Computer aided diagnosis for mental health care: On the clinical validation of sensitive machines
Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
This study explores the feasibility of sensitive machines; that is, machines with empathic abilities, at least to some extent. A signal processing and machine learning pipeline is presented that is used to analyze data from two studies in which 25 Post-Traumatic Stress Disorder (PTSD) patients participated. The feasibility of speech as a stress detector was validated in a clinical setting, using the Subjective Unit of Distress (SUD). 13 statistical parameters were derived from five speech features, namely: amplitude, zero crossings, power, high-frequency power, and pitch. To achieve a low dimensional representation, a subset of 28 parameters was selected and, subsequently, compressed into 11 principal components (PC). Using a Multi-Layer Perceptron neural network (MLP), the set of 11 PC were mapped upon 9 distinct quantizations of the SUD. The MLP was able to discriminate between 2 stress levels with 82.4% accuracy and up to 10 stress levels with 36.3% accuracy. With stress baptized as being the black death of the 21st century, this work can be conceived as an important step towards computer aided mental health care.
Originalsprog | Engelsk |
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Titel | HEALTHINF 2012 - Proceedings of the International Conference on Health Informatics |
Antal sider | 6 |
Publikationsdato | 2012 |
Sider | 493-498 |
ISBN (Trykt) | 9789898425881 |
Status | Udgivet - 2012 |
Begivenhed | HEALTHINF 2012 - Proceedings of the International Conference on Health Informatics - Vilamoura, Algarve, Portugal Varighed: 1 feb. 2012 → 4 feb. 2012 |
Konference
Konference | HEALTHINF 2012 - Proceedings of the International Conference on Health Informatics |
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Land | Portugal |
By | Vilamoura, Algarve |
Periode | 01/02/2012 → 04/02/2012 |
Sponsor | Inst. Syst. Technol. Inf., Control Commun. (INSTICC) |
Navn | HEALTHINF 2012 - Proceedings of the International Conference on Health Informatics |
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ID: 337215884