I was feeding Anna some of her puff snacks today when the idea hit me to do some experiments with her.
First up: object permanence. As usual I have done no prior research as to what age babies generally develop object permanence, and do what extent. At the tie of this writing Anna is 9 months and a 9 days old. We’ve had the impression she’s had permanence for a while but I don’t think we did any conclusive testing. Here was my experiment. I would take a cereal puff that she eats with her hand. I would place it in front of her and made sure she saw it. Before she could reach for it I would obscure said cereal with a toy. She would reliably remove the toy and eat the cheerio. But that in and of itself doesn’t prove permanence. She might just be attracted by the toy, move the toy and realize that magically a cheerio appeared. So the second part of the experiment began. I would place the cereal in front of her and made sure she noticed it. before she could reach for it I would place the same toy in between her and the food item so as to obstruct her view. At the same time I would discretely remove the cereal. Result? She would remove the toy and then look confused as to where the cereal might have gone.
Result: Success! Object permanence verified.
But how long would such permanence last?
Experiment 2: Three card monte.
In this experiment I retrieved three plastic concave bowls from the kitchen each of a different color. I would place a cereal in front of her and made sure she noticed. I would then place a random colored bowl over the cheerio along with the other two bowls. Anecdotally it seemed that she would initially reach for the bowl with the cereal. However, before she could do so I would rearrange the bowls in front of her as in the game three card monte. Unfortunately, there was no evidence to support the fact that she remembered under which colored bowl the cereal was located. However, when she did discover the cereal she never once ate it.
Result: Inconclusive. It is unclear whether she was no longer hungry or the bowls presented a more interesting object but I don’t think there is enough evidence here to conclusively indicate whether she did not know or did not care where the cereal was hidden.
Bowl-o-rama:
In this experiment I was trying to determine whether the bowls really were a more attractive toy for her than her traditional toys. I took two toys that she frequently prefers: A toy dog and a blue stress ball. I presented two toys at a time. One of the aforementioned toys and a bowl. Both times she chose a bowl regardless of whether the bowl was on the left or right. Then I presented both bowls to her to see which color she favored. She picked them both up.
She played with both bowls for a while. So I decided on my final experiment. What would happen if I gave her three bowls to play with? Would she pick just two and play with those? No. She alternated between the three bowls. Alternatively dropping one and picking up the priorly ignored one. No color preference was noted.
This concludes the latest installment of experiments with Anna.