Results 101 to 110 of about 6,571 (182)

Validity and Reliability of the Heart Rate Matching Task: A Novel Measure of Heart Rate Estimation

Psychophysiology, Volume 63, Issue 4, April 2026.
ABSTRACT Sensing and monitoring changes in our heart rate is a key aspect of interoception. We introduce and test the construct validity of the Heart Rate Matching task (HRM), a novel, fast and accessible task designed to assess the ability to estimate heart rate, in both remote (i.e., online) and in‐lab settings.
Jamie A. Moffatt, Markus R. Tünte, Mariana Von Mohr, Manos Tsakiris   +3 more
wiley   +1 more source

Remote photoplethysmography based on implicit living skin tissue segmentation [PDF]

2016 23rd International Conference on Pattern Recognition (ICPR), 2016
Region of interest selection is an essential part for remote photoplethysmography (rPPG) algorithms. Most of the time, face detection provided by a supervised learning of physical appearance features coupled with skin detection is used for region of interest selection.
Bobbia, Serge, Benezeth, Yannick, Dubois, Julien   +2 more
openaire   +2 more sources

High‐Performance Flexible Near‐Infrared Organic Light‐Emitting Diodes with a Heterogeneous Alloy Semitransparent Electrode

Advanced Materials, Volume 38, Issue 17, 20 March 2026.
This study presents a micro‐structured magnesium‐bismuth alloy electrode that enhances flexible NIR OLEDs. The electrode provides 40% broadband transmittance (400–1600 nm) and boosts light outcoupling efficiency (42.3%) and photoluminescence quantum yield (71.8%) through the Purcell effect in optical microcavities.
Mengxin Xu, Meina Han, Minying Xue, Shihao Liu, Yi Li, Gaoqiang Deng, Letian Zhang, Yuantao Zhang, Gang Cheng, Wenfa Xie, Chi‐Ming Che   +10 more
wiley   +1 more source

Fusion-Based Approach for Respiratory Rate Recognition From Facial Video Images

IEEE Access, 2020
The respiratory rate is an important vital parameter that provides information about persons' physical condition. In clinical practice it is currently only monitored using contact-based techniques, which can have negative effects on patients.
Marc-Andre Fiedler, Micha Rapczynski, Ayoub Al-Hamadi   +2 more
doaj   +1 more source

Photoplethysmography for Measuring Cognitive Load in XR Environments: A Systematic Review

Advanced Sensor Research, Volume 5, Issue 3, March 2026.
ABSTRACT Photoplethysmography (PPG) is a low‐cost, low‐power biosensing technology with growing applications in education, particularly for monitoring cognitive load in eXtended Reality (XR) learning environments. Measuring cognitive load is critical for preventing overload and optimising immersive learning, yet existing approaches such as self‐reports
Alya Alshehhi, Qammer H.Abbasi, Rami Ghannam   +2 more
wiley   +1 more source

Effects of Missing Data on Heart Rate Variability Measured From A Smartwatch: Exploratory Observational Study

JMIR Formative Research
BackgroundMeasuring heart rate variability (HRV) through wearable photoplethysmography sensors from smartwatches is gaining popularity for monitoring many health conditions.
Hope Davis-Wilson, Meghan Hegarty-Craver, Pooja Gaur, Matthew Boyce, Jonathan R Holt, Edward Preble, Randall Eckhoff, Lei Li, Howard Walls, David Dausch, Dorota Temple   +10 more
doaj   +1 more source

Wearable and Implantable Devices for Continuous Monitoring of Muscle Physiological Activity: A Review

Advanced Science, Volume 13, Issue 15, 13 March 2026.
Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao, Ata Golparvar, Mohammad Javad Bathaei, Filipe Arroyo Cardoso, Clementine M. Boutry   +4 more
wiley   +1 more source

Monitoring of Tissue Perfusion During Arterial Occlusion With Remote Photoplethysmographic Imaging

Journal of Biophotonics, Volume 19, Issue 3, March 2026.
This study evaluated remote photoplethysmography for tracking perfusion during arterial occlusion while assessing cuff pressure and placement. Similar local responses were observed across pressures and locations, supporting rPPG as a perfusion‐monitoring tool and establishing 150 mmHg lower‐arm occlusion as a standardized protocol.
Leah DeVos, Gennadi Saiko, Vanja Dvekar, Alexandre Douplik   +3 more
wiley   +1 more source

Remote Monitoring With a Reusable Device Upon Implementation on a Surgical Department (REQUEST Trial)

World Journal of Surgery, Volume 50, Issue 3, Page 676-683, March 2026.
Continuous monitoring of vital signs using wearable devices may improve early detection of postoperative complications and reduce nursing workload. Evidence from real‐world clinical implementation remains limited. This study aimed to answer the question: Does the implementation of wearable monitoring in surgical wards reduce nursing workload and is it ...
Ephrahim E. Jerry, Arthur R. A. Bouwman, Edith M. G. van Esch, Raoul Richardson, Simon W. Nienhuijs   +4 more
wiley   +1 more source

LieRHRV system for remote lie detection using heart rate variability parameters

Scientific Reports
The standard polygraph, or lie detector, is limited by its reliance on average heart rate, subjective examiner interpretation, and the need for direct subject contact.
Moran Davoodi, Nitay Aspis, Yael Drori, Ido Weiser-Bitoun, Yael Yaniv   +4 more
doaj   +1 more source