@jgweed,
The Charlie Rose is continuing to conduct interview/discussions with brain researchers. The latest show (which I think you can see on you tube) had researchers presenting research on this topic.
One of the folks was doing research with small children with an eye to when they become logical (so to speak.) Her conclusion was that as early as a baby can be tested, they appear to share our way of understanding reality.
For names, I think the Charlie Rose website might be the quickest way.