摘要：The literature reports widely variable performance by aphasie patients on both receptive and expressive measures (i.e. Gordon, 1998), both within and across aphasia typologies. While prior research has attempted to link behavioral deficits to site and extent of neural lesion in attempts to explain variability (e.g. Dronkers et al., 2004), there remains a good deal of disagreement in the literature. The current project investigates a possible neurophysiological source of this variability: cerebral blood flow (CBF). In this study, we asked whether hypoperfiision (decreased CBF in structurally intact neural regions) underlies seemingly aberrant behavioral patterns among individuals with chronic aphasia (> 1 year post-onset).
