DeToX

DeToX (Developmental Tobii Experiment) is a user-friendly Python wrapper for the tobii-researcher library. It is designed to simplify the integration of Tobii eye-tracking hardware with PsychoPy, particularly for conducting developmental studies involving infants. By streamlining the process of data collection, DeToX aims to enhance the efficiency of developmental eye-tracking experiments.

Quick Install

pip install dvst-detox

or for the latest version:

pip install git+https://github.com/DevStart-Hub/DeToX.git

_{Coming soon to PyPI for even easier installation!}

Why We Built DeToX

While the official Tobii SDK provides powerful features, we found it could be complex for routine research tasks. DeToX bridges this gap by offering a straightforward approach to eye-tracking data collection.

We don't aim to be the most feature-rich package - we built exactly what we needed for our infant-friendly studies: a simple, well-documented tool that just works

This project didn't start from scratch—it builds upon an existing repository that we have used in the past: psychopy_tobii_infant

While the eye-tracking landscape offers many tools—from PsychoPy's built-in Tobii integration to comprehensive packages like Titta—DeToX carves out its own niche through thoughtful simplicity. We've prioritized clarity and ease-of-use without sacrificing the flexibility researchers need. When your codebase is straightforward and well-documented, it becomes a platform for innovation rather than an obstacle to overcome.

Key Features

• Simple Data Recording: Start and stop eye-tracking recordings with just one line of code. Collect gaze data, pupil measurements, and timestamped events automatically during your experiments.

• HDF5 Data Storage: Save data in analysis-ready HDF5 format with events embedded directly in the gaze timeline for easy analysis, while preserving raw event data in a separate table for advanced processing. Includes comprehensive metadata like screen dimensions, framerate, and recording settings.

• Infant-Friendly Calibration: Engage infants with animated calibration stimuli featuring zoom and trill effects. Use colorful, attention-getting images with optional sound feedback for better participant engagement.

• Calibration Management: Save and load calibration files to reuse participant calibrations across multiple sessions.

• Simulation Mode: Test your experiments using mouse input as a gaze proxy when hardware isn't available. Perfect for development, debugging, and pilot studies without requiring physical eye trackers.

• Gaze-Contingent Support: Real-time gaze processing for interactive paradigms with configurable smoothing windows. Extract gaze positions using median, mean, or last-sample methods for different latency/accuracy trade-offs.

Learn More

We believe good software requires great documentation. Explore our comprehensive guides and examples:

📚 DeToX Documentation (coming soon)

Questions or found a bug? Let us know by creating an issue or starting a discussion here on GitHub!