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Paper Cenk Demiroglu - Analysis of Prosodic Patterns in Conversational Speech in People with Alzheimer’s Disease
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Paper Cenk Demiroglu - Analysis of Prosodic Patterns in Conversational Speech in People with Alzheimer’s Disease

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  1.  Analysis of Prosodic Patterns in Conversational Speech in People with Alzheimer’s Disease   Cenk Demiroglu  Although Alzheimer’s disease causes progressive degradation in all cognitive functions of the human  brain,  one  of  the  most  noticeable  changes  at  the  early  phases  of  the  disease  is  the degradation in language abilities which reflects itself as progressively shrinking lexicon that is used  by  the  patient  in  his/her  daily  life.  As  the  disease  progresses  to  later  stages,  repetitive speech  patterns  and  monotone  speaking  style  becomes  more  prominent.  In  this  work,  we interviewed 17 Alzheimer’s patients that are at different phases of the disease. The interviews are  recorded  for  analysis  of  the  prosodic  patterns  such  as  changes  in  pitch  during  voiced speech,  changes  in  energy,  and  duration  of  speech  and  silences.  Those  parameters  are  then compared with the same parameters extracted from healthy adults during interview. Besides the objective analysis, the interviews are also subjectively analysed to further understand the repetitive patterns in speech and the divesity of the words used during the interview.  

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