TY - JOUR
T1 - Detection of imitated voices
T2 - Who are reliable earwitnesses?
AU - Eriksson, Erik
AU - Sullivan, Kirk
AU - Zetterholm, Elisabeth
AU - Czigler, Peter
AU - Green, James
AU - Skagerstrand, Åsa
AU - van Doorn, Jan
PY - 2010
Y1 - 2010
N2 - Factors affecting an individual's ability to identify people aurally are of forensic importance. This paper investigates how topic, dialect, gender, age, and hearing status affect detection of an imitated voice. Two imitations of the same person, but on different topics, were used as familiarization voices. One topic was associated with this person, and the other was not. Using discrimination sensitivity (d-prime) it was found that topic had a significant impact on d', as did age (but only when the topic was not associated with the imitated person). Dialect, gender and hearing status were not significant. The older group of listeners was less convinced by the imitations and in particular the one not associated with the person being imitated. These results imply that the validity of earwitness evidence is negatively affected by age and topic.
AB - Factors affecting an individual's ability to identify people aurally are of forensic importance. This paper investigates how topic, dialect, gender, age, and hearing status affect detection of an imitated voice. Two imitations of the same person, but on different topics, were used as familiarization voices. One topic was associated with this person, and the other was not. Using discrimination sensitivity (d-prime) it was found that topic had a significant impact on d', as did age (but only when the topic was not associated with the imitated person). Dialect, gender and hearing status were not significant. The older group of listeners was less convinced by the imitations and in particular the one not associated with the person being imitated. These results imply that the validity of earwitness evidence is negatively affected by age and topic.
KW - Age
KW - Dialect
KW - Earwitness
KW - Hearing
KW - Imitation
KW - Reliability
UR - http://www.scopus.com/inward/record.url?scp=77956839536&partnerID=8YFLogxK
U2 - 10.1558/ijsll.v17i1.25
DO - 10.1558/ijsll.v17i1.25
M3 - Article
AN - SCOPUS:77956839536
SN - 1748-8885
VL - 17
SP - 25
EP - 44
JO - International Journal of Speech, Language and the Law
JF - International Journal of Speech, Language and the Law
IS - 1
ER -