“…In some reports, investigative data are sparse and distinction from an ischaemic aetiology is difficult to make (Globus et al 1982, Dierckx et al 1988). However, in most cases a structural abnormality of the brain was determined and an EEG frequently showed slow activity, with or without sharp waves (Kofman andTasker 1967, Fisher 1978). Of note, however, is that a large number was diagnosed as 'ictal' in aetiology in view of the response of the hemiparesis to anticonvulsants, particularly benzodiazepines.…”