نتایج جستجو برای: photoplethysmography
تعداد نتایج: 1059 فیلتر نتایج به سال:
Photoplethysmography is an optical technique that produces a wealth of information about cardiovascular health. Therefore, the technology has become integral part personal health monitoring devices. Given importance blood pressure measurement and control in physical mental health, recent years, estimation from photoplethysmography been active area research with promising results. Most studies o...
We propose AttentiveLearner, a multimodal mobile learning system for MOOCs running on unmodified smartphones. AttentiveLearner uses both the front and back cameras of a smartphone as two complementary and fine-grained feedback channels in real time: the back camera monitors learners’ photoplethysmography (PPG) signals and the front camera tracks their facial expressions during MOOC learning. At...
This study examined the impact of state anxiety, trait anxiety, and anxiety sensitivity on physiological and self-report measures of sexual arousal and sexual function in a non-clinical sample of women. Physiological sexual responses to an erotic stimulus were assessed using vaginal photoplethysmography, and subjective reactions were measured using questionnaires. Results suggested a curvilinea...
The continuous cuffless arterial blood pressure (ABP) can be calculated by the pulse transit velocity. Its accuracy is significantly influenced by the selection of the photoplethysmography (PPG) feature points. In this paper, we designed an assessment function to calculate the quality of PPG. The quality index indicates the reliability of PPG and helps to determine proper feature points. Kalman...
To increase a user's satisfaction level when using an entertainment system it is extremely interesting that this system has the ability to obtain feedback from the user in real time. The emotional state of an individual is able to change his physiological systems behaviour. This paper proposes to analyze a physiological signal obtained through the photoplethysmography. The signal is collected u...
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