Results 21 to 30 of about 348,367 (159)

Investigation of the Pattern of the Hemodynamic Response as Measured by Functional Near-Infrared Spectroscopy (fNIRS) Studies in Newborns, Less Than a Month Old: A Systematic Review

Frontiers in Human Neuroscience, 2018
It has been 20 years since functional near-infrared spectroscopy (fNIRS) was first used to investigate the evoked hemodynamic response to a stimulus in newborns.
Isabel de Roever, Gemma Bale, Subhabrata Mitra, Judith Meek, Nicola J. Robertson, Ilias Tachtsidis   +5 more
doaj   +1 more source

Comparability of Functional MRI Response in Young and Old During Inhibition [PDF]

, 2004
When using fMRI to study age-related cognitive changes, it is important to establish the integrity of the hemodynamic response because, potentially, it can be affected by age and disease.
Garavan, Hugh, Langenecker, Scott Aaron, Nielson, Kristy A., Rao, Stephen M., Ross, Thomas J., Stein, Elliot   +5 more
core   +2 more sources

Hemodynamic Activity and Connectivity of the Prefrontal Cortex by Using Functional Near-Infrared Spectroscopy during Color-Word Interference Test in Korean and English Language

Brain Sciences, 2020
In daily living, people are challenged to focus on their goal while eliminating interferences. Specifically, this study investigated the pre-frontal cortex (PFC) activity while attention control was tested using the self-made color-word interference test
Gihyoun Lee, Ji-Su Park, Mezie Laurence B. Ortiz, Jun-Yong Hong, Seung-Ho Paik, Seung Hyun Lee, Beop Min Kim, Young-Jin Jung   +7 more
doaj   +1 more source

Comparison of two doses of intravenous esmolol in attenuation of hemodynamic response to extubation in laparoscopic surgeries

The Indian Anaesthetists' Forum, 2022
Aims and Objectives: The purpose of this study was the comparison of hemodynamic variables such as heart rate, systolic blood pressure, diastolic blood pressure, and mean arterial pressure during the extubation period following administration of two ...
S A Kshama, Laxmi Shenoy, Shweta Sinha
doaj   +1 more source

Systematic investigation of changes in oxidized cerebral cytochrome c oxidase concentration during frontal lobe activation in healthy adults [PDF]

, 2012
Using transcranial near-infrared spectroscopy (NIRS) to measure changes in the redox state of cerebral cytochrome c oxidase (Δ[oxCCO]) during functional activation in healthy adults is hampered by instrumentation and algorithm issues.
Asgari, Aziz-Zadeh, Banaji, Banaji, Chance, Cooper, Cooper, Cooper, Correia, Dehaes, Drabkin, Duncan, Essenpreis, Fantini, Gao, Germon, Germon, Gregg, Heekeren, Highton, Jöbsis, Kakihana, Kakihana, Matcher, McGown, Minati, Mintun, Obrig, Orihuela-Espina, Schneider, Schytz, Shuttleworth, Smith, Springett, Tachtsidis, Tachtsidis, Tachtsidis, Tachtsidis, Tachtsidis, Tachtsidis, Takahashi, Tian, Tisdall, Tisdall, Tisdall, Uludag, Uludag, Vartanian, Wolf   +48 more
core   +1 more source

Functional MRI of Sensorimotor Cortex in Preterm Infants

Pediatric Neurology Briefs, 2009
Functional MRI (fMRI) findings in a group of 5 pre-term infants were correlated with a unilateral passive forearm extension/flexion to relate the functional data to structural and behavioral data, in studies at the University of Bonn, Germany; and ...
J Gordon Millichap
doaj   +1 more source

Physiological models comparison for the analysis of ASL FMRI data [PDF]

, 2015
International audiencePhysiological models have been proposed to describe the processes that underlie the link between neural and hemodynamic activity in the brain.
Ciuciu, Philippe, Forbes, Florence, Frau-Pascual, Aina   +2 more
core   +3 more sources

Hyperpolarized ¹²⁹Xe Time-of-Flight MR Imaging of Perfusion and Brain Function

Diagnostics, 2020
Perfusion measurements can provide vital information about the homeostasis of an organ and can therefore be used as biomarkers to diagnose a variety of cardiovascular, renal, and neurological diseases.
Yurii Shepelytskyi, Francis T. Hane, Vira Grynko, Tao Li, Ayman Hassan, Mitchell S. Albert   +5 more
doaj   +1 more source

Activation detection in functional near-infrared spectroscopy by wavelet coherence [PDF]

, 2015
Functional near-infrared spectroscopy (fNIRS) detects hemodynamic responses in the cerebral cortex by transcranial spectroscopy. However, measurements recorded by fNIRS not only consist of the desired hemodynamic response but also consist of a number of ...
Jiang, Tianzi, Niu, Haijing, Xu, Wenting, Yu, Jian, Zhang, Xin, Zhang, Yujin, Zhao, Ruirui, Zuo, Nianming   +7 more
core   +1 more source

Effect of one minimum alveolar concentration sevoflurane with and without fentanyl on hemodynamic response to laryngoscopy and tracheal intubation

Journal of Anaesthesiology Clinical Pharmacology, 2011
Background : Drug combinations can be used for optimum obtundation of the hemodynamic response to tracheal intubation. The objective of this trial was to compare the hemodynamic response to laryngoscopy and tracheal intubation after administration of 2 ...
Anwar Hoda, Fauzia A Khan
doaj   +1 more source