Does the shape affect the taste?

So, my question of the day is this:

Does the shape of the chocolate affect the taste of it?

I ask because I have sitting beside me a couple of wrappers from Hershey's Miniatures Milk Chocolate and Hershey's Kisses. The Hershey's miniature is obviously in a rectangle shape. The Hershey's kisses are obviously "kiss" shaped (is there an official name for it?)

I think they taste different!

So, is it the shape that makes the difference?

Do you think there's an official study to be conducted? I'd be happy to be a taste tester!