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Perceptual and acoustic differences between authentic and acted nonverbal emotional vocalizations

Anikin, Andrey LU and Lima, Cesar (2017) In Quarterly Journal of Experimental Psychology
Abstract
Most research on nonverbal emotional vocalizations is based on actor portrayals, but how similar are they to the vocalizations produced spontaneously in everyday life? Perceptual and acoustic differences have been discovered between spontaneous and volitional laughs, but little is known about other emotions. We compared 362 acted vocalizations from seven corpora with 427 authentic vocalizations using acoustic analysis, and 278 vocalizations (139 authentic and 139 acted) were also tested in a forced-choice authenticity detection task (N = 154 listeners). Target emotions were: achievement, amusement, anger, disgust, fear, pain, pleasure, and sadness. Listeners distinguished between authentic and acted vocalizations with accuracy levels above... (More)
Most research on nonverbal emotional vocalizations is based on actor portrayals, but how similar are they to the vocalizations produced spontaneously in everyday life? Perceptual and acoustic differences have been discovered between spontaneous and volitional laughs, but little is known about other emotions. We compared 362 acted vocalizations from seven corpora with 427 authentic vocalizations using acoustic analysis, and 278 vocalizations (139 authentic and 139 acted) were also tested in a forced-choice authenticity detection task (N = 154 listeners). Target emotions were: achievement, amusement, anger, disgust, fear, pain, pleasure, and sadness. Listeners distinguished between authentic and acted vocalizations with accuracy levels above chance across all emotions (overall accuracy 65%). Accuracy was highest for vocalizations of achievement, anger, fear, and pleasure, which also displayed the largest differences in acoustic characteristics. In contrast, both perceptual and acoustic differences between authentic and acted vocalizations of amusement, disgust, and sadness were relatively small. Acoustic predictors of authenticity included higher and more variable pitch, lower harmonicity, and less regular temporal structure. The existence of perceptual and acoustic differences between authentic and acted vocalizations for all analysed emotions suggests that it may be useful to include spontaneous expressions in datasets for psychological research and affective computing. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
emotion, nonverbal vocalizations, authenticity, actor portrayals, acoustic analys
in
Quarterly Journal of Experimental Psychology
pages
21 pages
publisher
Taylor & Francis
external identifiers
  • scopus:85008618970
DOI
10.1080/17470218.2016.1270976
language
English
LU publication?
yes
id
426d9142-7166-4798-8c6a-edd1a2849be6
alternative location
http://cogsci.se/personal/results/03_anikin-lima_2016_authentic-vs-acted/real-fake_ver4.2.pdf
date added to LUP
2017-01-09 10:26:47
date last changed
2017-06-03 03:00:07
@article{426d9142-7166-4798-8c6a-edd1a2849be6,
  abstract     = {Most research on nonverbal emotional vocalizations is based on actor portrayals, but how similar are they to the vocalizations produced spontaneously in everyday life? Perceptual and acoustic differences have been discovered between spontaneous and volitional laughs, but little is known about other emotions. We compared 362 acted vocalizations from seven corpora with 427 authentic vocalizations using acoustic analysis, and 278 vocalizations (139 authentic and 139 acted) were also tested in a forced-choice authenticity detection task (N = 154 listeners). Target emotions were: achievement, amusement, anger, disgust, fear, pain, pleasure, and sadness. Listeners distinguished between authentic and acted vocalizations with accuracy levels above chance across all emotions (overall accuracy 65%). Accuracy was highest for vocalizations of achievement, anger, fear, and pleasure, which also displayed the largest differences in acoustic characteristics. In contrast, both perceptual and acoustic differences between authentic and acted vocalizations of amusement, disgust, and sadness were relatively small. Acoustic predictors of authenticity included higher and more variable pitch, lower harmonicity, and less regular temporal structure. The existence of perceptual and acoustic differences between authentic and acted vocalizations for all analysed emotions suggests that it may be useful to include spontaneous expressions in datasets for psychological research and affective computing.},
  author       = {Anikin, Andrey and Lima, Cesar},
  keyword      = {emotion,nonverbal vocalizations,authenticity,actor portrayals,acoustic analys},
  language     = {eng},
  month        = {01},
  pages        = {21},
  publisher    = {Taylor & Francis},
  series       = {Quarterly Journal of Experimental Psychology},
  title        = {Perceptual and acoustic differences between authentic and acted nonverbal emotional vocalizations},
  url          = {http://dx.doi.org/10.1080/17470218.2016.1270976},
  year         = {2017},
}