Patterns of correlation of facial shape with physiological measurements are more integrated than patterns of correlation with ratings

Autor(en)

Sonja Windhager, Fred Bookstein, Eva Millesi, Bernard Wallner, Katrin Schäfer

Abstrakt

This article exploits a method recently incorporated in the geometric morphometric toolkit that complements previous approaches to quantifying the facial features associated with specific body characteristics and trait attribution during social perception. The new method differentiates more globally encoded from more locally encoded information by a summary scaling dimension that is estimated by fitting a line to the plot of log bending energy against log variance explained, partial warp by partial warp, for some sample of varying shapes. In the present context these variances come from the regressions of shape on some exogenous cause or effect of form. We work an example involving data from male faces. Here the regression slopes are steepest, and the sums of explained variances over the uniform component, partial warp 1 and partial warp 2 are greatest, for the conventional body mass index, followed by cortisol and, lastly, perceived health. This suggests that physiological characteristics may be represented at larger scale (global patterns), whereas cues in perception are of smaller scale (local patterns). Such a polarity within psychomorphospace, the global versus the focal, now has a metric by which patterns of morphology can be modeled in both biological and psychological studies.

Organisation(en)

Department für Evolutionäre Anthropologie, Core Facility KLF für Verhaltens- und Kognitionsbiologie, Besondere Einrichtung für Qualitätssicherung

Journal

Scientific Reports

Band

7

Anzahl der Seiten

11

ISSN

2045-2322

DOI

https://doi.org/10.1038/srep45340

Publikationsdatum

03-2017

Peer-reviewed

Ja

ÖFOS 2012

106018 Humanbiologie

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/15cccff5-9878-4109-87f2-71624e87cdda