The technology could help scientists investigate how brain circuits generate behavior and how those circuits become disrupted in conditions such as Alzheimer’s disease, Parkinson’s disease and epilepsy. For decades, conventional two-photon microscopes have been regarded as the gold standard for imaging neurons in living brains. Some compact systems provide lower-resolution images, while others can record neural activity but cannot stimulate precisely selected cells. The resulting signals are collected to create detailed images of neural activity at the level of individual cells. Subject of Research: Miniature two-photon microscopy, optogenetics, neural circuits and brain activity during natural movementArticle Title: New Miniature Microscope Allows Scientists to Watch and Control Brain Cells During Natural MovementNews Publication Date: Aug. 11, 2026Web References: University of Colorado Anschutz Medical Campus; University of Colorado Boulder; Optica studyReferences: Optica, “New Miniature Microscope Allows Scientists to Watch and Control Brain Cells During Natural Movement,” article publication date: Aug. 7, 2026KeywordsMiniature microscope, two-photon microscopy, optogenetics, neuroscience, brain imaging, neural circuits, freely moving animals, biomedical engineering, applied physics, neurological disease, brain research