From Science Daily, a joint study from the University of Haifa, Soroka University Medical Center and Achva Academic College, Israel, published in The Arts in Psychotherapy:
The neck: women suffering from anorexia or bulimia tended to draw a larger neck, a disconnected neck or no neck at all; The mouth: this feature was more emphasized in drawings by women suffering from anorexia or bulimia; The thighs: women with eating disorders drew wider thighs than the other groups in the study; The feet: women with eating disorders tended to draw pictures without feet or with disconnected feet. The study also revealed that self-figure drawings can differentiate between anorexic and bulimic women: those with anorexia tended to omit breasts from their drawings, drew less defined body lines and smaller figures relative to the page size.