Results 81 to 90 of about 1,748,185 (181)

Research on the combination of color channels in heart rate measurement based on photoplethysmography imaging. [PDF]

J Biomed Opt, 2021
Ryu J, Hong S, Liang S, Pak S, Chen Q, Yan S.   +5 more
europepmc   +1 more source

Psychophysiological indicators of emotional arousal in sexual assault survivors: Evaluating ANS reactivity to therapeutic COPE cards within the SEE FAR CBT framework for PTSD treatment

Psychology and Psychotherapy: Theory, Research and Practice, EarlyView.
Abstract Objective SEE FAR CBT is an integrative treatment protocol for PTSD and anxiety disorders, utilizing imagery‐based (fantastic reality) methods through associative therapeutic COPE cards. Although preliminary evidence suggests potential impacts, further validation is necessary to confirm their efficacy in eliciting specific arousal‐affective ...
Sivan Raz, Noa Burchis, Mooli Lahad
wiley   +1 more source

No evidence of higher peak heat tolerance in the afternoon or with opportunity for thermal behaviour during low‐intensity work in uncompensable heat

Experimental Physiology, EarlyView.
Abstract Heat tolerance is known to be limited by high brain temperature, but most findings pertain to strenuous exercise following artificially altered baseline temperature or with limited opportunity for behaviour. Therefore, we investigated the hypotheses that thermal perceptions, hyperventilation and cerebrovascular responses would be exacerbated ...
Tiarna Stothers, Travis Dylan Gibbons, Kate Nicole Thomas, Emma Jones, Holly Ann Campbell, James David Cotter   +5 more
wiley   +1 more source

Innovative measurement of routine physiological variables (heart rate, respiratory rate and oxygen saturation) using a remote photoplethysmography imaging system: a prospective comparative trial protocol. [PDF]

BMJ Open, 2021
Allado E, Poussel M, Moussu A, Saunier V, Bernard Y, Albuisson E, Chenuel B.   +6 more
europepmc   +1 more source

Cerebral haemodynamic responses to inspiratory muscle work

Experimental Physiology, EarlyView.
Abstract Fatiguing inspiratory work has been shown to evoke a sympathetically mediated reflex that has systemic cardiovascular consequences, including increases in heart rate and blood pressure and a decrease in resting limb vascular conductance. Moreover, the response to this reflex appears to be attenuated in females compared with males.
Andrew H. Ramsook, Morgan A. Hughes, Wyatt W. Pruter, Kevin L. Webb, Ali Ataie, Chad C. Wiggins, Gabrielle A. Dillon, Sarah E. Baker, Michael J. Joyner   +8 more
wiley   +1 more source

Study of blood vessels reaction to local heating by imaging photoplethysmography

Научно-технический вестник информационных технологий, механики и оптики
The possibility of using a new contactless method of imaging photoplethysmography to assess thermoregulatory vasodilatation of blood vessels was studied. Perfusion reaction in a region of the outer forearm in response to local heating up to 41 ± 1 °C was
A. V. Belaventseva, N. P. Podolyan, M. A. Volynsky, V. V. Zaytsev, A. V. Sakovskaia, O. V. Mamontov, R. V. Romashko, A. A. Kamshilin   +7 more
doaj   +1 more source

Carotid artery dissection linked to intermittent apnoeic swimming: A case–control study

Experimental Physiology, EarlyView.
Abstract Internal carotid artery (ICA) dissection is a rare and potentially devastating cause of cerebral ischaemia, initiated by an intimal tear or rupture of the vasa vasorum, that can lead to an intraluminal thrombus, vascular stenosis, occlusion, or dissecting aneurysm formation.
Damian M. Bailey, Richard G. Davies, Brenig L. Gwilym, Benjamin S. Stacey, Danny Walmsley, Michael H. Lewis, Josip Butkovic, Ivan Mumlek, Brad Perry, Zvonomir Vrselja, Shigehiko Ogoh, James A. Pawelczyk, Mohamad Bashir, Richard D. White, Ian M. Williams   +14 more
wiley   +1 more source

Whole‐body hot water immersion effect on cerebral haemodynamics and subsequent cerebrovascular reactivity to carbon dioxide

Experimental Physiology, EarlyView.
Abstract To test the hypothesis that hot water immersion (HWI) improves cerebrovascular function via shear‐mediated mechanisms, this study determined cerebrovascular reactivity to carbon dioxide (CVRCO2${\mathrm{CV}}{{\mathrm{R}}_{{\mathrm{C}}{{\mathrm{O}}_2}}}$) before and after 60 min of 39°C HWI and a 21°C air control (CON) in 15 healthy ...
Samuel F. Leaney, Ester Tommasini, Guto W. Hughes, Alison M. Shepherd, Nyah D. Kingdon, Justin S. Lawley, Geoff B. Coombs, Jonathan P. Moore, Samuel J. Oliver   +8 more
wiley   +1 more source

Imaging ligands targeting glypican-3 receptor expression in hepatocellular carcinoma

, 2022
Hepatocellular carcinoma (HCC) is the third leading cause of cancer mortality. Early detection of HCC is important since potentially curative therapies exist in the initial stages of HCC; no curative therapies exist for late-stage HCC.
Zheng, David X., Zheng, Qi-Huang, Grega, Shaun D.   +2 more
core   +1 more source

Enhancing Fiducial Point Detection in Imaging Photoplethysmography Through Spatial Fusion

Current Directions in Biomedical Engineering
Imaging photoplethysmography (iPPG) enables contactless assessment of blood volume changes but is susceptible to noise, particularly under impaired perfusion.
Tauber Samuel, Wiede Christian, Wichum Felix, Seidl Karsten   +3 more
doaj   +1 more source