EEG Scan (IMAGE) University of Arizona Caption The presence of an N400 wave even in those cases where the participants reported not recognizing the shape of an object suggests their brain did recognize a shape, but didn't forward the information to the conscious level. Credit Jay Sanguinetti Usage Restrictions This visual may only be used in conjunction with reporting/posting of this news release. Image/video credit must be included exactly as indicated. 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.