neither the injections of oxytocin or acetylcholine outside but near the magnocellular nuclei ( 200-500 microns ) , nor the intranuclear injection of 100-200 nl of cerebrospinal fluid-like medium , modified the background activity , the frequency and amplitude of bursts of the oxytocin cells in the nucleus contralateral to the injection site .
C0007634
cells
C0007610
nucleus