Newson E., Le Maréchal K. and David C. (2003) Pathological demand avoidance syndrome: a necessary distinction within the pervasive developmental disorders.

Jessica Kingsley Publishers released a book in September 2011 entitled Understanding Pathological Demand Avoidance Syndrome in Children.

Pathological demand avoidance (PDA), or Newson's Syndrome, is a subtype of autism characterized by an avoidance of the ordinary demands of life.