Mothers’ pupillary responses to infant facial expressions

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dc.contributor.authorYrttiaho, Santerien_ZA
dc.contributor.authorNiehaus, Danaen_ZA
dc.contributor.authorThomas, Eileenen_ZA
dc.contributor.authorLeppanen, Jukka M.en_ZA
dc.date.accessioned2017-02-07T07:25:36Z
dc.date.available2017-02-07T07:25:36Z
dc.date.issued2017-02-06
dc.date.updated2017-02-07T07:04:25Z
dc.descriptionCITATION: Yrttiaho, S., et al. 2017. Mothers’ pupillary responses to infant facial expressions. Behavioral and Brain Functions, 13:2, doi:10.1186/s12993-017-0120-9.
dc.descriptionThe original publication is available at https://behavioralandbrainfunctions.biomedcentral.com
dc.description.abstractENGLISH SUMMARY : Background: Human parental care relies heavily on the ability to monitor and respond to a child’s affective states. The current study examined pupil diameter as a potential physiological index of mothers’ affective response to infant facial expressions. Methods: Pupillary time-series were measured from 86 mothers of young infants in response to an array of photographic infant faces falling into four emotive categories based on valence (positive vs. negative) and arousal (mild vs. strong). Results: Pupil dilation was highly sensitive to the valence of facial expressions, being larger for negative vs. positive facial expressions. A separate control experiment with luminance-matched non-face stimuli indicated that the valence effect was specific to facial expressions and cannot be explained by luminance confounds. Pupil response was not sensitive to the arousal level of facial expressions. Conclusions: The results show the feasibility of using pupil diameter as a marker of mothers’ affective responses to ecologically valid infant stimuli and point to a particularly prompt maternal response to infant distress cues.
dc.description.urihttps://behavioralandbrainfunctions.biomedcentral.com/articles/10.1186/s12993-017-0120-9
dc.description.versionPublisher's version
dc.format.extent12 pages ; illustrations
dc.identifier.citationYrttiaho, S., et al. 2017. Mothers’ pupillary responses to infant facial expressions. Behavioral and Brain Functions, 13:2, doi:10.1186/s12993-017-0120-9.
dc.identifier.issn1744-9081 (online)
dc.identifier.otherdoi:10.1186/s12993-017-0120-9
dc.identifier.urihttp://hdl.handle.net/10019.1/100595
dc.language.isoen_ZAen_ZA
dc.publisherBioMed Central
dc.rights.holderAuthor retains copyright
dc.subjectPupil (Eye) -- Physiological aspectsen_ZA
dc.subjectPupillometricsen_ZA
dc.subjectEmotion recognitionen_ZA
dc.subjectFacial expressionen_ZA
dc.subjectMother and infanten_ZA
dc.titleMothers’ pupillary responses to infant facial expressionsen_ZA
dc.typeArticle
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