Vincent’s form of speech difficulty, known as Wernicke’s aphasia, sounds like gibberish, but not pure nonsense. It can include halting phrases that almost make sense, echolalia (repeating someone else’s just-used words), perseveration (giving the same answer to a succession of different questions), and play association (cracking wise). While he knew the answers to many of our questions, most of his responses didn’t come out quite right, yet he seemed unaware and unconcerned.
