高确定性情绪（开心、愤怒）与低确定性情绪（悲伤）对信任的影响

本研究通过信任游戏的实验范式探讨了在与“受信任者”高/低可信赖性有关的信任线索时,具体情绪的确定性维度对信任行为的影响。实验一发现,当被试被告知“受信任者”在可信赖量表上的得分（高/低）时,个体在高确定性情绪（开心和愤怒）下的信任判断比低确定性情绪（悲伤）下的信任判断上更容易被受信任者的“可信赖性”水平的高低所影响;实验二发现,当告知被试“受信任者”的群体身份（内/外群）时,个体在高确定性情绪（开心和愤怒）下的信任判断比低确定性情绪（悲伤）下的信任判断更容易被受信任者的“内外群”身份所影响。上述结果表明,高确定性的情绪比低确定性的情绪更容易使被试的信任判断受到与“受信任者”是否值得信赖有关的线索所影响。     

Friend or foe: the effect of implicit trustworthiness judgments in social decision-making

The human face appears to play a key role in signaling social intentions and usually people form reliable and strong impressions on the basis of someone's facial appearance. Therefore, facial signals could have a substantial influence on how people evaluate and behave towards another person in a social interaction, such as an interactive risky decision-making game. Indeed, there is a growing body of evidence that demonstrates that social behavior plays a crucial role in human decision-making. Although previous research has demonstrated that explicit social information about one's partner can influence decision-making behavior, such as knowledge about the partner's moral status, much less is known about how implicit facial social cues affect strategic decision-making. One particular social cue that may be especially important in assessing how to interact with a partner is facial trustworthiness, a rapid, implicit assessment of the likelihood that the partner will reciprocate a generous gesture. In this experiment, we tested the hypothesis that implicit processing of trustworthiness is related to the degree to which participants cooperate with previously unknown partners. Participants played a Trust Game with 79 hypothetical partners who were previously rated on subjective trustworthiness. In each game, participants made a decision about how much to trust their partner, as measured by how much money they invested with that partner, with no guarantee of return. As predicted, people invested more money in partners who were subjectively rated as more trustworthy, despite no objective relationship between these factors. Moreover, the relationship between the amount of money offered seemed to be stronger for trustworthy faces as compared to untrustworthy faces. Overall, these data indicate that the perceived trustworthiness is a strong and important social cue that influences decision-making.     

Judging trustworthiness from faces: Emotion cues modulate trustworthiness judgments in young children

By adulthood, people judge trustworthiness from appearances rapidly and reliably. However, we know little about these judgments in children. This novel study investigates the developmental trajectory of explicit trust judgments from faces, and the contribution made by emotion cues across age groups. Five‐, 7‐, 10‐year‐olds, and adults rated the trustworthiness of trustworthy and untrustworthy faces with neutral expressions. The same participants also rated faces displaying overt happy and angry expressions, allowing us to investigate whether emotion cues modulate trustworthiness judgments similarly in children and adults. Results revealed that the ability to evaluate the trustworthiness of faces emerges in childhood, but may not be adult like until 10 years of age. Moreover, we show that emotion cues modulate trust judgments in young children, as well as adults. Anger cues diminished the appearance of trustworthiness for participants from 5 years of age and happy cues increased it, although this effect did not consistently emerge until later in childhood, that is, 10 years of age. These associations also extended to more subtle emotion cues present in neutral faces. Our results indicate that young children are sensitive to facial trustworthiness, and suggest that similar expression cues modulate these judgments in children and adults.     

