One day as we kangarooed, some water was trapped in his high flow cannula and as he sucked, it made a funny noise. He noticed (at 34ish weeks gestation!) that he could make the noise stop and start and was fascinated by his power. Finally the little bubble cleared and he tried several more times by stopping and starting sucking to make the noise happen again.
So I decided to try to enforce cause amd effect with him a few days later by singing only when he sucked. What did my darling boy do when he realized he had the power to "turn off the radio"?? He quit sucking altogether. :| Thanks a lot, kid.
A device like this would have been a great help to him. His sister got feeds quickly though had to go at hospital's pace (first bottle feed was a teaspoon for the entire day!) but he struggled until finally, finally at close to 44 weeks gestation, he got it down so he could come home. Very cool!!