Eye Tracking experiments with Tobii Pro Spectrum

Environments

• Python 3.6
• Psychopy 3.0

Features of the Experiments

• Switch the image whether you gaze left side or right side of the screen - eyes_move_with_you.py
• Trace your eyes - trace_eyes.py
• Indicate where you are looking on the backgroud image - show_where_you_look.py
• Turn to the gray scale from RGB where you are looking on the background image - gaze_to_gray.py
• Create Gaze-Contingent-Display(GCD) with synthesizing high/low resolution images - gcd_for_image_blur.py
• Create GCD for text stimilus - gcd_for_text.py
• Create GCD for tree structure of text - gcd_for_tree.py
• Create GCD for ImageNet datasets to search one class from several classes in the display - gcd_for_inet_ciecle.py, gcd_for_inet_square.py

Usage

1. Clone this reopsitory

$ git clone https://github.com/Tiger-0512/tobii-experiments.git

2. Create conda environment

$ cd tobii-experiments
$ curl https://raw.githubusercontent.com/psychopy/psychopy/master/conda/psychopy-env.yml > psychopy-env.yml
$ conda env create -n psychopy -f psychopy-env.yml

Check this page for more information.

3. Run Psychopy

$ conda activate psychopy
$ psychopy

4. Save Eye Tracker Calibration Data

You can use Tobii Pro Eye Tracker Manager for the calibration.

Once you calibrate subject's eyes, the parameter is saved in the eye tracker internally.

5. Execute the experiments

In PsychoPy editor, select the experiment in this repo and the run it.

6. Analyze the eyes' movements(optional)

Run ./tools/gaze_analyzer.py to draw the eyes' tracing

Notice

Any sampling rate is OK when you calibrate subject's eyes.