I took dad to the art gallery (again, he wants to go there fairly often) yesterday, and he had a very odd speech problem that I'd not witnessed, and mom said she'd only observed once.
He wanted to say something, but when he tried to start he just kept repeating the same syllable or sound over and over (something like a reh-reh-reh-reh...). It was eerie, since he also couldn't seem to stop for a bit, and then when he tried again, it just happened the same way. He seemed aware that this was happening, but was unable to do anything.
Does anyone have an idea what the name for this speech issue is?