Figure 3a from Zhu et al. (IMAGE) PNAS Nexus Caption Hippocampal dorsal CA1 pyramidal neuron activity was captured using a head-mounted miniaturized endoscope. Contours of five cells are overlayed on the maximum projected image from a 10-minute recording; their associated fluorescence traces are shown below. Credit Zhu et al. Usage Restrictions None License Original 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.