Abnormalities in early visual processes are linked to hypersociability and atypical evaluation of facial trustworthiness: An ERP study with Williams syndrome

Accurate assessment of trustworthiness is fundamental to successful and adaptive social behavior. Initially, people assess trustworthiness from facial appearance alone. These assessments then inform critical approach or avoid decisions. Individuals with Williams syndrome (WS) exhibit a heightened social drive, especially toward strangers. This study investigated the temporal dynamics of facial trustworthiness evaluation in neurotypic adults (TD) and individuals with WS. We examined whether differences in neural activity during trustworthiness evaluation may explain increased approach motivation in WS compared to TD individuals. Event-related potentials were recorded while participants appraised faces previously rated as trustworthy or untrustworthy. TD participants showed increased sensitivity to untrustworthy faces within the first 65–90 ms, indexed by the negative-going rise of the P1 onset (oP1). The amplitude of the oP1 difference to untrustworthy minus trustworthy faces was correlated with lower approachability scores. In contrast, participants with WS showed increased N170 amplitudes to trustworthy faces. The N170 difference to low–high-trust faces was correlated with low approachability in TD and high approachability in WS. The findings suggest that hypersociability associated with WS may arise from abnormalities in the timing and organization of early visual brain activity during trustworthiness evaluation. More generally, the study provides support for the hypothesis that impairments in low-level perceptual processes can have a cascading effect on social cognition.     

Perceived trustworthiness of faces drives trust behaviour in children

Facial appearances can powerfully influence adults' trust behaviour, despite limited evidence that these cues constitute honest signals of trustworthiness. It is not clear, however, whether the same is also true for children. The current study investigated whether, like adults, 5‐year‐olds and 10‐year‐olds are more likely to place their trust in partners that look trustworthy than those that look untrustworthy. A second, closely related question was whether children also explicitly value the information from face cues when making trust decisions. We investigated these questions using Token Quest: an economic trust game that gave participants the opportunity to make investments with a series of partners who might (or might not) repay their trust with large returns. These interactions occurred under different conditions, including one in which participants were shown the face of each partner and another in which they could ‘purchase’ access to faces with a portion of their investment capital. Results indicated that, like adults, 10‐year‐old children selectively placed their trust in those partners they perceived as looking trustworthy and many were willing to ‘pay’ to purchase access to these face cues during the trust game. We observed a similar profile of trust behaviour in 5‐year‐olds, with no significant group difference in the impact of face cues on behaviour across the three age groups. Together, these findings indicate that the influence of face cues on trust behaviour emerges early, and highlight a capacity for sophisticated social cognition in young children.     

Interpersonal relationships moderate the effect of faces on person judgments

Previous research suggests that people form impressions of others based on their facial appearance in a very fast and automatic manner, and this especially holds for trustworthiness. However, as yet, this process has been investigated mostly in a social vacuum without taking interpersonal factors into account. In the current research, we demonstrate that both the relationship context that is salient at the moment of an interaction and the performed behavior are important moderators of the impact of facial cues on impression formation. It is shown that, when the behavior of a person we encounter is ambiguous in terms of trustworthiness, the relationship most salient at that moment is of crucial impact on whether and how we incorporate facial cues communicating (un)trustworthiness in our final evaluations. Ironically, this can result in less positive evaluations of interaction partners with a trustworthy face compared to interaction partners with an untrustworthy face. Implications for research on facial characteristics, trust, and relationship theories are discussed. Copyright © 2008 John Wiley & Sons, Ltd.     

信任倾向和面孔可信度对小学儿童信任判断的影响

该研究考察了7、9、11岁小学儿童对陌生人信任判断的发展特点,以及信任方的信任倾向和被信任方的面孔可信度在儿童信任判断中的作用特点及其发展特征。结果发现：（1）7、9、11岁小学儿童基于面孔对陌生他人进行的信任判断中,9、11岁儿童的信任水平要高于7岁儿童;（2）在信任判断中,陌生交往者的面孔可信度对7、9和11岁儿童的信任判断都具有显著的影响作用,即相对于具有不可信面孔的陌生人,儿童更愿意相信具有可信面孔的陌生人;此外,信任倾向对于信任判断的影响作用则存在一定的年龄间差异,7岁儿童的信任倾向对信任判断无影响,9和11岁儿童的信任倾向正向预测儿童对陌生人的信任水平,即相对于信任倾向低的儿童,信任倾向高的儿童对陌生人的信任水平也越高;（3）被信任方的面孔可信度在小学儿童信任判断中的影响作用要大于儿童自身的信任倾向的影响作用。这些结果表明儿童对他人的信任水平随着年龄的增长而提高;对于陌生人,小学儿童主要依据被信任方相关的可信特征线索做出相应的信任判断。     

