The smoothed-out version has a lot to say. The regional breakdown is clear, and it doesn’t look much like other maps that try to show where some phenomenon or another is happening in the United States. Grieve said the use of “uh” looks to follow the elusive “Midland dialect,” which linguists have suspected follows the Ohio River southwest from central Pennsylvania. That accounts for most of the blue that sweeps from West Virginia all the way to Arizona. Grieve said the “uh” and “um” analysis is the first time his research has shown clear evidence of the Midland dialect. The map also shows that usage on the west coast is harder to pin down. The purplish color leans toward “uh” in most of California, aside from the Bay Area, but there is no clear winner west of Arizona.
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Because you were no doubt wondering; here you go: