Zanini, S. (2011) Primary progressive aphasia in a bilingual speaker: a single-case study, (Received 30 November 2010; Accepted 14 February 2011) pages 553-564
This article was created on a single case study that was based on a bilingual woman known as “PO” that was suffering from Primary Progressive Aphasia (PPA). PPA is a type of form of impairment that involves the loss of language function, which gradually becomes difficult to speak. The article goes on with its research on how the second language (learned in school) deteriorates quicker than the first language learned at birth. This was only a single case study, but three other examples were given which were also single-case studies that were published before, who were also bilingual and suffering was Primary Progressive Aphasia.