Also known as autosomatagnosia, autosomatamnesia, hemidepersonalization, imperception for one half of the body, and negative phantoms. The term hemiasomatognosia comes from the Greek words hèmi (half), a (not), soma (body), and gnosis (insight). It is used to denote a unilateral type of "acenesthesia, characterized by a total lack of awareness of one half of one's physical body.
References
Critchley, M. (1953). The parietal lobes. London: Edward Arnold & Co.
Dictionary of Hallucinations. J.D. Blom. 2010.