Replicating distinctive facial features in lineups: identification performance in young versus older adults

Criminal suspects with distinctive facial features, such as tattoos or bruising, may stand out in a police lineup. To prevent suspects from being unfairly identified on the basis of their distinctive feature, the police often manipulate lineup images to ensure that all of the members appear similar. Recent research shows that replicating a distinctive feature across lineup members enhances eyewitness identification performance, relative to removing that feature on the target. In line with this finding, the present study demonstrated that with young adults (n = 60; mean age = 20), replication resulted in more target identifications than did removal in target-present lineups and that replication did not impair performance, relative to removal, in target-absent lineups. Older adults (n = 90; mean age = 74) performed significantly worse than young adults, identifying fewer targets and more foils; moreover, older adults showed a minimal benefit from replication over removal. This pattern is consistent with the associative deficit hypothesis of aging, such that older adults form weaker links between faces and their distinctive features. Although replication did not produce much benefit over removal for older adults, it was not detrimental to their performance. Therefore, the results suggest that replication may not be as beneficial to older adults as it is to young adults and demonstrate a new practical implication of age-related associative deficits in memory.     

4～6岁幼儿经济博弈中的信任行为及其影响因素

本研究通过两个实验考察幼儿是否在博弈任务中表现出对陌生人的信任行为,同时考察可能对幼儿的信任产生影响的因素,包括个体认知因素(观点采择)和环境因素(负性反馈和代际传递)。研究对189名4~6岁幼儿及其家长进行多种任务的测量。实验一通过修订Evans和Krugger(2011)的信任博弈任务,考察幼儿在匿名信任博弈中的信任行为,结果发现与4岁幼儿相比,6岁幼儿对他人的信任更低;实验二考察了幼儿信任的影响因素,结果发现,幼儿在得到负性反馈结果后再次进行信任博弈任务时,他们对他人的信任比前次有所降低,6岁幼儿对他人返还数量的预期比4岁幼儿下降程度更大;6岁幼儿的信任行为(第一次给出意愿)与观点采择能力显著相关;6岁幼儿的信任水平与家长的信任水平显著相关。     

The Hidden Cost of Insurance on Cooperation

A common solution to mitigate risk is to buy insurance. Employing the trust game, we find that buying insurance against the risk of betrayal has a hidden cost: trustees are more likely to act opportunistically when trustors choose to be insured against the breach of trust. Supposedly, trustees are less likely to cooperate when trustors buy insurance because choosing insurance implicitly signals that the trustor expects the trustee to behave opportunistically, paradoxically encouraging trustees not to cooperate. These results shed new light on the potential drawbacks of financial safeguards that are intended to minimize the risky nature of trust taking: the presumed safeguard against the risk of betrayal may, under certain circumstances, increase the probability of betrayal. Copyright © 2017 John Wiley & Sons, Ltd.     

Trust matters: Seeing how an adult treats another person influences preschoolers' willingness to delay gratification

Holding out for a delayed reward in the face of temptation is notoriously difficult, and the ability to do so in childhood predicts diverse indices of life success. Prominent explanations focus on the importance of cognitive control. However, delaying gratification may also require trust in people delivering future rewards as promised. Only limited experimental work has tested this idea, and such studies with children were focused on general reward expectations, so evidence was ambiguous as to whether social trust played a role. The present study provides the first targeted test of a role for social trust in children's willingness to delay gratification. Children observed an adult behave in either a trustworthy or untrustworthy manner toward another adult, then were tested in the classic delay of gratification task by that adult. Children were less likely to wait the full delay period, and waited less time overall, for a reward promised by an untrustworthy adult, relative to children tested by a trustworthy adult. These findings demonstrate that manipulations of social trust influence delaying gratification, and highlight intriguing alternative reasons to test for individual differences in delaying gratification and associated life outcomes.     

