Results 11 to 20 of about 1,871 (134)

Comprehensive Mitigation of Peripheral and Central Stress Responses by Nx4: Insights From EEG and Heart Rate Variability in Post-Stress Resting State. [PDF]

open access: yesHum Psychopharmacol
ABSTRACT Objective Stress from daily psychosocial challenges is a significant health concern with limited pharmacological treatment options. Psychosocial stress triggers distinct responses in the autonomic and central nervous systems, measurable via heart rate variability (HRV) and electroencephalogram (EEG).
Krylova M   +10 more
europepmc   +2 more sources

Using imaging photoplethysmography for heart rate estimation in non-human primates. [PDF]

open access: yesPLoS ONE, 2018
For humans and for non-human primates heart rate is a reliable indicator of an individual's current physiological state, with applications ranging from health checks to experimental studies of cognitive and emotional state.
Anton M Unakafov   +5 more
doaj   +1 more source

Optimization of Signal Processing Parameters in Psychophysiological Studies on the Example of GSR and PPG

open access: yesЭкспериментальная психология, 2023
When analyzing physiological signals, the problem of setting data processing parameters arises due to the blurring of the boundary between signal and noise properties, as well as the fundamental lack of objective criteria for the quality of ...
D.G. Malakhov   +6 more
doaj   +1 more source

A Review of Atrial Fibrillation Detection Methods as a Service [PDF]

open access: yes, 2020
Atrial Fibrillation (AF) is a common heart arrhythmia that often goes undetected, and even if it is detected, managing the condition may be challenging. In this paper, we review how the RR interval and Electrocardiogram (ECG) signals, incorporated into a
Acharya, U. Rajendra   +2 more
core   +1 more source

Improved physiological noise regression in fNIRS: a multimodal extension of the General Linear Model using temporally embedded Canonical Correlation Analysis [PDF]

open access: yes, 2020
For the robust estimation of evoked brain activity from functional Near-Infrared Spectroscopy (fNIRS) signals, it is crucial to reduce nuisance signals from systemic physiology and motion.
Boas, David A.   +4 more
core   +1 more source

Clinical evaluation of stretchable and wearable inkjet-printed strain gauge sensor for respiratory rate monitoring at different body postures [PDF]

open access: yes, 2020
Respiratory rate (RR) is a vital sign with continuous, convenient, and accurate measurement which is difficult and still under investigation. The present study investigates and evaluates a stretchable and wearable inkjet-printed strain gauge sensor (IJP)
Al-Ghussain, Loiy   +5 more
core   +3 more sources

Visual Attention, Mental Stress and Gender: A Study Using Physiological Signals

open access: yesIEEE Access, 2020
The relationship between visual attention and stress is a long-standing question in cognitive science. There are few studies which indicate improvement in visual attention under stress while few other studies suggest that stress affect visual attention ...
Abdul Momin   +3 more
doaj   +1 more source

An Empirical Study Comparing Unobtrusive Physiological Sensors for Stress Detection in Computer Work. [PDF]

open access: yes, 2019
Several unobtrusive sensors have been tested in studies to capture physiological reactions to stress in workplace settings. Lab studies tend to focus on assessing sensors during a specific computer task, while in situ studies tend to offer a generalized ...
Akbar, Fatema   +3 more
core   +2 more sources

Methods and systems for extracting venous pulsation and respiratory information from photoplethysmographs [PDF]

open access: yes, 2019
A system and method for separating a venous component and an arterial component from a red signal and an infrared signal of a PPG sensor is provided.
Nourani, Mehrdad, Yousefi, Rasoul
core   +1 more source

Detection of atrial fibrillation episodes in long-term heart rhythm signals using a support vector machine [PDF]

open access: yes, 2020
Atrial fibrillation (AF) is a serious heart arrhythmia leading to a significant increase of the risk for occurrence of ischemic stroke. Clinically, the AF episode is recognized in an electrocardiogram.
Czabanski, Robert   +9 more
core   +1 more source

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