Abstract
A PRECISE method of chronic implantation of large electrodes into brain structures is to locate the generator of a signal and then to place the electrodes in a manner which will record the maximum electrical activity. Freeman1 has developed such a method for implanting into the prepyriform cortex utilizing the electrical field produced in this area by electrical activation of the lateral olfactory tract. This method was adapted for chronically implanting bipolar electrodes into the olfactory bulb of cats.
