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Are there nonverbal cues to commitment? An exploratory study using the zero-acquaintance video presentation paradigm
Altruism is difficult to explain evolutionarily if subtle cheaters exist in a population (Trivers, 1971). A pathway to the evolutionary maintenance of cooperation is nonverbal altruist-detection. One adaptive advantage of nonverbal altruist-detection is the formation of trustworthy division of labour partnerships (Frank, 1988). Three studies were designed to test a fundamental assumption behind altruistic partner preference models. In the first experiment perceivers (blind with respect to target altruism level) made assessments of video-clips depicting self-reported altruists and self-reported non-altruists. Video-clips were designed with attempts to control for attractiveness, expressiveness, role-playing ability, and verbal content. Overall perceivers rated altruists as more “helpful” than non-altruists. In a second experiment manipulating the payoffs for cooperation, perceivers (blind with respect to payoff condition and altruism level) assessed altruists who were helping others as more “concerned” and “attentive” than non-altruists. However perceivers assessed the same altruists as less “concerned” and “attentive” than non-altruists when the payoffs were for self. This finding suggests that perceivers are sensitive to nonverbal indicators of selfishness. Indeed the self-reported non-altruists were more likely than self-reported altruists to retain resources for themselves in an objective measure of cooperative tendencies (i.e. a dictator game). In a third study altruists and non-altruists’ facial expressions were analyzed. The smile emerged as a consistent cue to altruism. In addition, altruists exhibited more expressions that are under involuntary control (e.g., orbicularis oculi) compared to non-altruists. Findings
Are there nonverbal cues to commitment?
suggest that likelihood to cooperate is signaled nonverbally and the putative cues may be under involuntary control as predicted by Frank (1988)
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Smile asymmetries and reputation as reliable indicators of likelihood to cooperate: An evolutionary analysis
Cooperating with individuals whose altruism is not motivated by genuine prosocial emotions could have been costly in ancestral division of labour partnerships. How do humans ‘know’ whether or not an individual has the prosocial emotions committing future cooperation? Frank (1988) has hypothesized two pathways for altruist-detection: (a) facial expressions of emotions signalling character; and (b) gossip regarding the target individual’s reputation. Detecting non-verbal cues signalling commitment to cooperate may be one way to avoid the costs of exploitation. Spontaneous smiles while cooperating may be reliable index cues because of the physiological constraints controlling the neural pathways mediating involuntary emotional expressions. Specifically, it is hypothesized that individuals whose help is mediated by a genuine sympathy will express involuntary smiles (which are observably different from posed smiles). To investigate this idea, 38 participants played dictator games (i.e. a unilateral resource allocation task) against cartoon faces with a benevolent emotional expression (i.e. concern furrows and smile). The faces were presented with information regarding reputation (e.g. descriptions of an altruistic character vs. a non-altruistic character). Half of the sample played against icons with symmetrical smiles (representing a spontaneous smile) while the other half played against asymmetrically smiling icons (representing a posed smile). Icons described as having altruistic motives received more resources than icons described as self-interested helpers. Faces with symmetrical smiles received more resources than faces with asymmetrical smiles. These results suggest that reputation and smile asymmetry influence the likelihood of cooperation and thus may be reliable cues to altruism. These cues may allow for altruists to garner more resources in division of labour situations
Toward a second-person neuroscience
LS & BT : equal contributions (shared first-authorship)Peer reviewedPreprin
Pride and Status: Unpacking Two Divergent Pathways to Cooperation
Cooperation is essential for addressing social dilemma problems, especially in modern society with rapidly growing human populations and changing ecology. The scientific community and policymakers have recognized the potential of emotions to facilitate effective communication of sustainability and large-scale cooperation. However, research has not yet explored which emotions are specifically linked to promoting cultures of cooperation and sustainability. This dissertation focuses on pride and its proposed dual nature in influencing prosocial motivations through status hierarchy. According to a prominent theory, pride consists of authentic pride and hubristic pride, both of which are tied to different types of status attainment, prestige and dominance. The main behavioral experiment in this study involved creating a status hierarchy and using the Ultimatum Game (UG) to test novel hypotheses. It was found that participants were more willing to offer a fair split of money to opponents who displayed a prestigious expression after outperforming them in three cognitive tasks. However, when participants played against a superior opponent who displayed dominance after outperforming them, they were no more likely to offer money compared to a neutral condition without any status differentiation. The results have important implications for the current literature on the relationship between pride and status and its role in promoting cooperation. Additionally, this research has practical applications, but there are several limitations that should be acknowledged. Future directions for further research challenging the two-facet theory of pride/status are discussed. Overall, this dissertation contributes to the understanding of the complex role of pride in cooperation and sheds light on the dynamics of human social interactions and status hierarchies
Being tough doesn’t always pay off: The culture of honor vs dignity in negotiation
Early work on cross-cultural negotiation has focused on East-West differences. In the current study we investigate the negotiation scripts employed by Middle Eastern negotiators, more specifically Iranian negotiators, in an intracultural interaction, compared to North American negotiators. We examine how the Iranian worldviews, beliefs, norms, and social behavior influence their goals and aspirations, negotiation tactics, and ultimately final outcome. We formulated our hypotheses based on the theory of honor-dignity cultures and illustrate how the importance of preserving and maintaining honor influences the Iranian negotiation strategies in business dealings. Our results illustrate that consistent with the culture of honor, Iranian negotiators are more likely to be competitive, express emotions, and employ distributive tactics compared to Canadian negotiators. Moreover, this competitive mindset leaves Iranian negotiators at a disadvantage as the overall joint gain is significantly lower than Canadian negotiators
Helping and Cooperation in Children with Autism
Helping and cooperation are central to human social life. Here, we report two studies investigating these social behaviors in children with autism and children with developmental delay. In the first study, both groups of children helped the experimenter attain her goals. In the second study, both groups of children cooperated with an adult, but fewer children with autism performed the tasks successfully. When the adult stopped interacting at a certain moment, children with autism produced fewer attempts to re-engage her, possibly indicating that they had not formed a shared goal/shared intentions with her. These results are discussed in terms of the prerequisite cognitive and motivational skills and propensities underlying social behavior
Mindreading in a dog: an adaptation of a primate ‘mental attribution’ study
In the framework of a longitudinal case study on a male tervueren dog, Philip, the present paper was aimed to get a more sophisticated insight into the cognitive functioning of the dog's mind. Our experiment was designed to study the dog's ability to recognize knowledge or ignorance in others. The procedure used here was identical to that used in an ape-study (Gómez & Teixidor, 1992) and therefore provides the possibility for direct dog-ape comparison regarding their performance. Results show that similarly to the case with this “enculturated” orangutan, after few trials Philip was able to adjust his communicative behaviour to the state of knowledge of his human partner and cooperated successfully in the problem solving task (getting the ball). The exact mechanism underlying this communicative behaviour is still not clear, and both low- and high-level explanations are considered. We suggest that this approach gives a new possibility to conduct comparative studies aimed to understand the evolution of social cognition
Coordination Matters : Interpersonal Synchrony Influences Collaborative Problem-Solving
The authors thank Martha von Werthern and Caitlin Taylor for their assistance with data collection, Cathy Macpherson for her assistance with the preparation of the manuscript, and Mike Richardson, Alex Paxton, and Rick Dale for providing MATLAB code to assist with data analysis. The research was funded by the British Academy (SG131613).Peer reviewedPublisher PD
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