Complex Images Used in Visual Perception Experiments (image) University of Tokyo Share Print E-Mail Caption Any two of these images would flash briefly onscreen some unpredictable time after volunteers pushed a button to start visual perception test performed by researchers at the University of Tokyo. Viewers had to identify both the light intensity (white or black color) and the orientation of the image (left or right diagonal lines). Credit Nakayama and Motoyoshi 2019, originally published in The Journal of Neuroscience. DOI: 10.1523/JNEUROSCI.2494-18.2019 Usage Restrictions CC-BY-ND Nakayama and Motoyoshi 2019, originally published in The Journal of Neuroscience. DOI: 10.1523/JNEUROSCI.2494-18.2019 Share Print E-Mail 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.