Project

Project

The goal of ANS Lab Tools project is to share sofwares devoted to the study of electrophysiological variables under control of the autonomic nervous system, such as heart rate, blood pressure, skin conductance, ventilation or pupil size. The softwares we propose in this project allows you to study the activity (or reactivity) of autonomic, sympathetic and parasympathetic nervous systems.

 

HRVanalysis software has been used and improved for over 20 years and, thus, designed to meet laboratory requirements. Its main strength is its wide application scope. It allows calculating autonomic sympathetic and parasympathetic nervous systems indices using heart rate variability analysis methods, from the widest used to the more sophisticated.

HRVanalysis calculates most of the linear and nonlinear indices validated in the litterature : temporal, geometrical, frequencial, Fourier transform of the increment of RR intervals, Poincaré plot, empirical mode decomposition, moments, largest Lyapunov exponent, entropy, symbolic dynamics, fractals, acceleration and deceleration capacities, turbulence. In addition, the software allows time-frequency analysis using wavelet transform as well as analysis of autonomic nervous system status on surrounding scored events and on preselected labeled areas. Moreover, the interface is designed for easy study of large cohorts, including batch mode signal processing to avoid running repetitive operations.


HRVanalysis supports data arizing from cardiofrequencemeter, ECG-Holter, or data acquisition system (EDF, ISHNE, Binary, ...). The software includes various RR preprocessing functions such as RR correction, RR exclusion, user-entered areas of interest and events, HRV parameters preferences, etc...

HRVanalysis can be downloaded free of charge for none commercial use only. The software was developed using MATLAB® 2016a. It works on Windows 64-bit operating systems and it is not necessary to have MATLAB® installed on the computer. When using HRVanalysis to analyze data meant for publication, please cite the software reference article  and download website in the methods section and credit the authors of the software when referencing.