Paul Krugman, "My Lawn Guyland Roots Are Showing", The Conscience of a Liberal, 11/24/2013:
I see that some commentators were wondering why, in an earlier post, I wrote “pedal to the medal” instead of “pedal to the metal”. The answer is, typing fast, and writing what I heard in my head. The truth is that sometimes, usually when I’m tired, I do hear myself referring to a bottle of water as a boddle of oo-waugh-duh — gotta get the three-syllable pronunciation there.
I’ve never made a conscious effort to change my accent, and I know from recordings that a bit of the Noo Yawk is still there, but four decades in academia have, I believe, flattened it out into Mid-Atlantic neutral most of the time. But not always, and sometimes not even when I write.