Individual Differences in Habitual Social Goals and Daily Well‐Being: The Role of Age and Relationship Closeness

There is a robust evidence that social approach goals (i.e. approach of positive social outcomes) have positive consequences and social avoidance goals (i.e. avoidance of negative social outcomes) have negative consequences for subjective well‐being in young adulthood. Little is known about individual differences in social goals in later life. The current diary study with young (n = 212), middle‐aged (n = 232), and older adults (n = 229) tested––and supported––the hypotheses that age (i) differentially predicts the strength of habitual approach and avoidance goals in close and peripheral relationships and (ii) moderates the relation of approach and avoidance goals in peripheral (but not close) relationships and daily outcomes (subjective well‐being, subjective health, and satisfaction with social encounters). Older adults compared to younger adults reported higher levels of avoidance goals in peripheral (but not close) relationships. Younger adults who reported high levels of approach goals and older adults who reported high levels of avoidance goals in peripheral relationships experienced the most positive daily outcomes. In addition, social goals moderated some of the associations between (positive and negative) daily interactions and daily outcomes. Results underscore the importance of the closeness of social partners for individual differences in social goals across adulthood. © 2019 European Association of Personality Psychology     

Age-related decline in executive function predicts better advice-giving in uncomfortable social contexts

Conventional wisdom suggests that older adults are more likely than young adults to speak their mind. Age-related executive function (EF) decline is believed to underlie this tendency by weakening older adults' capacity to inhibit responses. While age-related EF decline disrupts social and cognitive functioning in many domains, such degeneration may also carry the unforeseen benefit of improving communication in uncomfortable social contexts. We examined the performance of relatively low and high EF older adults and young adults on the socially distressing task of providing critical advice to a troubled obese teenager. Relative to higher EF older adults and younger adults, lower EF older adults were more open, provided more advice, and were seen as more empathic. Moreover, doctors specializing in obesity treatment rated lower EF older adults’ advice to the teen as having greater potential for prompting a lifestyle change. Our findings suggest a potential silver lining to age-related cognitive decline.     

To trust or not to trust: social decision‐making in post‐institutionalized,internationally adopted youth

Chronic parental maltreatment has been associated with lower levels of interpersonal trust, and depriving environments have been shown to predict short‐sighted, risk‐averse decision‐making. The present study examined whether a circumscribed period of adverse care occurring only early in life was associated with biases in trust behavior. Fifty‐three post‐institutionalized (PI) youth, adopted internationally on average by 1 year of age, and 33 never‐institutionalized, non‐adopted youth (M_age = 12.9 years) played a trust game. Participants decided whether or not to share coins with a different anonymous peer in each trial with the potential to receive a larger number of coins in return. Trials were presented in blocks that varied in the degree to which the peers behaved in a trustworthy (reciprocal) or untrustworthy (non‐reciprocal) manner. A comparison condition consisted of a computerized lottery with the same choices and probabilistic risk as the peer trials. Non‐adopted comparison youth showed a tendency to share more with peers than to invest in the lottery and tended to maintain their level of sharing across trials despite experiencing trials in which peers failed to reciprocate. In contrast, PI children, particularly those who were adopted over 1 year of age, shared less with peers than they invested in the lottery and quickly adapted their sharing behavior to peers’ responses. These results suggest that PI youth were more mistrusting, more sensitive to both defection and reciprocation, and potentially more accurate in their trusting decisions than comparison youth. Results support the presence of a sensitive period for the development of trust in others, whereby conditions early in life may set long‐term biases in decision‐making.     

