WHITE PLAINS, N.Y. (AP) — Experts say the case of a mother accused of poisoning her 5-year-old son to death with salt appears be an example of how social media feeds into Munchausen by proxy, a disorder in which caretakers purposely harm children and then bask in the attention and sympathy.

Lacey Spears, of Scottsville, Kentucky, has pleaded not guilty to charges of depraved murder and manslaughter in the January death of her son, Garnett-Paul Spears, whose sodium levels rose to an extremely dangerous level with no medical explanation.