Funny - I thought I recognized the title, and it's exactly the same as a book on the same subject (no surprise) by Anthony Storr, written in the late 1980s. The example of Edith Bone at the start of this review also rang a bell. Yes, it's a major case in point in Storr's book, too.
Too bad the reviewer didn't know this, and the author didn't (obviously) tip his hat to the earlier book. (I cannot be sure as I haven't picked up Harris'.) It's almost as if it was never written.
We must always acknowledge our influences.