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Illustration of person with speech bubble showing a brain within it.
  • Ms. Tech; Face profile by Marek Polakovic, SK | Noun Project
  • Depression detector

    Analyzing speech patterns can predict if a subject is depressed.

    To diagnose depression, clinicians interview patients, asking specific questions—about, say, past mental illnesses, lifestyle, and mood.

    Machine learning that can detect words and intonations associated with depression could help with diagnostics. But such models tend to predict depression from the person’s specific answers to very specific questions.

    A new neural-network model developed at MIT can be unleashed on raw text and audio data from interviews to discover speech patterns indicative of depression. Given a new subject, it can accurately predict whether the individual is depressed without needing any other information about the questions and answers.

    This story is part of the November/December 2018 Issue of the MIT News magazine
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    “The model sees sequences of words or speaking style, and determines that these patterns are more likely to be seen in people who are depressed or not depressed,” says EECS graduate student and CSAIL researcher Tuka Alhanai, SM ’14, first author on a paper presented at the Interspeech conference. “Then, if it sees the same sequences in new subjects, it can predict if they’re depressed too.”

    This research could lead to tools to detect signs of depression in natural conversation. For example, apps that alert users to signs of distress in their text and voice communications could be useful for those who can’t get to a clinician for diagnosis because of distance, cost, or lack of awareness that something may be wrong. The technology could also help identify mental distress during casual conversations in clinical offices. —

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