naa a22 4500 510776817 CHVBK 20180411083233.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.3758/s13428-012-0277-y doi (NATIONALLICENCE)springer-10.3758/s13428-012-0277-y Electromagnetic tracking of motion in the proximity of computer generated graphical stimuli: A tutorial [Elektronische Daten] [Ulf Schnabel, Michael Hegenloh, Hermann Müller, Michael Zehetleitner] Electromagnetic motion-tracking systems have the advantage of capturing the tempo-spatial kinematics of movements independently of the visibility of the sensors. However, they are limited in that they cannot be used in the proximity of electromagnetic field sources, such as computer monitors. This prevents exploiting the tracking potential of the sensor system together with that of computer-generated visual stimulation. Here we present a solution for presenting computer-generated visual stimulation that does not distort the electromagnetic field required for precise motion tracking, by means of a back projection medium. In one experiment, we verify that cathode ray tube monitors, as well as thin-film-transistor monitors, distort electro-magnetic sensor signals even at a distance of 18cm. Our back projection medium, by contrast, leads to no distortion of the motion-tracking signals even when the sensor is touching the medium. This novel solution permits combining the advantages of electromagnetic motion tracking with computer-generated visual stimulation. Psychonomic Society, Inc., 2012 Electromagnetic motion-tracking nationallicence Back projection setup nationallicence Measurement accuracy nationallicence Experimental setup nationallicence Schnabel Ulf Ludwig-Maximilians-Universität München, Munich, Germany aut Hegenloh Michael Ludwig-Maximilians-Universität München, Munich, Germany aut Müller Hermann Ludwig-Maximilians-Universität München, Munich, Germany aut Zehetleitner Michael Ludwig-Maximilians-Universität München, Munich, Germany aut Behavior Research Methods Springer US; http://www.springer-ny.com 45/3(2013-09-01), 696-701 45:3<696 2013 45 13428 https://doi.org/10.3758/s13428-012-0277-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.3758/s13428-012-0277-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schnabel Ulf Ludwig-Maximilians-Universität München, Munich, Germany aut NATIONALLICENCE 700 1- Hegenloh Michael Ludwig-Maximilians-Universität München, Munich, Germany aut NATIONALLICENCE 700 1- Müller Hermann Ludwig-Maximilians-Universität München, Munich, Germany aut NATIONALLICENCE 700 1- Zehetleitner Michael Ludwig-Maximilians-Universität München, Munich, Germany aut NATIONALLICENCE 773 0- Behavior Research Methods Springer US; http://www.springer-ny.com 45/3(2013-09-01), 696-701 45:3<696 2013 45 13428 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer