Before you begin ...

About this survey

This short experiment explores a possible "time-reversed interference" effect.

It takes about 10 minutes. 

Anyone who can read these instructions and use a keyboard is welcome to participate.

Only your IP address (general location) and reaction time data are stored.

This study was approved by the Institutional Review Board (IRB) of the Institute of Noetic Sciences.

Approval #Radd_2022_02

To contact the Chair of the IRB, write to

By continuing you confirm that you want to participate in this survey.

Contact information

Information about this study:

Contact email:

Important technical requirements for your computer

You seem to use the following browser (version number in brackets): unknown browser ( n/a )
You need to use a different browser for this study
Please use another browser. Use Chrome or Firefox

For this study, you need to have a real keyboard.

Important data protection information

When you start, this survey will store your answers, your internet address, and browser information on the PsyToolkit server.The responsibility for this survey rests entirely with the researcher(s) listed above. Click here if you do not want to participate now.