Not Just a Matter of Accuracy: A fNIRS Pilot Study into Discrepancy Between Sleep Data and Subjective Sleep Experience in Quantified-Self Sleep Tracking

Quantified-self sleep tracking devices such as Fitbit are gaining great popular in recent years. However, users often complain about the discrepancy between the data collected with sleep trackers and their subjective sleep experience, which is often …

Intra-individual Variation of the Muscular Oxygen Saturation at Different Exercise Intensities and Cadences

Cognitive Control: Transitions in Control Modes Under Different Level of Workload and fNIRS Sensitivity

This paper aims to deeper study the relations between cognitive control and mental workload. Indeed, cognitive control is a contemporary concept in neuroscience and cognitive ergonomics, that can explain the metacognition carried out by operators in …

Mirror Neurons as a Potential Confounder in Thought-Based Device Control Using Brain Computer Interfaces with fNIRS

Brain Computer Interfaces (BCI) have so far been used primarily in the medical context. The question arises whether an interface between brain and user device could be established as an innovative technology in everyday life and which potential …

Self-health monitoring and wearable neurotechnologies

Brain-computer interfaces and wearable neurotechnologies are now used to measure real-time neural and physiologic signals from the human body and hold immense potential for advancements in medical diagnostics, prevention, and intervention. Given the …

Explore the Brain Activity during Translation and Interpreting Using Functional Near-Infrared Spectroscopy

Neurophysiological correlates of tDCS-induced modulation of cortical sensorimotor networks: A simultaneous fNIRS-EEG study

Transcranial direct current stimulation (tDCS) is a noninvasive and portable brain stimulation technique that is ideally suited to augment human brain performance in everyday settings. The aim of this study was to measure and model the time course of …

Using noninvasive methods to drive brain-computer interface (BCI): The role of electroencephalography and functional near-infrared spectroscopy in BCI

The success of brain-computer interfaces (BCI) systems is largely dependent on the ability to record and interpret clear neurophysiological signals invasively or noninvasively through the scalp and skull. In particular, two noninvasive techniques of …

Investigation of frontal lobe activation with fNIRS and systemic changes during video gaming

Frontal lobe activation caused by tasks such as videogames can be investigated using multichannel near-infrared spectroscopy (fNIRS), sometimes called optical topography. The aims of this study are to investigate the effects of video gaming (fighting …

NIRS measurements with elite speed skaters: Comparison between the ice rink and the laboratory

Wearable, wireless near-infrared (NIR) spectrometers were used to compare changes in on-ice short-track skating race simulations over 1,500 m with a 3-min cycle ergometry test at constant power output (400 W). The subjects were six male elite …

Saturation of hemoglobin in intracranial arteries is similar in patients with hemodynamically relevant and irrelevant stenosis of the internal carotid artery

The aim of this study was to establish if patients with hemodynamically relevant or irrelevant stenoses of the extracranial internal carotid artery have different intracranial arterial oxygen saturation as measured by transcranial pulse oximetry …

New methods for monitoring cerebral oxygenation and hemodynamics in patients with subarachnoid hemorrhage

Radiographic cerebral vasospasm (CVS) after subarachnoid hemorrhage (SAH) do not reflect cerebral hemodynamics and oxygenation and may occur in the absence of clinical deficit and vice-versa. This report is to describe preliminary findings in further …