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 +48 more
core +1 more source
Hemodynamic response magnetic resonance imaging: application for renal hemodynamic characterization [PDF]
Nephrology Dialysis Transplantation, 2013 The clinical use of iodinated radiocontrast agents or gadolinium for renal perfusion imaging is limited in the presence of renal dysfunction. We have previously demonstrated the feasibility of hemodynamic response imaging (HRI), a functional magnetic resonance imaging (MRI) method combined with hypercapnia and hypercapnic-hyperoxia, for monitoring ...
Zohar, Milman +7 more
openaire +2 more sources
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 +2 more
core +3 more sources
Scandinavian Journal of Work, Environment & Health, 2018 OBJECTIVES: The present study examined hemodynamic responses of normotensive and untreated hypertensive participants under simulated long working hours (LWH) – 13 hours – in an experimental laboratory study.
Hiroki Ikeda +4 more
doaj +1 more source
Task-Specific Stimulation Duration for fNIRS Brain-Computer Interface
IEEE Access, 2020 In this paper, the most effective stimulation durations in the visual, somatosensory, and motor cortices are investigated. To evoke hemodynamic responses (HRs) for the purpose of brain-computer interface (BCI) with functional near-infrared spectroscopy ...
M. N. Afzal Khan +2 more
doaj +1 more source
Semiparametric Bayesian models for human brain mapping [PDF]
, 2002 Functional magnetic resonance imaging (fMRI) has led to enormous progress in human brain mapping. Adequate analysis of the massive spatiotemporal data sets generated by this imaging technique, combining parametric and non-parametric components, imposes ...
C Gössl +4 more
core +2 more sources
Comparing the effect of dexmedetomidine with magnesium sulfate on hemodynamic changes in patients undergoing laparoscopic cholecystectomy [PDF]
مجله علوم پزشکی فیض (پیوسته), 2023 Background: Evolution of laparoscopic surgery has been enormous help to both patient and surgeon, although incidence of pneumoperitoneum as consequence of laparoscopic surgery would cause hemodynamic instability.
Mehdi Rajabi +3 more
doaj +2 more sources
Regularized brain reading with shrinkage and smoothing [PDF]
, 2016 Functional neuroimaging measures how the brain responds to complex stimuli. However, sample sizes are modest, noise is substantial, and stimuli are high dimensional. Hence, direct estimates are inherently imprecise and call for regularization. We compare
Ramdas, Aaditya +3 more
core +1 more source
Delayed hemodynamic responses in schizophrenia
NeuroImage, 2005 While there are many reports of reduced amplitude of hemodynamic responses in schizophrenia, there are no reports of delayed hemodynamic responses, in spite of event-related brain potential (ERP) evidence of slowed neural responses. Recently, Henson et al. (2002) [Henson, R., Price, C., Rugg, M., Turner, R., Friston, K., 2002.
Judith M, Ford +4 more
openaire +2 more sources
Processing linguistic complexity and grammaticality in the left frontal cortex [PDF]
, 2006 1
Bornkessel, I. +4 more
core +2 more sources