Evidence map›Paper›PMID 32804342›Full record

ArticleBehavior research methods2021

Human and machine validation of 14 databases of dynamic facial expressions.

Eva G Krumhuber, Dennis Küster, Shushi Namba, Lina Skora

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In one paragraph

Article in Behavior research methods, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

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0cells of the map it votes in
28citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

28 citing papers in PubMed.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

4 authors.

Eva G KrumhuberDepartment of Experimental Psychology, University College London, 26 Bedford Way, London, WC1H 0AP, UK. e.krumhuber@ucl.ac.uk.ORCID 0000-0003-1894-2517
Dennis KüsterUniversity of Bremen, Bremen, Germany.
Shushi NambaHiroshima University, Hiroshima, Japan.
Lina SkoraDepartment of Experimental Psychology, University College London, 26 Bedford Way, London, WC1H 0AP, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

With a shift in interest toward dynamic expressions, numerous corpora of dynamic facial stimuli have been developed over the past two decades. The present research aimed to test existing sets of dynamic facial expressions (published between 2000 and 2015) in a cross-corpus validation effort. For this, 14 dynamic databases were selected that featured facial expressions of the basic six emotions (anger, disgust, fear, happiness, sadness, surprise) in posed or spontaneous form. In Study 1, a subset of stimuli from each database (N = 162) were presented to human observers and machine analysis, yielding considerable variance in emotion recognition performance across the databases. Classification accuracy further varied with perceived intensity and naturalness of the displays, with posed expressions being judged more accurately and as intense, but less natural compared to spontaneous ones. Study 2 aimed for a full validation of the 14 databases by subjecting the entire stimulus set (N = 3812) to machine analysis. A FACS-based Action Unit (AU) analysis revealed that facial AU configurations were more prototypical in posed than spontaneous expressions. The prototypicality of an expression in turn predicted emotion classification accuracy, with higher performance observed for more prototypical facial behavior. Furthermore, technical features of each database (i.e., duration, face box size, head rotation, and motion) had a significant impact on recognition accuracy. Together, the findings suggest that existing databases vary in their ability to signal specific emotions, thereby facing a trade-off between realism and ecological validity on the one end, and expression uniformity and comparability on the other.

Indexed as

EmotionsFacial ExpressionAngerHappinessHumansRecognition, PsychologyDatabaseDynamicEmotionFacial expressionFACSMachine analysis

Identifiers

PMID32804342
PMCPMC8062366

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.