What I find interesting about this is that she is not, in fact, "saying words backwards". "Saying words backwards" would mean repeating the actual morphemes reversed, and in reverse order, like what you'd get if you played a record backward.

What this girl is doing is translating the word into its written representation, reversing that representation and then repeating back a pronunciation (following English pronunciation rules) of those reversed letters.

These are different operations that would recruit different parts of the brain, and I actually think what she's doing, and what it suggests about the underlying mechanisms, is much more interesting than just "saying words backwards"... though that would be pretty cool too.

"with a peak osculation?"

I do not think that word means what he thinks it means.