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Implicit evaluation of the emotional response to premium organic herbal infusions through a temporal dominance approach: development of the Temporal Dominance of Facial Emotions (TDFE)

2019Journal article Restricted access
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dc.contributor.authorRocha, C.
dc.contributor.authorLima, R. C.
dc.contributor.authorMoura, Ana Pinto de
dc.contributor.authorCosta, T.
dc.contributor.authorCunha, Luís Miguel
dc.date.accessioned2020-01-31T14:27:00Z
dc.date.available2020-01-31T14:27:00Z
dc.date.issued2019
dc.description.abstractOne of the greatest challenges when designing research on emotions is the conception of an efficient tool for their measurement. The FaceReader™ emerged as an implicit tool capable of analysing facial expression patterns whether in recorded or real-time videos. This software produces large datasets on temporal variation of the intensity of basic emotions. The main goals of this research were: (i) to develop a new data analysis procedure, based on temporal dominance approaches to evaluate temporal data from Face Reader, called the Temporal Dominance of Facial Emotions (TDFE), (ii) to relate the results from TDFE with the EsSense Profile® evaluation, (iii) to evaluate different market samples and to establish its emotional profile. An untrained panel of 50 naïve panellists tasted five samples. For each infusion, the overall liking was evaluated using a 9-point scale (1-dislike extremely to 9-like extremely) followed by the evaluation of the emotional profile, using an adapted version of the EsSense Profile®. The entire test was video- recorded using web cameras placed in front of the panellists and adjusted, to obtain a correct measurement of their facial expressions. Significant differences (p ≤ 0.05) between samples were found for overall liking. The correlation between TDFE and EsSense Profile® was 0.704, above the reference value of 0.680. However, from both methods one can identify a clear emotional profile of the samples under evaluation. Both methodologies appear to be promising regarding the emotional profile characterization. However, the lower direct correlation can be explained by the difference in positive and negative emotions. FaceReader™ identifies more negative than positive emotions, while the EsSense Profile® identified the opposite. Therefore, both approaches should be regarded as complementary.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doihttps://doi.org/10.1016/j.foodqual.2019.04.001pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.2/9136
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectEsSense Profile®pt_PT
dc.subjectImplicit methodpt_PT
dc.subjectOverall likingpt_PT
dc.subjectFaceReader™pt_PT
dc.subjectTemporal dominance of emotionspt_PT
dc.subjectLemon verbenapt_PT
dc.titleImplicit evaluation of the emotional response to premium organic herbal infusions through a temporal dominance approach: development of the Temporal Dominance of Facial Emotions (TDFE)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/COMPETE/PEst-C%2FEQB%2FLA0006%2F2013/PT
oaire.citation.titleFood Quality and Preferencept_PT
oaire.fundingStreamCOMPETE
person.familyNameMoura
person.familyNameCunha
person.givenNameAna Pinto de
person.givenNameLuís Miguel
person.identifierR-000-0Z4
person.identifier.ciencia-idEE1F-27E6-C356
person.identifier.orcid0000-0001-9197-8183
person.identifier.orcid0000-0003-3536-4712
person.identifier.ridD-6395-2013
person.identifier.scopus-author-id51161546800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication373ffc01-22ea-4dc1-99d4-2107f71b24a6
relation.isAuthorOfPublication.latestForDiscoveryb1210435-fc7f-46ac-a4e7-d12dec22a394
relation.isProjectOfPublication4e56e549-994b-485c-a2c1-11175da88dec
relation.isProjectOfPublication.latestForDiscovery4e56e549-994b-485c-a2c1-11175da88dec

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