Abstract：
:This study was designed to evaluate commonly used voice stress analyzers--in this case the layered voice analysis (LVA) system. The research protocol involved the use of a speech database containing materials recorded while highly controlled deception and stress levels were systematically varied. Subjects were 24 each males/females (age range 18-63 years) drawn from a diverse population. All held strong views about some issue; they were required to make intense contradictory statements while believing that they would be heard/seen by peers. The LVA system was then evaluated by means of a double blind study using two types of examiners: a pair of scientists trained and certified by the manufacturer in the proper use of the system and two highly experienced LVA instructors provided by this same firm. The results showed that the "true positive" (or hit) rates for all examiners averaged near chance (42-56%) for all conditions, types of materials (e.g., stress vs. unstressed, truth vs. deception), and examiners (scientists vs. manufacturers). Most importantly, the false positive rate was very high, ranging from 40% to 65%. Sensitivity statistics confirmed that the LVA system operated at about chance levels in the detection of truth, deception, and the presence of high and low vocal stress states.
journal_name
J Forensic Scijournal_title
Journal of forensic sciencesauthors
Harnsberger JD,Hollien H,Martin CA,Hollien KAdoi
10.1111/j.1556-4029.2009.01026.xsubject
Has Abstractpub_date
2009-05-01 00:00:00pages
642-50issue
3eissn
0022-1198issn
1556-4029pii
JFO1026journal_volume
54pub_type
杂志文章abstract：:Amplified fragment length polymorphism (AFLP) analysis of botanical forensic evidence provides a means of obtaining a reproducible DNA profile in a relatively short period of time in species for which no sequence information is available. AFLP profiles were obtained for 40 Acer rubrum trees. Leaf material from five ad...
journal_title：Journal of forensic sciences
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abstract：:Absorption extraction on diatomaceous earth was examined and found to be compatible with typical postmortem blood specimens encountered in forensic toxicology. The effects of solvent, solvent volume, eluate flow rate, and pH on drug recovery and extract quality were investigated. It was concluded that the best method ...
journal_title：Journal of forensic sciences
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更新日期：1989-05-01 00:00:00
abstract：:The aim of the study was to determine the effect of gender, body mass index, and time on the width of friction ridge impressions in fingerprints and the content of sweat and sebum forming the print. The research showed that the friction ridge impressions of women are significantly wider than those of men, and this ten...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.13937
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journal_title：Journal of forensic sciences
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doi：10.1111/j.1556-4029.2011.01724.x
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journal_title：Journal of forensic sciences
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更新日期：2004-09-01 00:00:00
abstract：:Despite technological advances, human remains detection (HRD) dogs still remain one of the best tools for locating clandestine graves. However, soil texture may affect the escape of decomposition gases and therefore the effectiveness of HDR dogs. Six nationally credentialed HRD dogs (three HRD only and three cross-tra...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.13084
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journal_title：Journal of forensic sciences
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doi：10.1111/1556-4029.13505
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journal_title：Journal of forensic sciences
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doi：10.1111/1556-4029.14296
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.12299
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journal_title：Journal of forensic sciences
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doi：10.1111/1556-4029.13089
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journal_title：Journal of forensic sciences
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更新日期：2000-05-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：2005-07-01 00:00:00
abstract：:This article describes a practical procedure for rapidly searching a large database of cocaine signatures to identify database entries that closely resemble a given reference cocaine exhibit using a personal computer (PC). The procedure takes advantage of the pattern recognition capability of the multilayer perceptron...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1993-03-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1983-07-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.12001
更新日期：2013-01-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：2005-11-01 00:00:00
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journal_title：Journal of forensic sciences
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doi：
更新日期：1999-03-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1981-04-01 00:00:00
abstract：:Few studies have examined life history and cognitive characteristics unique to female homicide offenders. Understanding these characteristics could aid in risk assessment for extreme violence in this group of offenders. The current study utilized t-tests or chi-square tests to compare 27 female and 81 male homicide of...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.13911
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abstract：:The association between perpetration of sexual abuse and the offender's own victimization as a child has been well documented in the literature. Various researchers have examined this relationship by assessing the exclusiveness of the sexual abuser's behavior, the gender of his victims and the gender of his own childh...
journal_title：Journal of forensic sciences
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doi：
更新日期：1993-03-01 00:00:00
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journal_title：Journal of forensic sciences
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journal_title：Journal of forensic sciences
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journal_title：Journal of forensic sciences
pub_type：
doi：10.1111/1556-4029.13923
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journal_title：Journal of forensic sciences
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doi：
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journal_title：Journal of forensic sciences
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doi：10.1111/j.1556-4029.2007.00508.x
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journal_title：Journal of forensic sciences
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更新日期：2005-11-01 00:00:00
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journal_title：Journal of forensic sciences
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更新日期：2001-09-01 00:00:00
abstract：:Many current methods of age determination available to forensic anthropologists are limiting in that the age ranges provided are often broad, particularly for individuals in their late teens to early 20's. This study introduces an improved method for aging teenagers and young adults. The pattern and stages of union of...
journal_title：Journal of forensic sciences
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doi：
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2008.00661.x
更新日期：2008-03-01 00:00:00
