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Providing Feedback to Subjects

Ideally we would like to provide feedback to the subject in the MRI scanner via a web interface. This would allow the researcher to open a web browser and move the browser onto a monitor visible by the subject in the scanner. One convenient toolbox for doing this is jsPsych. We have integrated jsPsych into our project and provide a demo using the DecNef style colored circle feedback.

Using jsPsych

The source code components of jsPsych live in the web/ directory. File web/jsPsychFeedback.html is the main file that will be edited to adjust the type of feedback displayed. The creating a new draw method different types of feedback can be created.

Running the Demo

  1. The projectServer must be started with --remoteSubject options enabled to allow the feedback webpage to connect and receive results from the projectServer.

    • conda activate rtcloud
    • bash ./scripts/run-projectInterface.sh --test -p sample --subjectRemote

  2. Connect a web browser to the main page

    • http://localhost:8888/
    • Enter 'test' for both the usnername and password since we are running it in unsecure test mode.

  3. Connect a web browser to the jsPsych feedback page

  4. Click the 'Run' button on the main page and view the subject feedback shown on the jsPsych page