“A Thousand Acres” by Jane Smiley (post 4): Ginny had no further simultaneous thoughts or voices, making them gratuitous multiple personality

In my first post of this series, I quoted passages from mid-novel in which Ginny, the protagonist, said she was experiencing three different thought processes, in different areas of her mind, simultaneously, and was hearing voices.

Since such things, suggestive of multiple personality, were not mentioned either earlier or later in the novel, they were obviously not integral to either the story or character development. So why were they in this novel?

They are one more example of what I call “gratuitous multiple personality.” They are probably in the novel only as a reflection of the author’s own psychology.