Cellerier’s originality lies in showing how social and mental practices are already part of the selection systems of behaviors. Certain accentuations of the voice, modulations of the movements of the arm, or ways of thinking create individual practices that will be automatically evaluated from different points of view:
1. A behavior is more or less compatible with other existing behaviors within an organism.
2. A person can more or less appreciate the behaviors that are built within her.
3. A behavior has an impact on another who may appreciate it more or less.
4. A behavior can be more or less compatible with the behaviors of other members of the social environment.
5. An individual can value one of his behaviors, but not the impact that it has on his intimate ones.
Sometimes an individual likes a way of doing things, his environment also likes it, and the individual refuses to do it to express his resistance to the environment. This is the case of the anorexic who refuses to eat to oppose one of the parents.103 Let us consider the following typical situation:
Vignette on a typical form of anorexia. A child has an intrusive mother, who absolutely wants her to eat large quantities of food. Although the child needs to eat, when she refuses to eat her mother becomes frustrated and angry. So the child, as vengeance and a defense against a continuously intrusive mother, refuses to eat. This anorexic behavior tends to increase when the parents, at last, start to panic and worry about what their child feels.