Imaging neural activity in singing flies (VIDEO) Howard Hughes Medical Institute This video is under embargo. Please login to access this video. Caption Using a combination recording device and microscope, researchers can image the neural activity in the fly’s nerve cord while the insect sings. This video shows an example trial of calcium imaging of dPR1 neurons. Top left: a bottom view of the fly. The left side of the image corresponds to the right side of the fly. Bottom left: the microphone signal for the right wing. Top right: raw fluorescent signals averaged across z-planes. The left side of the image corresponds to the left side of the ventral nerve cord. Bottom right: schematic of the imaged volume. Red boxes represent the timing of optogenetic stimulation. Optogenetic stimulation acutely increased calcium signals of dPR1 neurons as well as the amount of song, consistent with a role of dPR1 in song production. Credit Shiozaki et al. DOI: 10.1101/2022.12.14.520499 Usage Restrictions Please use credit provided. 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.