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.