Sexual dimorphism in human facial expressions by 3D surface processing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00103136" target="_blank" >RIV/00216224:14310/18:00103136 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jchb.2018.06.002" target="_blank" >http://dx.doi.org/10.1016/j.jchb.2018.06.002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jchb.2018.06.002" target="_blank" >10.1016/j.jchb.2018.06.002</a>
Alternative languages
Result language
angličtina
Original language name
Sexual dimorphism in human facial expressions by 3D surface processing
Original language description
Human face is a dynamic system where facial expressions can rapidly modify geometry of facial features. Facial expressions are believed to be universal across world populations, but only a few studies have explored whether grimacing is sexually dimorphic and if so to what extent. The present paper explores inter- and intra-individual variation of human facial expressions with respect to individual’s sex based on a set of neutral and expression-varying 3D facial scans. The study sample composed of 20 individuals (10 males and 10 females) for whom 120 scans featuring grimaces associated with disgust, surprise, “u” sound, smile and wide smile were collected by an optical scanner Vectra XT. In order to quantify the dissimilarity among 3D images, surface comparison approach based on aligned 3D meshes and closest point-to-point distances was carried out in Fidentis Analyst application. The study revealed that sexual dimorphism was indeed one of the factors which determined the extent and characteristics of facial deformations recorded for the studied expressions. In order to produce a grimace, males showed a tendency towards extending their facial movements while females were generally more restrained. Furthermore, the facial movements linked to the wide smile and “u” sound were revealed as the most extensive relative to the other expressions, while the smile and surprise were shown indistinguishable from the neutral face.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10600 - Biological sciences
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
HOMO - Journal of Comparative Human Biology
ISSN
0018-442X
e-ISSN
1618-1301
Volume of the periodical
69
Issue of the periodical within the volume
3
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
98-109
UT code for WoS article
000442714800003
EID of the result in the Scopus database
2-s2.0-85049879816