Quantifying Facial Expression Intensity and Signal Use in Deaf Signers.

Details

Serval ID
serval:BIB_BED7252F9247
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Quantifying Facial Expression Intensity and Signal Use in Deaf Signers.
Journal
Journal of deaf studies and deaf education
Author(s)
Stoll C., Rodger H., Lao J., Richoz A.R., Pascalis O., Dye M., Caldara R.
ISSN
1465-7325 (Electronic)
ISSN-L
1081-4159
Publication state
Published
Issued date
01/10/2019
Peer-reviewed
Oui
Volume
24
Number
4
Pages
346-355
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
We live in a world of rich dynamic multisensory signals. Hearing individuals rapidly and effectively integrate multimodal signals to decode biologically relevant facial expressions of emotion. Yet, it remains unclear how facial expressions are decoded by deaf adults in the absence of an auditory sensory channel. We thus compared early and profoundly deaf signers (n = 46) with hearing nonsigners (n = 48) on a psychophysical task designed to quantify their recognition performance for the six basic facial expressions of emotion. Using neutral-to-expression image morphs and noise-to-full signal images, we quantified the intensity and signal levels required by observers to achieve expression recognition. Using Bayesian modeling, we found that deaf observers require more signal and intensity to recognize disgust, while reaching comparable performance for the remaining expressions. Our results provide a robust benchmark for the intensity and signal use in deafness and novel insights into the differential coding of facial expressions of emotion between hearing and deaf individuals.
Pubmed
Web of science
Open Access
Yes
Create date
21/07/2019 16:17
Last modification date
19/02/2020 6:19
Usage data