A comprehensive review of computational methods for automatic prediction of schizophrenia with insight into indigenous populations
- Authors: Ratana, Randall , Sharifzadeh, Hamid , Krishnan, Jamuna , Pang, Shaoning
- Date: 2019
- Type: Text , Journal article , Review
- Relation: Frontiers in Psychiatry Vol. 10, no. (2019), p.
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- Description: Psychiatrists rely on language and speech behavior as one of the main clues in psychiatric diagnosis. Descriptive psychopathology and phenomenology form the basis of a common language used by psychiatrists to describe abnormal mental states. This conventional technique of clinical observation informed early studies on disturbances of thought form, speech, and language observed in psychosis and schizophrenia. These findings resulted in language models that were used as tools in psychosis research that concerned itself with the links between formal thought disorder and language disturbances observed in schizophrenia. The end result was the development of clinical rating scales measuring severity of disturbances in speech, language, and thought form. However, these linguistic measures do not fully capture the richness of human discourse and are time-consuming and subjective when measured against psychometric rating scales. These linguistic measures have not considered the influence of culture on psychopathology. With recent advances in computational sciences, we have seen a re-emergence of novel research using computing methods to analyze free speech for improving prediction and diagnosis of psychosis. Current studies on automated speech analysis examining for semantic incoherence are carried out based on natural language processing and acoustic analysis, which, in some studies, have been combined with machine learning approaches for classification and prediction purposes. © Copyright © 2019 Ratana, Sharifzadeh, Krishnan and Pang.
Education reform makes no sense without social class
- Authors: Smyth, John
- Date: 2014
- Type: Text , Journal article , Review
- Relation: British Journal of Sociology of Education Vol. 35, no. 6 (2014), p. 953-962
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- Description: In enlightened and civilised societies we like to think that the blatantly racist eugenics movement that involved social selection based upon genetic traits is a disgraceful notion relegated to the past; but it seems not, it has just re-emerged in another form through the back door. It is an interesting question as to why social class continues to remain such a verboten topic, and to understand why we need to get inside what is going on. I can get to the essence of my argument quickly through an example from a university colleague: ‘This is bullshit,’ the student muttered under her breath. The tutorial topic assigned for that week was class. I’d kicked things off by asking whether class existed in modern Australia, or whether it was a relic of nineteenth century Europe. Struck by the student’s response, I asked her to elaborate. She did: Look, I went to private school and my Dad’s a CEO and most of his friends are business people. So I guess that’s supposed to make me upper class? But class has nothing to do with it. Going to a private school was my parents’ decision. And my Dad’s friends are just his friends. I suggested that the choice of school – not to mention the capacity to affordthe fees – and her father’s friendship network might have been heavily shaped by their class position. That wasn’t to say there was anything wrong with it, but it did show how our lives are shaped by larger social and economic forces we don’t control. The student was having none of it. It was clear that she’d encountered the notion of class before and found it singularly unconvincing. In her world, everything was simply a matter of individual choice – choices that were unconstrained … [and while] she didn’t actually say it, … class seemed to be an excuse for people who made the wrong choices in life. (Scanlon 2014)