What is the author's style in Songs of the Humpback Whale by Jodi Picoult?

There are five distinct points of view telling the same story. Each one is identified by title by chapter and told in first person present tense. Jane's point of view appears in 24 chapters. She contradicts herself often and is prone to dramatic expressions and thoughts. She doesn't want to be a good mother; she pledges to be the perfect mother. Her responses are triggered by outside stimulus more often than by her own will.