Text and Data Mining valid from 2018-06-23
Received: 2 November 2017
Revised: 14 May 2018
Accepted: 12 June 2018
First Online: 23 June 2018
: RG is CEO and ML is an employee of Brain Innovation B.V., the company that makes the Turbo-Brainvoyager software used for the real-time fMRI analyses. The remaining authors declare no competing interests.