Tectum (image) Max-Planck-Gesellschaft Caption (A) A cell type in the tectum, made visible using a green fluorescent protein, highlights the layering of this visual centre. (B) The same cell type as in (A), but labeled with a calcium-sensitive protein. Credit Gabriel; Bollmann; modified from Neuron 76, 1147-1160 (2012). Usage Restrictions None 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.