摘要：Developmental and persistent speech disfluency has been observed in many cultures and languages, in general afecting the male more than the female, nonetheless the cause of stuttering has remained elusive (Rosenfield, 1997). Growing evidence from cortical imaging pointsto a neurological causefor the developmental persistent stuttering. Implicated are: cortical structural asymmetries, increased cortical tissue, enhanced metabolic activity, greater EEG activity in the right brain，and compensating right hemispheric participation. The confluence of these fectors fells in line with earlier observations of acquired disfluency in post - stroke aphasies Tantalizingly much neurological/neuroradiological evidence is focused upon cortical centers dedicated to language in the lefi brain (Foundas et al., 2001).
