Correlation of EEG biomarkers of cannabis with measured driving impairment.

Conclusions: These results, combined with our prior reported results, suggest that EEG and electrocardiogram (ECG) acquired concurrent with neuropsychological tests hold potential to provide a highly sensitive, specific, and dose-dependent profile of cannabis intoxication and level of impairment. PMID: 31674856 [PubMed - as supplied by publisher]
Source: Traffic Injury Prevention - Category: Accident Prevention Authors: Tags: Traffic Inj Prev Source Type: research

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Publication date: Available online 20 January 2020Source: Materials Today: ProceedingsAuthor(s): I.A. Malbakhova, A.I. Titkov, N.F. Uvarov, A.S. UlihinAbstractNanocomposite electrode materials composed of graphite, Ag and AgCl were prepared by impregnation of graphite with a suspension of silver nanoparticles followed by anodizing in hydrochloric acid to obtain a layer of silver chloride on the surface of the nanoparticles. Silver nanoparticles were synthesized by the reduction of silver salts in benzyl alcohol. It was shown that the mass fraction of 1% Ag in the nanocomposite is optimal for creating a uniform coating of c...
Source: Materials Today: Proceedings - Category: Materials Science Source Type: research
The human and dog have sinus arrhythmia; however, the beat-to-beat interval changes were hypothesized to be different. Geometric analyses (R-R interval tachograms, dynamic Poincaré plots) to examine rate changes on a beat-to-beat basis were analyzed along with time and frequency domain heart rate variability from 40 human and 130 canine 24-hour electrocardiographic recordings. Humans had bell-shaped beat-interval distributions, narrow interval bands across time with continuous interval change and linear changes in rate. In contrast, dogs had skewed nonsingular beat distributions, wide interval bands {despite faster ...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
Background: Ascent to altitude increases the prevalence of arrhythmogenesis in low-altitude dwelling populations (Lowlanders). High altitude populations (i.e., Nepalese Sherpa) may have arrhythmias resistant adaptations that prevent arrhythmogenesis at altitude, though this has not been documented in other High altitude groups, including those diagnosed with chronic mountain sickness (CMS). We investigated whether healthy (CMS-) and CMS afflicted (CMS +) Andeans exhibit cardiac arrhythmias under acute apneic stress at altitude.Methods and Results: Electrocardiograms (lead II) were collected in CMS- (N = 9), CMS + (N = 8), ...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
Publication date: Available online 20 January 2020Source: Artificial Intelligence in MedicineAuthor(s): Oh Shu Lih, V Jahmunah, Tan Ru San, Edward J Ciaccio, Toshitaka Yamakawa, Masayuki Tanabe, Makiko Kobayashi, Oliver Faust, U Rajendra AcharyaAbstractCardiovascular disease (CVD) is the leading cause of death worldwide, and coronary artery disease (CAD) is a major contributor. Early-stage CAD can progress if undiagnosed and left untreated, leading to myocardial infarction (MI) that may induce irreversible heart muscle damage, resulting in heart chamber remodeling and eventual congestive heart failure (CHF). Electrocardiog...
Source: Artificial Intelligence in Medicine - Category: Bioinformatics Source Type: research
Most patients with diabetes still rely on finger-prick blood tests to measure their glucose levels. Some use wearable continuous glucose monitors, but even those typically require twice daily calibrations against the finger-prick method. It has been ...
Source: Medgadget - Category: Medical Devices Authors: Tags: Informatics Medicine Source Type: blogs
We describe the development, experimental evaluation, and comparison of the ECG signals obtained using our proposed approach and a gold standard medical device, through metrics that allow the evaluation of morphological similarities. Results point to a high correlation between the two evaluated setups, thus supporting the idea of meaningfully collecting ECG data along medical auscultation points with the proposed form factor. Moreover, this work has led us to conclude that for the studied population, signals acquired on focuses F1, F2, and F3 are usually highly correlated with leads V1 and V2 of the standard ECG medical recording procedure.
Source: IEEE Transactions on Biomedical Engineering - Category: Biomedical Engineering Source Type: research
Authors: Yoon D, Jang JH, Choi BJ, Kim TY, Han CH Abstract Biosignals like electrocardiogram or photoplethysmogram have been widely used for monitoring and determining status of patients. However, it has been recently discovered that more information than that we have used traditionally were included in the biosignals after artificial intelligence (AI) was applied. Most meaningful advancement of current AI was in deep learning. The deep learning-based models show the best performance in most area in current due to the distinguished characteristic that it is able to extract important features from raw data. For that...
Source: Korean Journal of Anesthesiology - Category: Anesthesiology Tags: Korean J Anesthesiol Source Type: research
Yoo Negative emotion is one reason why stress causes negative feedback. Therefore, many studies are being done to recognize negative emotions. However, emotion is difficult to classify because it is subjective and difficult to quantify. Moreover, emotion changes over time and is affected by mood. Therefore, we measured electrocardiogram (ECG), skin temperature (ST), and galvanic skin response (GSR) to detect objective indicators. We also compressed the features associated with emotion using a stacked auto-encoder (SAE). Finally, the compressed features and time information were used in training through long short-term...
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research
BackgroundThere is still an urgent clinical need to develop non-invasive diagnostic tests for early ischemic heart disease because, once angina occurs, it is too late. Hypocapnia has long been known to cause coronary artery vasoconstriction. Some new cardiology tests are accompanied by the claim that they must have potential diagnostic value if hypocapnia enhances their cardiac effects in healthy subjects. But no previous study has tested whether hypocapnia produces bigger cardiac effects in patients with angina than in healthy subjects.MethodsSevere hypocapnia (a PetCO2 level of 20 mmHg) lasting>15 min was mechanically...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
A smartwatch band with integrated electrodes to produce an electrocardiogram (ECG) might be able to help detect atrial fibrillation, but not as well as a traditional ECG machine used in a hospital, a recent study suggests.Reuters Health Information
Source: Medscape Medical News Headlines - Category: Consumer Health News Tags: Medscape Today News Source Type: news
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