In a separate experiment in
anesthetized mice, the scientists «steered» the target area of the TI, without moving the electrodes on the animals» scalps,
by altering the relative amount of current in each of the two high - frequency fields.
They found that 65 percent of tubercle cells from 23
anesthetized mice were activated
by at least one of five odors — an important finding in its own, because no one knew if tubercle cells could discriminate odors, a process thought to be exclusive to the part of the brain known as the piriform cortex.