I've mentioned before that Lyn is susceptible to suggestions. For example, when she was being interviewed at the University last summer, she was asked if she got sad sometimes and she burst into tears as if on cue. We were floored and just chalked it up to Lyn being Lyn.
A post over at Only Human, a National Geographic Phenomena blog yesterday really shed some light on that behavior for me. I encourage you to read it. The post is titled "With Alzheimer's Comes Empathy" and the author, Virginia Hughes, does a great job of explaining the findings of a study in easy to understand terms.
I hope you find it as enlightening as I did.