Baby elise has developed a sucking scheme. she knows that to get food she must suck on her mother's breast. now, her mother has begun to introduce solid foods with a spoon. elise immediately sucks on the spoon. this is an example of:

Assimilation
Assimilation is when people take in new information and relate it to what we already know. The baby knows that in order to get food she has to suck.  She is taking in the new information (the spoon) and relating it to eating (sucking).