Knowledge Base

Heart Beat Chart

The Heart Beat Chart shows the heart beats on a time line. It gives you an impression of the heart rate variability.

Heart rate and heart rate variability are subject to Post-processing. The heart rate peaks have a different color before and after post-processing.

To View The Heart Beat Chart

Click the Select window button in one of the visualization windows and select Vital Signs > Heart Beat Chart.

Export Heart Rate, Heart Rate Variability And Breathing Rate Data

Aim

To export the heart rate, heart rate variability and breathing rate data of your test participants to an Excel file or a text file to view them outside FaceReader or to import them into The Observer XT.

Prerequisites

• You have the Vital Signs Module.
• You selected Vital Signs analysis and export in the Settings.
• You carried out an analysis.

Procedure

1. Choose File > Export and select one of the three options.
   See Export the Data in FaceReader's Output
2. Browse to the folder in which you want to save the export files and click Select.
3. From the Log type drop-down list select the format of your log files, either Excel format or text. Choose Text files if you want to import the log files into The Observer XT.
4. Select Save detailed log and click OK.

Export Heart Beat Log

Aim

To export the inter-beat interval data (the time intervals between individual heart beats).

Prerequisites

• Your FaceReader license includes the Vital Signs Module.
• Vital signs analysis and export is switched on in the Settings.
  See Analyze Vital Signs
• You ran a video or camera analysis.

Procedure

1. From the File menu select Export and select one of the three available options.
2. Select the folder in which you want to save the log file.
3. Select Save heart beat log.

See Export Analysis Results in FaceReader's Output.

Vital Signs Data In The Observer XT

If you send FaceReader data to The Observer XT 13 or higher versions using the N-Linx network communication protocol, Vital Signs data are imported as external data. You can also manually import Vital Signs data. To be able to import Vital Signs data as external data you need the External Data Module of The Observer.

See FaceReader with The Observer XT

Please note that the data in the screen shot below come from a project in which the Heart rate variability period was set to one minute (the default is five minutes).

Source: FaceReader 10 Reference Manual (Help), Noldus Information Technology