A fundamental goal of neuroscience is to understand the basic operations of the brain, and how they are affected by behavioral changes. More specifically, the ways in which neuronal activity is it related to the cognitive and behavioral processes? Since its development, optical microscopy has always been an instrument of choice to study the cellular properties of the brain. Coupled with many fluorescent probes available, it elucidates issues neuroscience, both structurally and functionally. Doric Lenses, Inc.