An intermediary enhances out‐group trust and in‐group profit expectation of Chinese but not Australians

In this research, we made a theoretical distinction between direct and intermediary‐mediated trust situations, and conducted a cross‐cultural (Chinese vs. Australians) investment trust game to test the overlooked effects of an intermediary on investors' trust decisions, with respect to how much to invest in and expect from trustees. Compared to situations of direct trust, a nominal intermediary increased the number of Chinese investors expecting in‐group trustees to repay a profit on their investments (Hypothesis 1) and raised their level of investment in out‐group trustees (Hypothesis 2). These results applied to Chinese, but not Australians in support of the proposal that a nominal intermediary would serve as a cue to activate different cultural stereotypes of the functions and meanings of an intermediary with respect to trust and expectation of reciprocity. Coexisting with these culture‐specific effects of an intermediary, the minimal categorisation of people into in‐group and out‐group on trivial grounds leads to a highly significant in‐group favouritism in investment levels of both Chinese and Australians (Hypothesis 3).     

3～5岁幼儿基于面孔的信任判断的发展

本研究通过两个实验探讨了262名3~5岁幼儿基于面孔的信任判断能力及其年龄间差异。结果发现:(1)实验1中,当陌生面孔单张呈现时,3岁幼儿还不能正确地区分被成人评价为可信和不可信的面孔,而4、5岁幼儿已经能够基于面孔特征做出与成人基本一致的信任判断;(2)实验2中,当配对呈现可信vs.不可信两张面孔时,3~5岁幼儿都能够在日常交往情境中依据陌生交往者的面孔特征做出与成人基本一致的信任判断,并且随着年龄的增长,信任判断准确率逐步提高。这些结果表明幼儿从3岁开始已经能够基于面孔做出信任判断,随着年龄的增长,信任判断能力逐步发展。     

不可信面孔在视知觉加工中的注意偏向：来自眼动的证据

使用眼动追踪技术探究个体对同时呈现的可信和不可信面孔的视知觉加工差异, 以及注意偏向与可信和不可信面孔的记忆关系。结果发现：(1)被试再认不可信面孔成绩要好于可信面孔; (2)首注视点更多地偏向于不可信面孔, 并且落在不可信面孔上的总注视时间/注视点个数更长/多; (3)回归分析表明首注视点偏向能预测不可信面孔的再认优势。结果表明人们对不可信面孔产生更多的注意警觉与维持, 并且对不可信面孔的警觉能预测不可信面孔的记忆优势。     

Age-specific differences of dual n-back training

Age-related decline in executive functions can be decisive in performing everyday tasks autonomously. Working memory (WM) is closely related to executive functions, and training of WM has yielded evidence toward cognitive plasticity in older adults. The training effects often transfer to untrained tasks and functions. These effects have mostly been shown in processes such as WM and attention, whereas studies investigating transfer to executive functions have been scarce. We trained older adults aged 57–73 years in a WM training task that was reported to be effective in producing transfer in young adults. The training intervention consisted of a dual n-back task including independently processed auditory and visual n-back tasks. We investigated transfer to tasks engaging executive functions, and compared the effects in older adults to those reported in young adults. We found that both training groups improved in the training task. Although the training effect in older adults was smaller than the training effect in young adults, the older adults still showed a notable improvement so that after training they performed on the same level as young adults without training. The older adults also showed transfer to an untrained WM updating task, a result that was in accordance with the findings in young adults; other transfer effects in older adults were lacking. We conclude that although transfer effects were scarce, the present study provides encouraging evidence toward the possibilities to compensate for age-related decline in executive functions by a WM training intervention.     

Age-Related Deficits in Face Recognition are Related to Underlying Changes in Scanning Behavior

ABSTRACT

Previous studies demonstrating age-related impairments in recognition memory for faces are suggestive of underlying differences in face processing. To study these differences, we monitored eye movements while younger and older adults viewed younger and older faces. Compared to the younger group, older adults showed increased sampling of facial features, and more transitions. However, their scanning behavior was most similar to the younger group when looking at older faces. Moreover, while older adults exhibited worse recognition memory than younger adults overall, their memory was more accurate for older faces. These findings suggest that age-related differences in recognition memory for faces may be related to changes in scanning behavior, and that older adults may use social group status as a compensatory processing strategy.