Investigating the course of recovery in high risk suicide using power spectral density

Nik Hashim, Nik Nur Wahidah and Wilkes, Mitchell and Salomon, Ronald (2015) Investigating the course of recovery in high risk suicide using power spectral density. Asian Journal of Applied Sciences, 3 (4). pp. 608-614. ISSN 2321-0893

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Abstract

This pilot study attempts to address the question of whether there is a statistically significant change in patients’ vocal characteristics as they progress from the initial recording session (labeled as high risk suicidal) to the second and third recording session that was collected a few days after receiving treatments. Interview speech and reading speech were collected from five male patients and eight female patients. Using the Power Spectral Density (PSD) feature, the normalized Euclidean distance from each vector to the separating hyperplane was measured in order to capture the progression or regression of patients after three treatment sessions. One-tailed paired sample ttest demonstrates statistically significant difference between the first and second session which represents improvement. In some cases, the first and third session also demonstrates statistically significant difference which shows that patients does not experiencing relapse

Item Type:	Article (Journal)
Additional Information:	7157/47060
Uncontrolled Keywords:	Speech, suicide, depression, severity
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA164 Bioengineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering
Depositing User:	Dr Nik Nur Wahidah Nik Hashim
Date Deposited:	08 Mar 2016 15:14
Last Modified:	15 Nov 2017 17:28
URI:	http://irep.iium.edu.my/id/eprint/47060

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