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Then, using a confocal microscope, the scientists filmed how the neurons reacted to changes in salt concentrations.

In studies where they used a confocal microscope to watch myelin form in live zebra fish, researchers in David Lyons’s lab at the University of Edinburgh and in Bruce Appel’s lab at the University of Colorado Denver observed that when the release of small sacs containing neurotransmitters from axons is inhibited, often the first few wraps of myelin slip off, and the oligodendrocyte aborts the entire process.

A researcher uses a confocal microscope equipped for super-resolution and fluorescence imaging at the University of Bristol, UK.Credit:

Researchers at Pablo de Olavide University in Spain created this time lapse of a developing fruit fly larva under a confocal microscope, each cell illuminated by a fluorescent protein.

In one room, a laser confocal microscope causes delicate structures—like the multifaceted eyes of a fly, now splashed from the scope onto an adjacent monitor—to fluoresce.