Abstract
This study was conducted to determine whether acoustic analysis of emotional prosody can assist in differential diagnosis of cognitive impairment. Speech samples describing the Cookie Theft picture were obtained from the Dementia Talkbank and analyzed acoustically. Included in this speech dataset were 10 people with dementia of the Alzheimer’s type, 9 people with mild cognitive impairment, 5 people with vascular dementia, and 10 neurotypical controls. The principal component analysis revealed five factors with two to five acoustic measures per factor for differential diagnosis of cognitive impairment.
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