[The mirror stage ("Stade du Miroir" by J. Lacan) as a crucial stage of development for finding one's identity - normal, neurotic, psychotic development].

The socalled "Mirror Stage" ("Stade du Miroir" by J. Lacan) seems to be a normal stage of development between the sixth and the eighteenth month of age. In the centre of this study you find terms of developmental psychology and especially of psychoanalysis like: 'mother-child relationship', 'first relationship to objects', 'passage from primary to secondary narcism', 'ego-ideal' and 'ideal of the ego' and others. The Mirror Stage seems to be especially important for the formation of the identity: wether the child becomes 'normal', 'neurotic' or 'psychotic'. Here we also find terms, invented by Lacan like the 'Real', the 'Imaginary' and the 'Symbolic'.