For a while in elementary school, my son started to stutter just a bit, and we think that was related to his processing speed. We likened the processing issue to a funnel: he's got all these thoughts and information swirling around in his head, but a small funnel he's got to get them through to get them out. So sometimes, there's a bottleneck as he gets his thoughts out. As he gets older, he seems to have figured out his own workarounds, but he's still relatively slow and careful at everything he does.
