Does anyone know about 'switching' a plant to veg after harvest?

I've not done this before but someone told me that I should be able to switch my plants back to veg after they are harvested. Can someone help?

Yes you can do, chop the buds off and leave whats left of the branches along with the leaves. All you have to do is throw it onto 24 hrs light and give it a veg feed then (presuming you've been flushing).
I've found personally that doing this doesn't bring good yeild but the plants are often stickier. Don't know if anybody else experiences this I put it down to the stress and all.:)