Experimental Setup (IMAGE) Max-Planck-Gesellschaft Caption This diagram shows the experimental set-up used by Max Planck researchers to examine how the human brain processes visual information. Initially, the subjects participating in the trial had to fix a cross on a screen. Then, they were presented with an image with randomly distributed pixels (random field of noise) for a duration of 500 ms. After that, a response screen displayed a question mark and subjects could indicate by pressing a button if they were able to recognize a symbol within the random field of noise. The same was repeated with screens, in which the hidden symbol became gradually more and more recognizable. As soon as the symbol had appeared fully and was clearly recognizable, the scientists presented the same screens in reverse order, showing each symbol fading gradually. Credit Max Planck Institute for Brain Research Usage Restrictions This image may only be used or reproduced for editorial purposes and in connection with scientific articles on our press material, in which case such usage or reproduction is free of charge and requires no permission. Any other use, in particular for commercial purposes, requires prior permission of the author or photographer. Further enquires can be answered in the Press and Public Relations Office - simply write an e-mail to gebhard@gv.mpg.de. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.