Postconflict Behaviour in Brown Capuchin Monkeys (Cebus apella)

Daniel, João R.; Santos, António J.; Cruz, Mónica Guimarães

doi:10.1159/000258647

Cited by 17 publications

(15 citation statements)

References 49 publications

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“…After receiving aggression, the studied capuchin monkeys displayed signs of anxiety consistent with previous findings on Old World primates and strepsirrhines (reviewed in Arnold et al 2010;. Similar results were also obtained in a captive group of tufted capuchin monkeys (Daniel et al 2009). The reported lack of post-conflict anxiety in white-faced capuchin monkeys might be possibly due to either a small number of conflicts on which these analyses were based (Manson & Perry 2000) or to a lower severity of conflicts and to the supposedly shallower hierarchy in this species (Leca et al 2007).…”

Section: Discussionsupporting

confidence: 88%

“…Similar results were also obtained in a captive group of tufted capuchin monkeys (Daniel et al. ). The reported lack of post‐conflict anxiety in white‐faced capuchin monkeys might be possibly due to either a small number of conflicts on which these analyses were based (Manson & Perry ) or to a lower severity of conflicts and to the supposedly shallower hierarchy in this species (Leca et al.…”

Section: Discussionsupporting

confidence: 87%

“…In captive tufted capuchin monkeys ( Cebus apella ), post‐conflict SDB rates positively correlated with the intensity of aggressive conflicts (Daniel et al. ). In this study, we aimed at understanding the factors influencing the emotional responses of wild tufted capuchin monkeys ( Cebus apella nigritus ), using scratching as a behavioural indicator of anxiety.…”

Section: Introductionmentioning

confidence: 99%

“…The few studies that have previously investigated this issue reported that in white-faced capuchin monkeys (Cebus capucinus), SDBs were not affected by the dominance rank of individuals in proximity, by the occurrence of conflicts or by non-social variables such as height from the ground (which could be linked to predation risk; Manson & Perry 2000). In captive tufted capuchin monkeys (Cebus apella), post-conflict SDB rates positively correlated with the intensity of aggressive conflicts (Daniel et al 2009). In this study, we aimed at understanding the factors influencing the emotional responses of wild tufted capuchin monkeys (Cebus apella nigritus), using scratching as a behavioural indicator of anxiety.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Scratching as a Window into the Emotional Responses of Wild Tufted Capuchin Monkeys

Sorrentino¹,

Schino

Tiddi³

et al. 2012

Ethology

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Emotional responses to social interactions and the associated behavioural measures (e.g., self‐directed behaviours, SDBs) have been little studied in New World monkeys, especially in wild settings. In this study, we investigated the factors affecting anxiety in a wild group of tufted capuchin monkeys (Cebus apella nigritus) using self‐scratching (hereafter scratching) as its measure. Scratching was more strongly affected by the social context than by individual characteristics. Indeed, inter‐individual variability was not explained by the age, sex and dominance rank of the monkeys. The monkeys scratched themselves more often when being distant from other group members than when in close proximity with them, suggesting that even short‐distance separation from group members may be an important factor affecting capuchins emotional response. The risk of receiving aggression seemed also to elicit anxiety, as scratching was higher when in proximity to more dominant individuals and females, which were the categories of group members that were more aggressive. By contrast, scratching was lower when in proximity to more secure partners, like kin. Finally, scratching rates following the receipt of aggression were higher than at baseline, indicating a post‐conflict increase in anxiety. Overall, our results contribute to the understanding of the factors affecting emotional responses in capuchin monkeys, confirming and expanding previous findings in other animal species.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Scratching as a Window into the Emotional Responses of Wild Tufted Capuchin Monkeys

Sorrentino¹,

Schino

Tiddi³

et al. 2012

Ethology

View full text Add to dashboard Cite

show abstract

“…This facial expression appears in aggressive interactions and it is considered an agonistic display (Weigel 1978). Self-scratch is a useful index of anxiety (Maestripieri et al 1992;Manson and Perry 2003;Daniel et al 2009). To assess interobserver reliability, a second coder analyzed 20% of the trials.…”

Section: Scoring Of Subjects' Behaviormentioning

confidence: 99%

Capuchin monkeys (Cebus apella) modify their own behaviors according to a conspecific’s emotional expressions

Morimoto

Fujita

2011

Primates

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Understanding conspecifics' emotional states is important for managing social interactions. We examined whether capuchin monkeys modify their own behaviors in response to a conspecific's emotional expressions. Six monkeys saw a demonstrator monkey responding emotionally to an object in a container; the subject monkeys could not see the object. The subjects reached for the container more frequently when the demonstrator showed an emotionally positive expression than when she showed an emotionally neutral or negative expression. This is the first report that New World monkeys are sensitive to the emotional valence of conspecifics' emotional expressions. The finding is consistent with the hypothesis that monkeys can recognize emotional meanings in others' expressions, an ability previously attributed only to humans and great apes.

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Anything for a cheerio: Brown capuchins (Sapajus [Cebus] apella) consistently coordinate in an Assurance Game for unequal payoffs

Robinson

Martínez

Leverett

et al. 2021

American J Primatol

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Unequal outcomes disrupt cooperation in some situations, but this has not been tested in the context of coordination in economic games. To explore this, we tested brown capuchins (Sapajus [Cebus] apella) on a manual version of the Stag Hunt (or Assurance) Game, in which individuals sequentially chose between two options, Stag or Hare, and were rewarded according to their choices and that of their partner. Typically, coordination on Stag results in an equal highest payout, whereas coordinating on Hare results in a guaranteed equal but lower payoff and uncoordinated play results in the lowest payoff when playing Stag. We varied this structure such that one capuchin received double the rewards for the coordinated Stag outcome; thus, it was still both animals' best option, but no longer equally rewarding. Despite the inequality, capuchins coordinated on Stag in 78% of trials, and neither payoff structure nor their partner's choice impacted their decision. Additionally, there was no relationship between self‐scratching, a measure of stress in capuchins, and choices. After completing the study, we discovered our reward, cheerios, was sufficiently valuable that in another study, capuchins never refused it, so post hoc we repeated the study using a lower value reward, banana flavored pellets. Capuchins completed only 26% of the pellet trials (compared to 98% with cheerios), constraining our ability to interpret the results, but nonetheless the monkeys showed a decrease in preference for Stag, particularly when they received fewer rewards for the coordinated Stag outcome. These results reinforce capuchins' ability to find coordinated outcomes in the Stag Hunt game, but more work is needed to determine whether the monkeys did not mind the inequality or were unwilling to sacrifice a highly preferred food to rectify it. In either case, researchers should carefully consider the impact of their chosen rewards on subjects' choices.

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Postconflict Behaviour in Brown Capuchin Monkeys (Cebus apella)

Cited by 17 publications

References 49 publications

Scratching as a Window into the Emotional Responses of Wild Tufted Capuchin Monkeys

Scratching as a Window into the Emotional Responses of Wild Tufted Capuchin Monkeys

Capuchin monkeys (Cebus apella) modify their own behaviors according to a conspecific’s emotional expressions

Anything for a cheerio: Brown capuchins (Sapajus [Cebus] apella) consistently coordinate in an Assurance Game for unequal payoffs

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