What do you call this musical technique?

[JonPorobil]

There's this thing I hear pretty often, when a musical phrase is introduced, then immediately repeated with a different cadence. For instance, the musical hook to "Head Over Heels" by Tears for Fears:

http://www.youtube.com/watch?v=-sZzCyJVb4o

The two phrases are composed of the same tones in the same order: G, F#, E, D, E, C. But the first time through, the G and the D are both half notes, whereas the second time through they're all quarter notes.

Another instance of it can be found in the bassline to Ben Folds Five's song "Jackson Cannery" - in between the two "Whoas" (about 1:15 in this video).
http://www.youtube.com/watch?v=PRjT-RvOsqg

Is there a name for that type of construction?

[LMNOP]

Hmm, Google seems to want to call it isomelos, at least in a 12-tone setting. Information is scant. I'm not sure I would have recognized the technique if you hadn't pointed it out. Or maybe I just wouldn't have thought that it might have a name.

[frankie big face]

Jon, I would simply call that rhythmic variation of a repeated phrase.