oxytocin was pressure injected through a glass micropipette into a supraoptic ( son ) or paraventricular nucleus ( pvn ) while recording the electrical activities of oxytocin cells in a contralateral nucleus , to see whether oxytocin acts locally in the magnocellular nuclei to control their bursting activity and whether the oxytocin cells of the four magnocellular nuclei were functionally interconnected during suckling .
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the
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cells of