E-Prime® Extensions for Tobii Pro

The latest E-Prime Extensions for Tobii Pro 3.2 combines the power of E-Prime with Tobii Pro eye trackers and Tobii Pro Lab. A simplified 2 in 1 solution enables running sophisticated eye tracking experiments using E-Prime's powerful experimental design and stimulus presentation features while processing the raw gaze data in Pro Lab.


Extending research possibilities

E-Prime 3 and E-Prime Extensions for Tobii Pro 3.2 can be used in two ways with our products.

In combination with:

  • our screen-based Tobii Pro eye trackers for recording raw eye tracking data with E-Prime
  • Tobii Pro Lab (version 1.111 or higher) which offers a simplified 2 in 1 solution for recording raw eye tracking data with Pro Lab and the possibility to replay and visualize gaze data, apply fixation filters and calculate meaningful AOI gaze data metrics.


Simplified 2 in 1 solution

Pro Lab and E-Prime Extensions 3.2 together offer a simplified solution to combine Pro Lab and E-Prime from PST.

The 2 in 1 solution enables researchers to process the raw gaze data in Pro Lab with dedicated gaze data analysis tools while using E-Prime's powerful design and stimulus presentation features for the creation of sophisticated eye tracking experiments (including gaze-contingency).

Among other things, E-Prime features programmable experiments, precise stimulus timing, and integration with various data sources, such as response boxes and EEG devices. E-Prime Extensions is intended for research use only.

E-Prime Extensions for Tobii Pro

Seamless E-Prime® integration

  • Simplified setup: one-computer solution running both Pro Lab and E-Prime without timing constraints (two-computer solution optional)
  • New External presenter project type in Pro Lab enables recording of the E-Prime stimulus presentation and eye tracking data
  • Stimulus onset events and media files containing AOIs and associated tags are transferred from E-Prime to Pro Lab and automatically generated in Pro Lab
  • Transfer of response and custom events that can be used for Times of Interest (TOI) creation

In Tobii Pro Lab:

  • Replay stimulus presentation sessions with gaze data in Pro Lab
  • Apply fixation filters to raw data
  • Create visualizations of the recorded gaze data and calculate meaningful gaze data metrics in Pro Lab

In E-Prime Extensions 3.2:

  • Complete of all communication with Pro Lab from E-Prime directly:
    • Perform calibration (regular, manual, infant)
    • Start and stop recording
    • Send media files with specified AOIs and Tags
    • Send stimulus and response events
    • Send custom events for Times of Interest (TOI) creation
  • Auto-detect Tobii Pro eye tracker within E-Prime
  • Give feedback based on gaze behaviors
  • Create interactive and passive eye tracking paradigms with gaze-contingent functionalities

Comprehensive software package

E-Prime and E-Prime Extensions (EET) can be purchased through our team. The E-Prime Extensions software package includes:

  • E-Prime Extensions
  • A library of sample paradigms for learning and paradigm adaptation
  • E-Prime support and Tobii Pro hardware support.

E-Prime Extensions for Tobii Pro 3.2 is a free update for E-Prime Extensions for Tobii Pro 3.x users. You can download the update after logging into E-Prime’s support site and navigating to the "Downloads" area.

If you are not a user of E-Prime Extensions for Tobii Pro 3.x, please contact our sales team. 

System Requirements

Software system requirements

For E-Prime and E-Prime Extensions system requirements, please refer to Psychology Software Tools, Inc.

For one-computer setup, running E-Prime 3 with E-Prime Extensions 3.2 and Pro Lab on the same computer, and Pro Lab requirements in two-computer setups, please refer to the Tobii Pro system recommendations.

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