Citi, L and Klerman, EB and Brown, EN and Barbieri, R (2010) Point process Heart Rate Variability assessment during sleep deprivation. Computing in Cardiology, 37. pp. 721-724.
Citi, L and Klerman, EB and Brown, EN and Barbieri, R (2010) Point process Heart Rate Variability assessment during sleep deprivation. Computing in Cardiology, 37. pp. 721-724.
Citi, L and Klerman, EB and Brown, EN and Barbieri, R (2010) Point process Heart Rate Variability assessment during sleep deprivation. Computing in Cardiology, 37. pp. 721-724.
Abstract
To investigate the potential relationships between Heart Rate Variability (HRV) and objective performancesubjective alertness measures during sleep deprivation, a novel point process algorithm was applied to ECG data from healthy young subjects in a 52-hour Constant Routine protocol that includes sleep deprivation. Our algorithm is able to estimate the time-varying behavior of the HRV spectral indexes in an on-line instantaneous method. Results demonstrate the ability of our framework to provide high time-resolution sympatho-vagal dynamics as measured by spectral low frequency (LF) and high frequency (HF) power. Correlation analysis on individual subjects reveals a relevant correspondence between LF/HF and subjective alertness during the initial hours of sleep deprivation. At longer times awake, high correlation levels between LF/HF and objective performance indicate an increasing sympathetic drive as performance measures worsen. These results suggest that our point-process based HRV assessment could aid in real-time prediction of performance-alertness.
Item Type: | Article |
---|---|
Subjects: | Q Science > QA Mathematics > QA75 Electronic computers. Computer science R Medicine > R Medicine (General) |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Computer Science and Electronic Engineering, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 06 Mar 2014 11:09 |
Last Modified: | 30 Oct 2024 17:07 |
URI: | http://repository.essex.ac.uk/id/eprint/8805 |
Available files
Filename: 315.pdf