In summary, we see how we have extended the meaning and significance of the conversion process to cover a more varied galaxy of psychic events. The historic conceptual linkage between conversion and hysteria has been loosened, and it is suggested that conversion can occur along the entire gamut of psychopathology, at any stage of libidinal or ego development. Though covering a wider range of phenomena than hitherto generally employed, the focus is still on the distorted use of physical or somatic innervation for the symbolic expression of the derivatives of repressed psychic products. It is submitted that the criteria presented fit better the observed data as well as make for a more consistent theoretical construct. We have, moreover, carefully described the restricting outer limits of this phenomenon so that it is clear that conversion is not to be equated with all of psychophysiology.