Title
Causal indicators for assessing the truthfulness of child speech in forensic interviews
Abstract
When interviewing a child who may have witnessed a crime, the interviewer must ask carefully directed questions in order to elicit a truthful statement from the child. The presented work uses Granger causal analysis to examine and represent child-interviewer interaction dynamics over such an interview. Our work demonstrates that Granger Causal analysis of psycholinguistic and acoustic signals from speech yields significant predictors of whether a child is telling the truth, as well as whether a child will disclose witnessing a transgression later in the interview. By incorporating cross-modal Granger causal features extracted from audio and transcripts of forensic interviews, we are able to substantially outperform conventional deception detection methods and a number of simulated baselines. Our results suggest that a child's use of concreteness and imageability in their language are strong psycholinguistic indicators of truth-telling and that the coordination of child and interviewer speech signals is much more informative than the specific language used throughout the interview.
Year
DOI
Venue
2022
10.1016/j.csl.2021.101263
COMPUTER SPEECH AND LANGUAGE
Keywords
DocType
Volume
Automated deception detection, Narrative truth induction, Child forensic interviewing, Granger causal analysis
Journal
71
ISSN
Citations 
PageRank 
0885-2308
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Zane Durante100.34
Victor Ardulov201.69
Manoj Kumar33120.96
Jennifer Gongola400.34
Thomas D Lyon511.71
Narayanan Shrikanth65558439.23