Based on the information provided it can be said that the view of language development that is being supported by these findings is that of Interactionist. This is the study of how individuals are molded by society through the way they interact with others as well as them molding society themselves. Which imitation and symbolic play being delayed supports this study as these are most likely caused by a lack of interaction in society.
The interesting this about the people oft he Ancient Indus Valley is that the people seem to have just disappeared, and historians and archeologists cannot figure out what happened.
