A Little Stress for a Fetus Goes


They used well-established optical techniques to measure the cell’s electrical activity by injecting a fluorescent dye that changes fluorescence depending on the calcium levels in a cell. Calcium tends to increase when a cell fires an action potential, so monitoring the change in fluorescence let them see the activity in the neurons of interest. To get the dye into those neurons, it was linked to a sugar molecule that tends to be transported along axons to the cell body, and so the long axons of the Mauthner cells and their homologs – which extend all the way down the spinal cord – conveniently took up the dye and labeled the cell bodies in the hind brain.

Cite this paper

@inproceedings{Tytell2009ALS, title={A Little Stress for a Fetus Goes}, author={Eric D Tytell}, year={2009} }