gVARVI

A graphic utility for heart rate Variability Acquisition in Response to Visual stImuli

What is gVARVI?

gVARVI is an utility to retrieve heart rate data from heart rate sensors while some audiovisual stimuli is being played. Specifically gVARVI retrieves RR-data (time gap between two consecutive heart beats). It is simple an intuitive, with a clean graphic interface.

Multi protocol

gVARVI supports Polar iWL® and all ANT+ heart rate sensors (it was tested with Garmin Soft Strap Premium Heart Rate Monitor) and allows to user to automatically search available sensors.

"Activities"

You don't have to configure acquisition every time. You can manage your acquisition configurations (we call them "activities") and store them for future acquisitions.

Extremely simple

With a clean user interface that avoids any distraction. With multi language support (English and Spanish). No option is hidden behind complex menus. All of them are shown on the main window.

Debugging

For expert users, gVARVI offers three ways of debugging. Log files, graphic log console, and remote debugging (yes, you can debug gVARVI over the Internet).

Demo mode

Sometimes you only will want to test if your stimuli playing works well. With demo mode, you don't have to put on your heart rate sensor to test an acquisition.

Open source

You can redistribute gVARVI and/or modify it under the terms of the GPL license. Feel free to fork and improve it.

What you can do with gVARVI?

Docs and resources

Full Documentation

We provide you a detailed user manual for gVARVI application. Here we explain all gVARVI features, the available types of activity, the steps you must follow to install it and a complete operation guide.

User manual (.PDF)

Resources

If you want to try gVARVI and you don't want to spend some minutes creating an activity, download this file, and import it directly into gVARVI.

We propose you a "sound presentation" activity. The first tag of the activity was a relaxing sound and the second one was a scaring one. We also accompanied both sounds with images to increase each feeling. For example, relaxing sound was accompanied by a mix of beautiful landscapes, zen pictures, and people in relaxing poses. On the other hand, scary sound was accompanied by haunted houses, devilish dolls and people with scary faces. Sounds were about 3:30 minutes long and each sound had associated about 20 pictures, so each picture was 10 seconds long.

Activity file (.TAR)

Packages

For now, ubuntu/debian linux package is available at version 0.6. You can use it to install gVARVI with dpkg utility or other graphical tool such as Ubuntu Software Center, Muon or GDebi.

gVARVI package (.DEB)

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/

Feel free to colaborate on gVARVI development. Visit our GitHub repository here