It shows the location of firing neurons in an indirect manner, by tracking the blood flow that supplies them with nutrients and oxygen.
By tracking the blood flow in people's brains as they listened to a storytelling radio show, scientists at UC Berkeley have mapped out where the meanings associated with basic words are encoded in the cortex, creating the first semantic atlas of the brain.
These data, from its sporadic Survey of Income and Program Participation, are drawn from a smaller sample than the Current Population Survey, but are gathered more carefully and therefore regarded by experts as more accurate in tracking the flow of benefits.
The technique is now so sensitive that it can locate the site where different mental tasks are performed in the brain, essentially by tracking the extra blood flow to the active regions.
The dispersed phase is solved by tracking the liquid fuel droplets through the flow field.
We also demonstrate the possible onset of a fluid-elastic instability by tracking the modal parameters with increasing flow velocity.
In the mesoscopic lattice Boltzmann method (LBM), fluid flow is simulated by tracking the development of distribution functions of assemblies of molecules.
The rate of retrograde flow was determined by tracking the rearward movement of the sharp boundary of newly incorporated fluorescent actin after bleaching [39], [40].
