Keupp, Stefanie

[["dc.bibliographiccitation.firstpage","417"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Animal Cognition"],["dc.bibliographiccitation.lastpage","428"],["dc.bibliographiccitation.volume","19"],["dc.contributor.author","Schmitt, Vanessa"],["dc.contributor.author","Federspiel, Ira"],["dc.contributor.author","Eckert, Johanna"],["dc.contributor.author","Keupp, Stefanie"],["dc.contributor.author","Tschernek, Laura"],["dc.contributor.author","Faraut, Lauriane"],["dc.contributor.author","Schuster, Richard"],["dc.contributor.author","Michels, Corinna"],["dc.contributor.author","Sennhenn-Reulen, Holger"],["dc.contributor.author","Bugnyar, Thomas"],["dc.contributor.author","Mussweiler, Thomas"],["dc.contributor.author","Fischer, Julia"],["dc.date.accessioned","2017-09-07T11:47:09Z"],["dc.date.available","2017-09-07T11:47:09Z"],["dc.date.issued","2016"],["dc.description.abstract","Social comparisons are a fundamental characteristic of human behaviour, yet relatively little is known about their evolutionary foundations. Adapting the co-acting paradigm from human research (Seta in J Pers Soc Psychol 42:281–291, 1982. doi:10.1037//0022-3514.42.2.281, we examined how the performance of a partner influenced subjects’ performance in long-tailed macaques (Macaca fascicularis). Using parallel testing in touch screen setups in which subjects had to discriminate familiar and novel photographs of men and women, we investigated whether accuracy and reaction time were influenced by partner performance and relationship quality (affiliate vs. non-affiliate). Auditory feedback about the alleged performance of the co-actor was provided via playback; partner performance was either moderately or extremely better or worse than subject performance. We predicted that subjects would assimilate to moderately different comparison standards as well as to affiliates and contrast away from extreme standards and non-affiliates. Subjects instantly generalized to novel pictures. While accuracy was not affected by any of the factors, long reaction times occurred more frequently when subjects were tested with a non-affiliate who was performing worse, compared to one who was doing better than them (80 % quantile worse: 5.1, better: 4.3 s). For affiliate co-actors, there was no marked effect (worse: 4.4, better: 4.6 s). In a control condition with no auditory feedback, subjects performed somewhat better in the presence of affiliates (M = 77.8 % correct) compared to non-affiliates (M = 71.1 %), while reaction time was not affected. Apparently, subjects were sensitive to partner identity and performance, yet variation in motivation rather than assimilation and contrast effects may account for the observed effects."],["dc.identifier.doi","10.1007/s10071-015-0943-4"],["dc.identifier.gro","3150634"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/7413"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.issn","1435-9448"],["dc.subject","Co-acting paradigm; Evolution; Inequity aversion; Meta-cognition; Monkeys; Non-human primates; Social comparison processes; Social relationships"],["dc.title","Do monkeys compare themselves to others?"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","20180784"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Biology Letters"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Keupp, Stefanie"],["dc.contributor.author","Titchener, Rowan"],["dc.contributor.author","Bugnyar, Thomas"],["dc.contributor.author","Mussweiler, Thomas"],["dc.contributor.author","Fischer, Julia"],["dc.date.accessioned","2020-05-05T14:30:28Z"],["dc.date.available","2020-05-05T14:30:28Z"],["dc.date.issued","2019"],["dc.description.abstract","Humans modulate their self-evaluations and behaviour as a function of conspecific presence and performance. In this study, we tested for the presence of human-like social comparison effects in long-tailed macaques ( Macaca fascicularis). The monkeys' task was to extract food from an apparatus by pulling drawers within reach and we measured latency between drawer pulls. Subjects either worked on the task with a partner who could access the apparatus from an adjacent cage, worked in the absence of a conspecific but with food moving towards the partner's side or worked next to a partner who was denied apparatus access. We further manipulated partner performance and competitiveness of the set-up. We found no indication that long-tailed macaques compare their performance to the performance of conspecifics. They were not affected by the mere presence of the partner but they paid close attention to the partner's actions when they were consequential for food availability. If social comparison processes are present in long-tailed macaques, the present study suggests they may only manifest in situations involving direct competition and would thus be different from social comparisons in humans, which manifest also in the absence of direct competition, for example in evaluative contexts."],["dc.identifier.doi","10.1098/rsbl.2018.0784"],["dc.identifier.pmid","30890067"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/64868"],["dc.language.iso","en"],["dc.relation.eissn","1744-957X"],["dc.relation.issn","1744-9561"],["dc.title","Competition is crucial for social comparison processes in long-tailed macaques"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.contributor.author","Keupp, Stefanie"],["dc.contributor.author","Titchener, Rowan"],["dc.contributor.author","Bugnyar, Thomas"],["dc.contributor.author","Mussweiler, Thomas"],["dc.contributor.author","Fischer, Julia"],["dc.date.accessioned","2019-07-30T07:07:20Z"],["dc.date.available","2019-07-30T07:07:20Z"],["dc.date.issued","2018"],["dc.description.abstract","Humans modulate their self-evaluations and behaviour as a function of conspecific presence and performance. In this study we tested for the presence of human-like social comparison effects in long-tailed macaques (Macaca fascicularis). The monkeys’ task was to extract food from an apparatus by pulling drawers within reach and we measured latency between drawer-pulls. Subjects either worked on the task with a partner who could access the apparatus from an adjacent cage or worked with a partner present who was denied apparatus access. Alternatively, they worked in the absence of a conspecific present but with food moving towards the partner’s side. We further manipulated partner performance and competitiveness of the setup. We found no indication that long-tailed macaques compare their performance to the performance of conspecifics. They were not affected by the mere presence of the partner but they paid close attention to the partner’s actions when they were consequential for food availability. If social comparison processes are present in long-tailed macaques, the present study suggests they may only manifest in situations involving direct competition and would thus be different from social comparisons in humans, which manifest also in the absence of direct competition, for example in evaluative contexts."],["dc.identifier.doi","10.31234/osf.io/aqg3t"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/62158"],["dc.language.iso","en"],["dc.title","Competition is crucial for social comparison processes in long-tailed macaques"],["dc.type","preprint"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]