Employing cardiac and respiratory features extracted from fNIRS signals for mental workload classification

Functional Near-Infrared Spectroscopy (fNIRS) is gaining popularity in detection and classification of cognitive and emotional states. In addition to hemodynamic responses arising from functional activity changes in the brain areas of interest, fNIRS …

fNIRS signal quality estimation by means of a machine learning algorithm trained on morphological and temporal features

Functional near infrared spectroscopy (fNIRS) is used for brain hemodynamic assessment. Cortical hemodynamics are reliably estimated when the recorded signal has a sufficient quality. This is acquired when fNIRS optodes have proper scalp coupling. A …

Measurement of exercise treatment effect from pelvic floor muscle therapy for lower urinary tract dysfunction using near infrared spectroscopy

Background: In sports medicine, near infrared spectroscopy (NIRS) is used to measure physiologic parameters of muscle function, and quantify the effects of exercise. Firstline treatment for urinary incontinence (UI) involves pelvic floor muscle (PFM) …

Investigating the Utility of fNIRS to Assess Mental Workload in a Simulated Helicopter Environment

Functional near-infrared spectroscopy (fNIRS) has been used with moderate success in many passive brain-computer interface applications. Much of this recent work has been focused on differentiating between various states shortly following discrete …

Non-invasive assessment of ribcage inspiratory muscle fatigue during two endurance tests in healthy subjects

Introduction: Fatigue is defined as a loss in the capacity for developing force and/or velocity of a muscle which is reversible by rest. The aim was to evaluate non-invasively the fatigue and recovery of the inspiratory ribcage muscles during two …

Brain activation in virtual reality for attention guidance

Virtual Reality (VR) not only offers great opportunities in terms of entertainment, it is also widely applicable in the field of attention guidance, medicine and psychology. The distinction between VR and ordinary media is the 360$$^∘ $$ - also known …

Simultaneous functional near infrared spectroscopy of the brain and bladder

Background: Worldwide 2.3 billion individuals are affected by bladder disease. The current evaluative test is invasive, associated with complications and often declined. Non-invasive evaluation of bladder hemodynamics using continuouswave …

The Role of Cue Utilization during a Simulated Driving Scenario

The present study was designed to establish whether a cue-based assessment of driving could predict cognitive load and performance during a simulated driving task. Following an assessment of cue utilization in the domain of driving, participants …

An overview of the feasibility of permanent, real-time, unobtrusive stress measurement with current wearables

Negative consequences of stress are a pervasive problem in our modern society. Recent developments in wearable lifestyle hardware have led to unobtrusive, sensor-packed, always-on devices that might finally be able to continuously monitor biosignals …

FNIRS and neurocinematics

In the overlap between Human-Computer Interaction (HCI) and Cinematics, sits an interest in physiological responses to experiences. Focusing particularly on brain data, Neurocinematics has emerged as a research field using Brain-Computer Interface …

Neurophysiological Variations in Food Decision-Making within Virtual and Real Environments

Simple lifestyle changes such as improving one's diet and getting sufficient exercise could significantly reduce the risk of developing obesity and related diseases such as diabetes, heart disease, stroke, and cancer. However, changing eating …

Evaluation of cortical neuroexcitation in urinary urgency using simultaneous near infrared spectroscopy of the brain and bladder with quantification of sensation

© 2019 SPIE Background: Overactivity of the bladder (OAB) affects 20% of people globally, causing urgency to void and incontinence of urine (UI)). OAB has a multi-factorial causation. Problematically current tests are invasive and provide limited …

Functional near infrared spectroscopy (fNIRS) in pigmented subjects: a maneuver to confirm sufficient transcutaneous photon transmission for measurement of hemodynamic change in the anterior cortex

© 2019 SPIE Background: A requisite for fNIRS studies of cortical blood flow is that sufficient photons are transmitted transcutaneously for the fluctuations in cerebral hemoglobin oxygenation that occur during neuronal activation to be detected. …

The research of the spectrophotometric method for the objective control of the auditory sense

One of the important tendencies of current clinical audiology is objectivization of hearing assessment. The presence of sensory perception is determined by neuronal activation of a certain area of the cerebral cortex caused by appropriate stimuli. It …

A comparison of mental and visual load resulting from semi-automated and conventional forest forwarding: An experimental machine simulation study

The purpose of the present study was to extend the knowledge of functional linkages between visual and mental load, performance, and prefrontal cortex (PFC) activity, during forestry forwarding work. Eleven healthy participants, range 21–51 years …

The effect of priming exercise on muscular fatigue after an all-out protocol The effect of priming exercise on muscular fatigue after an all-out protocol University of Munich , Biomechanics in Sports

The effect of short time computer work on muscle oxygenation in presence of delayed onset muscle soreness

We aimed at investigating the effect of a short time low load repetitive task on the local muscle oxygenation kinetics in presence of delayed onset muscle soreness. Computer work was investigated as a model of low load repetitive task. Nine healthy …

Offspring of Mothers with Diabetes have Reduced Muscle Oxidative Capacity Measured by Near Infrared Spectroscopy

Optimization measurement of muscle oxygen saturation under isometric studies using FNIRS

Development of functional near infrared spectroscopy (fNIRS) technologies has advanced quantification signal using multiple wavelength and detector to investigate hemodynamic response in human muscle. These non-invasive technologies have been widely …

Is wireless functional near-infrared spectroscopy (fNIRS) 3D neuroimaging feasible to map human navigation in the real-world?

Real-time maps (with temporal and spatial resolution: 1–10 Hz and $∼$1 cm, respectively) of cortical activation can be obtained by functional near-infrared spectroscopy (fNIRS), which noninvasively measures cortical hemodynamic changes (as oxygenated …