OxyMon

Our most advanced and versatile fNIRS system


Publications using the OxyMon

High-intensity interval training to promote cerebral oxygenation and affective valence during exercise in individuals with obesity

eft/right prefrontal cortex (PFC) activation is linked to positive/negative affects, respectively. Besides, larger left PFC oxygenation during exercise relates to higher cardiorespiratory fitness (CRF). High-intensity interval training (HIIT) is …

Hypohydration alters pre-frontal cortex haemodynamics, but does not impair motor learning

Abstract It is unknown how hypohydration influences fine motor performance training and motor learning. Here, 30 participants (aged 19–46 years) were randomly assigned to a hypohydration (HYPO) or control (CON) group (both n = 15). Moderate …

Influence of the Somatic Rubber Hand Illusion on Maximum Grip Aperture

The classic rubber hand illusion (RHI), based on visual, proprioceptive, and tactile feedback, can affect actions. However, it is not known whether these effects still occur if the paradigm is administered without visual feedback. In this study, we …

Prefrontal cortex activation upon a demanding virtual hand-controlled task: A new frontier for neuroergonomics

Functional near-infrared spectroscopy (fNIRS) is a non-invasive vascular-based functional neuroimaging technology that can assess, simultaneously from multiple cortical areas, concentration changes in oxygenated-deoxygenated hemoglobin at the level …

BRAIN OXYGENATION ASSESSED BY NEAR-INFRARED SPECTROSCOPY DURING A MENTAL TASK AND A MILD PHYSICAL STRESS IN HEMODIALYSIS AND PERITONEAL DIALYSIS

bjective: Cognitive impairment is highly prevalent in end-stage kidney disease (ESKD) individuals. Brain oxygenation is a parameter that plays major role in cognitive function. This study aimed to examine for the first time changes in brain …

Blunted cerebral oxygenation during exercise in systemic lupus erythematosus patients

Objectives: Subclinical brain lesions have been reported in systemic lupus erythematosus (SLE) patients. Advanced neuroimaging techniques have revealed microstructural and microvascular alterations. Most studies examining structural or functional …

Exertional Desaturation in Idiopathic Pulmonary Fibrosis: The Role of Oxygen Supplementation in Modifying Cerebral-Skeletal Muscle Oxygenation and Systemic Hemodynamics

textbftextitBackground: In patients with idiopathic pulmonary fibrosis (IPF) with isolated exertional desaturation, there are limited data regarding the effectiveness of oxygen supplementation during exercise training; the underlying mechanisms that …

Bilinguals have more effective executive function: Evidence from an fNIRS study of the neural correlates of cognitive shifting

Aims and objectives/purpose/research questions: The bilingual advantage in executive function (EF) has recently been explored with functional near-infrared spectroscopy (fNIRS) technology, but the results are still controversial because of the …

MO685: Brain Oxygenation Assessed by Near-Infrared Spectroscopy During a Mental Task and a Mild Physical Stress in Hemodialysis and Peritoneal Dialysis

Abstract BACKGROUND AND AIMS Cognitive impairment is highly prevalent in end-stage kidney disease (ESKD) individuals. Brain oxygenation is a parameter that plays major role in cognitive function. This study aimed to examine for the first time …

Cerebral haemodynamics and oxygenation during whole‐body exercise over 5 days at high altitude

Deterioration and subsequent improvement in cerebral oxygenation during acute and prolonged hypoxic exposure may affect whole-body exercise performance at high altitude. In this study, we investigated the effect of hypoxic exposure on cerebral …

Differences in cerebral oxygenation during exercise in patients with idiopathic pulmonary fibrosis with and without exertional hypoxemia: does exercise intensity matter?

Introduction and Objectives Patients with idiopathic pulmonary fibrosis (IPF) present respiratory derangements at rest and during exercise, accompanied by exercise intolerance. Some patients may develop profound exertional desaturation even without …

Differential Brain and Muscle Tissue Oxygenation Responses to Exercise in Tibetans Compared to Han Chinese

The Tibetans’ better aerobic exercise capacity at altitude remains ill-understood. We tested the hypothesis that Tibetans display better muscle and brain tissue oxygenation during exercise in hypoxia. Using near-infrared spectrometry (NIRS) to …

A deep convolutional neural network for estimating hemodynamic response function with reduction of motion artifacts in fNIRS

Abstract Objective: Functional near-infrared spectroscopy (fNIRS) is a neuroimaging technique for monitoring hemoglobin concentration changes in a non-invasive manner. However, subject movements are often significant sources of artifacts. While …

Increase in Low-Frequency Oscillations in fNIRS as Cerebral Response to Auditory Stimulation with Familiar Music

Recognition of typical patterns of brain response to external stimuli using near-infrared spectroscopy (fNIRS) may become a gateway to detecting covert consciousness in clinically unresponsive patients. This is the first fNIRS study on the cortical …

Acute effects of exercise on cerebrovascular response and cognitive performance in individuals with stable coronary heart disease

Background Individuals with coronary heart disease (CHD) exhibit cognitive deficits and cerebrovascular dysfunctions, and are at higher risk of developing dementia. Cognitive function in individuals with CHD has never been studied during acute …

International Journal of Image, Graphics and Signal Processing(IJIGSP)

Consumers undergo an intellectual burden when working with technological programs. Mostly in situations of several activities. For instance, while communicating when driving with the navigation device. It is not necessary to divert users from their …

Blood volume vs. deoxygenated NIRS signal: computational analysis of the effects muscle O 2 delivery and blood volume on the NIRS signals

Near-infrared spectroscopy (NIRS) signals quantify the oxygenated ($Δ$HbMbO 2 ) and deoxygenated ($Δ$HHbMb) heme group concentrations. $Δ$HHbMb has been preferred to $Δ$HbMbO 2 in evaluating skeletal muscle oxygen extraction because it is assumed to …

Effects of graded hypoxia during exhaustive intermittent cycling on subsequent exercise performance and neuromuscular responses

This study examined the effect of graded hypoxia during exhaustive intermittent cycling on subsequent exercise performance and neuromuscular fatigue characteristics in normoxia. Fifteen well-trained cyclists performed an exhaustive intermittent …

Supplemental Watermelon Juice Attenuates Acute Hyperglycemia-Induced Macro-and Microvascular Dysfunction in Healthy Adults

Background Acute hyperglycemia reduces NO bioavailability and causes macro- and microvascular dysfunction. Watermelon juice (WMJ) is a natural source of the amino acid citrulline, which is metabolized to form arginine for the NO cycle and may improve …

The Role of Deconditioning in the End-Stage Renal Disease Myopathy: Physical Exercise Improves Altered Resting Muscle Oxygen Consumption

Background: Skeletal muscle dysfunction and poor exercise tolerance are hallmarks of end-stage renal disease (ESRD). Noninvasively measured (near-infrared spectroscopy, NIRS) resting muscle oxygen consumption (rmVO2) is a biomarker of muscle …