PT - JOURNAL ARTICLE AU - M. P. Weller TI - Left handedness in an identical twin discordant to his co-twin for handedness and schizophrenia, with neurological and psychometric evidence of left hemisphere damage. AID - 10.1136/pgmj.66.773.224 DP - 1990 Mar 01 TA - Postgraduate Medical Journal PG - 224--226 VI - 66 IP - 773 4099 - http://pmj.bmj.com/content/66/773/224.short 4100 - http://pmj.bmj.com/content/66/773/224.full SO - Postgrad Med J1990 Mar 01; 66 AB - A left handed, monozygotic, male twin developed schizophrenia, whilst his right handed brother was free of psychopathology. There was no family history of mental illness or left handedness. The affected twin had left side motor weakness and an EEG showed scattered irregularities, particularly on the left. Psychometry indicated left sided tempero-parietal dysfunction. The relationship between left temporal lobe damage and schizophrenia is considered.