[Therapeutic communication of blood: elements for a phenomenologic social psychology of the living].

Blood is the most available and admissible of substitutive human products. However, neither an attitude favourable to its therapeutic transfusion nor a positive representation of blood is sufficient to predict an effective gift or an absence of fear to its reception. In this article, we synthesize various research of social psychology aiming at understanding what are these different bloods that the subjects accept or refuse to communicate. In order to give a new interpretation of the problems of the social communication of substitutive human product, we will evoke practice, attitudes and representations of blood starting from a model including seven factors of representation of biological materials - this model reflecting dimensions on which is based the intersubjective social network in which is carried out the therapeutic communication of blood.