Credit: MouseLight Project, Janelia Research Campus
Inside the mouse brain’s motor cortex, one set of neurons (green) sends projections to the thalamus, and another set (magenta) projects to a brainstem region called the medulla.
Credit: MouseLight Project, Janelia Research Campus
Using a whole-brain fluorescence imaging technique developed at Janelia, scientists captured axons of pyramidal tract neurons leaving the motor cortex.
Janelia and Allen Institute scientists identified different cell types in the motor cortex based on gene expression patterns. These cell types are represented as colored “islands” below the brain. The two circled islands correspond to green and pink morphology types.