  
Blood Oxygen Level ◽  
Neural Representations ◽  
Human Auditory Cortex ◽  
The Voice

AbstractWe have a keen sensitivity when it comes to the perception of our own voices. We can detect not only the differences between ourselves and others, but also slight modifications of our own voices. Here, we examined the neural correlates underlying such sensitive perception of one’s own voice. In the experiments, we modified the subjects’ own voices by using five types of filters. The subjects rated the similarity of the presented voices to their own. We compared BOLD (Blood Oxygen Level Dependent) signals between the voices that subjects rated as least similar to their own voice and those they rated as most similar. The contrast revealed that the bilateral superior temporal gyrus exhibited greater activities while listening to the voice least similar to their own voice and lesser activation while listening to the voice most similar to their own. Our results suggest that the superior temporal gyrus is involved in neural sharpening for the own-voice. The lesser degree of activations observed by the voices that were similar to the own-voice indicates that these areas not only respond to the differences between self and others, but also respond to the finer details of own-voices.

scholarly journals 2007 Blood oxygen level-dependent MRI in myocardium and skeletal muscle at 1.5 T and 3.0 T

2008 ◽  
Vol 10 (S1) ◽  
Author(s):  
Peter Bernhardt ◽  
Axel Bornstedt ◽  
Jochen Spiess ◽  
Vinzenz Hombach ◽  
Volker Rasche
Keyword(s):  
Skeletal Muscle ◽  
Blood Oxygen Level Dependent ◽  
Blood Oxygen ◽  
Oxygen Level ◽  
Blood Oxygen Level ◽  
3.0 T
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