what kinds of persuasive techiniques does lady macbeth use? Why do they work?

Lady Macbeth uses a common technique often used by a woman:  she asks him if he is really a man, or is he like "the poor cat i' the adage?"  (obviously the cat promised one thing which he did not fulfill.)  She also shames him by using the violent image of dashing out the brains of a nursing baby to show how a "real" man would act once he makes a promise.  She finally offers him what seems like a foolproof plan.