Visual Cortex (IMAGE) Salk Institute Caption Although they only account for a fraction of the synapses in the visual cortex, neurons in the thalamus (shown in red) get their message across loud and clear by simultaneously hitting the "send" button. Credit From Anatomography, website maintained by Life Science Databases(LSDB). Usage Restrictions News media reproduction to illustrate this story permitted with proper attribution as provided above. For one time use only. 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.