Searches performed: Apart from the obvious Google searches for "word salad audio," "word salad sample," "disorganized speech sample," "disorganized speech analysis," and similar variations, and clicking through the references on Wikipedia articles on word salad, disorganized schizophrenia, etc., I also searched JSTOR for the same key terms, limiting results to journals in psychology, sociology, and linguistics.
I have searched YouTube, also, and gotten several results ostensibly featuring patients expressing word salad, but with YouTube, it's hard to know exactly what the provenance of clips is.
What I'm looking for/how I'm using the research: I'm hoping to find samples (audio or transcription) or analyses of so-called "word salad" speech associated with disorganized schizophrenia. I have a character who's been the victim of a supernatural force and now displays disorganized speech and thought. He only appears for one scene, but despite that and the fact that I'm using supernatural elements, I'd really like to be able to portray the communication problems of "word salad" with something like accuracy, including the frustration it entails for the patient as well as those around him, and not perpetuate the "magic mental" trope.