scholarly journals Origin of Synchronized Low-Frequency Blood Oxygen Level–Dependent Fluctuations in the Primary Visual Cortex

2008 ◽  
Vol 29 (9) ◽  
pp. 1722-1729 ◽  
Author(s):  
J.S. Anderson
Keyword(s):  
Visual Cortex ◽  
Primary Visual Cortex ◽  
Low Frequency ◽  
Blood Oxygen Level Dependent ◽  
Blood Oxygen ◽  
Oxygen Level ◽  
Blood Oxygen Level

Retinotopic variations of the negative blood-oxygen-level dependent hemodynamic response function in human primary visual cortex

2021 ◽  
Vol 125 (4) ◽  
pp. 1045-1057 ◽  
Author(s):  
Natasha de la Rosa ◽  
David Ress ◽  
Amanda J. Taylor ◽  
Jung Hwan Kim
Keyword(s):  
Visual Cortex ◽  
Response Function ◽  
Complex Dynamics ◽  
Hemodynamic Response ◽  
Blood Oxygen Level Dependent ◽  
Blood Oxygen ◽  
Oxygen Level ◽  
Hemodynamic Response Function ◽  
Blood Oxygen Level ◽  
Early Visual Cortex

We investigate dynamics of the negative hemodynamic response function (nHRF), the negative blood-oxygen-level-dependent (BOLD) response (NBR) evoked by a brief stimulus, in human early visual cortex. Here, we show that the nHRFs are not inverted versions of the corresponding pHRFs. The nHRF has complex dynamics that varied significantly with eccentricity. The results also show shift-invariant temporal linearity does not hold for the NBR.

Low-frequency blood oxygen level-dependent fluctuations in the brain white matter: more than just noise

2017 ◽  
Vol 62 (9) ◽  
pp. 656-657 ◽  
Author(s):  
Gong-Jun Ji ◽  
Wei Liao ◽  
Fang-Fang Chen ◽  
Lei Zhang ◽  
Kai Wang
Keyword(s):  
White Matter ◽  
Low Frequency ◽  
Blood Oxygen Level Dependent ◽  
Blood Oxygen ◽  
Oxygen Level ◽  
Blood Oxygen Level ◽  
Brain White Matter ◽  
The Brain

Multiple Sclerosis: Low-Frequency Temporal Blood Oxygen Level–Dependent Fluctuations Indicate Reduced Functional Connectivity—Initial Results

Radiology ◽  
2002 ◽  
Vol 224 (1) ◽  
pp. 184-192 ◽  
Author(s):  
Mark J. Lowe ◽  
Micheal D. Phillips ◽  
Joseph T. Lurito ◽  
David Mattson ◽  
Mario Dzemidzic ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Functional Connectivity ◽  
Low Frequency ◽  
Blood Oxygen Level Dependent ◽  
Blood Oxygen ◽  
Oxygen Level ◽  
Blood Oxygen Level ◽  
Initial Results

scholarly journals Complexity of low-frequency blood oxygen level-dependent fluctuations covaries with local connectivity

2013 ◽  
Vol 35 (4) ◽  
pp. 1273-1283 ◽  
Author(s):  
Jeffrey S. Anderson ◽  
Brandon A. Zielinski ◽  
Jared A. Nielsen ◽  
Michael A. Ferguson
Keyword(s):  
Low Frequency ◽  
Blood Oxygen Level Dependent ◽  
Blood Oxygen ◽  
Oxygen Level ◽  
Local Connectivity ◽  
Blood Oxygen Level
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