The very hungry caterpillar

Now that I have chosen a topic, the significance of sentimental objects, I decided to do some research and see what kind of spin I could put on it. I think I am going to look at it from a literary point of view as well as----Im not sure what I meant to write in that last sentence. I got distracted and started watching YouTube videos. I am pretty sure I meant to say "a literary view as well as a psychological point of view." For my project, I also want to preform an experiment by comparing children that have these sentimental objects as opposed to children that don't. Could it effect the way they sleep? What do psychologists have to say? I could use my little sister and her caterpillar named "T" as the experimental part of my project. How does it effect her on a night when she cant find "T"?.. I am kind of scared to test out this theory because there will probably be a lot of screaming and crying involved. This should be interesting.