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dc.contributor.authorSimpson, Elizabeth Ann
dc.date.accessioned2014-03-04T03:22:56Z
dc.date.available2014-03-04T03:22:56Z
dc.date.issued2008-05
dc.identifier.othersimpson_elizabeth_a_200805_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/simpson_elizabeth_a_200805_ms
dc.identifier.urihttp://hdl.handle.net/10724/24758
dc.description.abstractNaïve and "monkey expert" human participants viewed a variety of human and monkey (Cebus apella) facial expressions (e.g. happiness, anger, fear, disgust, and neutral) in three experiments: (1) search task in which expression was task-irrelevant, (2) speed rating in which participants categorized expressions’ valence, and (3) slow rating in which participants indicated expressions’ emotion-type and intensity. Button-press latencies in Experiment 1 varied as a function of expression and species. Experiments 2 and 3 revealed individual differences for both sex and expertise. Females were more sensitive to negative monkey expressions, while males were more sensitive to positive monkey expressions. This demonstrates that sex differences in expression perception may extend to the processing of nonhumans’ faces. Naïve participants were less accurate at rating monkey expressions, but still well above chance performance. This highlights the role of experience and evolutionary continuity in cross-species emotion perception.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectfacial expression
dc.subjectemotion
dc.subjectrating
dc.subjectcapuchin monkey
dc.subjectreaction time
dc.titlePerception of facial expressions
dc.title.alternativehow humans rate and respond to monkey and human faces
dc.typeThesis
dc.description.degreeMS
dc.description.departmentPsychology
dc.description.majorPsychology
dc.description.advisorDorothy Fragaszy
dc.description.committeeDorothy Fragaszy
dc.description.committeeAnnett Schirmer
dc.description.committeeMichael Owren
dc.description.committeeJanet Frick
dc.description.committeeIrwin Bernstein


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