Automatic Prosodic Analysis to Identify Mild Dementia

Biomed Res Int. 2015:2015:916356. doi: 10.1155/2015/916356. Epub 2015 Oct 19.

Abstract

This paper describes an exploratory technique to identify mild dementia by assessing the degree of speech deficits. A total of twenty participants were used for this experiment, ten patients with a diagnosis of mild dementia and ten participants like healthy control. The audio session for each subject was recorded following a methodology developed for the present study. Prosodic features in patients with mild dementia and healthy elderly controls were measured using automatic prosodic analysis on a reading task. A novel method was carried out to gather twelve prosodic features over speech samples. The best classification rate achieved was of 85% accuracy using four prosodic features. The results attained show that the proposed computational speech analysis offers a viable alternative for automatic identification of dementia features in elderly adults.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Aged, 80 and over
  • Case-Control Studies
  • Dementia / diagnosis*
  • Dementia / physiopathology
  • Female
  • Humans
  • Male
  • Signal Processing, Computer-Assisted*
  • Sound Spectrography
  • Speech / classification*
  • Speech Acoustics
  • Support Vector Machine