Food Visual Stimuli (IMAGE) Max-Planck-Gesellschaft Caption Just seeing it creates an appetite: Such images generate the feeling of hunger due to the hormone ghrelin, which is released in greater amounts through visual stimuli. Credit Max Planck Institute of Psychiatry Usage Restrictions None 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.