| Summary: | Includes bibliographical references (leaves 82-104). === This study used qualitative methodology for an analysis of the conversations of two communication-impaired bilingual elders diagnosed with a mild/moderate stage of Alzheimers's disease (AD). The aim of the study was to investigate the linguistic consequences of cognitive decline on language in English-Afrikaans co-ordinate bilinguals with AD by monitoring the changes in these linguistic outcomes after three months, and to see whether the two languaes are affected by AD in a comparable way. The impact of conversational disorders on clinicians and caregivers needs to be investigated to determine the full impact of a communication disorder such as AD from the perspective of the impaired speaker and the conversational partner, to functionally improve communication, self-esteem and psychosocial well-being. The results are based on observations and audio recordings of conversations with two participants. The results are presented broadly to demonstrate the participants' typical linguistic behaviour and reveal linguistic behaviour as a continuum that includes elements of both languages. Wide use of L1q in conversation domains that were allocated to the L2 was noted. The results show that the severity of AD and language proficiency are major contributing factors for language mixing. As the disease progressed, the conversational partner carried the cognitive responsibility for upholding/maintaining the conversation. Emerging from the study is an enhanced awareness of the need to combine studies in bilingualism with studies in ageing, since research of this nature is still in its infancy in applied language studies and applied linguistics in Africa.
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