costly signaling theory psychology


In the most common form, individuals give blood voluntary, while receiving no payment and having no control over who gets the donation. [21] For this reason, it has been proposed to honestly signal a wide range of traits including strength, skill, ability to buffer risk, leadership, and various beneficial cognitive traits, all of which can increase ones attractiveness to mates and cooperative partners. In addition to attempts at creating cooperative relationships, the costly signaling model of apology suggests that costly signals may also be used as a way to restore cooperation after a transgression. [86] They may also signal generosity when this involves a charitable component; however, this benefit is often considered secondary. Infant-directed song is thought to help with this due to its production being costlier to make when the parent is focused on other aspects of its environment, thereby increasing the honesty of the signal.

[101][102] Additionally, individuals have been found to report feeling better after crying when social support is present, with crying alone tending to not improve ones mood as would be predicted with a signaling hypothesis.[101]. [49] Additionally, such investment may still be costly with high likelihoods of survival if it puts the well-being of other siblings at risk. In instances where art needs to be defended, it may also signal ones formidability and social power.[44]. [28] This results in greater costs for those who do not have qualities which allow for greater chances of success or the ability to buffer failure relative to those who possess such qualities. [54], In addition to signaling qualities meant to increase ones attractiveness to potential mates or other cooperative partners, costly signals have also been suggested to result in honest displays of need. [12][20][21][22][23] The first signaling approaches to hunting emphasized that although hunting can provide an important source of calories and nutrients in small-scale societies, it is still practiced when it is less efficient than other means of food production and often involves the targeting of species that result in less meat for a given period. [93][95] Although much of ones illness symptoms are likely to come in the form of cues resulting from ones susceptibilities to a pathogen or byproducts of one's defenses against it, such approaches suggest they may also be upregulated in order to better signal need. [47][52][50], Although not necessarily a signal of the authors qualities, the costs involved with academic publishing have been suggested to result in honest signaling about the quality of the journal article being submitted under certain conditions.[53]. Costly signaling has also been suggested to explain blood donations. However, the costs involved with providing help and the threat of manipulation require reliable information before sufficient help is likely to be provided.

[28][29] Similarly, social dominance, confidence, and ambition may also help in competition among conspecifics, with social dominance, ambition, and wealth also potentially limiting the costs of failure. [85], Outside of its benefits, there has been much less research on whether conspicuous consumption meets the other requirements of being a signal, with it being possible that a mismatch exists between hypothesized adaptations for status signaling and modern environments which include marketing campaigns that might exploit such adaptations. [62] Assuming ones partner reciprocates along the way, this is expected to result in costs that are greater than what would be expected from with a large favor when one is likely to be in need, the time when developed friendships are most vulnerable to defection. [20][25] In addition to the costs of inefficiency reported in some hunts, hunting can be costly in terms of the time needed to develop ones skill, the risks involved, and the resources required for a successful hunt. [8], Costly signals have also been suggested to be important for demonstrating commitment to both initiate and maintain dyadic relationships, with gift giving in particular receiving substantial attention as an individual strategy [62][63][64][65] and as a custom. [47][48][49][50], Due to the fact that conflicts of interests exist between an offspring and both its parents and siblings, parents are expected to be sensitive to the quality of their offspring in determining how much investment to provide. [97][98] In particular, negative responses to crying have been found to be associated with post-partum depression, anxiety, and high levels of neuroticism. Often expected to involve low costs compared to the other hypothesized costly signals of need,[96][99] the potential costs of adult crying have been proposed to come from diverse areas. For this reason, many instances of depression are predicted to be analogous to a labor strike in that individuals who previously benefited from the depressed individual receive the message that they need to upregulate their support to once again gain from his or her cooperation. However, it has been argued that there is currently little evidence to distinguish it from a cue with a high degree of confidence, and relatively few signaling explanations involve the costs of crying and how this might lead to honest signaling. [62][64][65] Similarly, the fact that gifts are often personalized, sex specific, or involve goods that degrade quickly has been suggested to reduce the likelihood that the receiver can benefit from regifting the item with other partners, thereby further reducing the risk of defection.[66]. [22][26] Material benefits are also seen with good hunters having been shown to have increased reproductive success, more political power, and more support for ones kin in both times and illness and health. Adaptive Significance of Intensive Crying in Human Infants", "The signal functions of early infant crying", "Human Neonatal Cry Quality as an honest signal of fitness", "Is excessive infant crying an honest signal of vigor, one extreme of a continuum, or a strategy to manipulate parents? [54] For this reason, existing cooperators may view such signals as threats to their ongoing relationships, and put more weight on private signals to evaluate the cooperative intent of the signaler. Conspicuous consumption refers to instances when individuals purchase luxury goods which provide little to no utility over less costly versions,[86] thereby prioritizing self-presentation over economic efficiency. This is mainly seen in experiments which have manipulated the costs of items associated with males, with cars and clothing typical of higher classes having been found to be associated with increased probabilities of females entering into various types of romantic and sexual relationships and greater perceptions of attractiveness across multiple studies. [77][81] Similarly, participants in a study that had them imagine an accidental transgression in the past were more likely to report willingness to engage in a costly apology when an individual was more likely to be important to them. [78][80] However, few studies have examined the potential for attempt survivors to receive benefits. [90], Evidence consistent with conspicuous consumption being a costly signal of wealth and status comes from primarily from findings that females find males with more expensive items more desirable. [27] Sharing widely may signal one's intentions of future cooperation with ones group,[27] while more targeted examples constrained to only a subset of one's group can signal interest in forming cooperative relationships with individuals or coalitions within a group. [48] However, cryings connection to need has also been suggested to result in excessive crying being more likely to lead to reduced investment by making offspring appear in worse of condition. For this reason, potential fakers are not expected to gain net fitness benefits from such displays, thus increasing the likelihood the targets of ones signal will believe the individual to be ill and provide meaningful benefits that outweigh the costs of signaling. Art-making evolved mostly to attract mates. [73] Although the costs of the ritual itself are likely to be equal among believers and nonbelievers, skeptics have been suggested to perceive rituals as more costly due to them not believing in the power of the ritual to achieve what believers expect of it. [42][43][44] The materials involved may also require substantial resources to obtain and production itself may be physically demanding or risky. [66], Such approaches emphasize that the risk of defection from potential friends and romantic partners is particularly high at the start of relationships due to the amount of private information individuals have about their intentions to cooperate. [32][39][40] In humans, both low voice pitch and facial masculinity in males have been suggested to be honest indicators of male quality due to testosterones connection facial and vocal cord development and its hypothesized role in mediating tradeoffs. Despite the focus on sexual selection, conspicuous consumption may also be useful for problems outside of acquiring mates. [6][8], A signal differs from a cue in that signals evolved to influence the behavior or perceptions of others, while a cue is any piece of information an organism uses to alter its current state that was not created for this purpose. Although highly costly to those who are not in need, this does not require substantial costs on the part of an honest signaler. Hobart, Tasmania: Museum of Old and New Art. [54] Instead, individuals are also expected to pay attention to the likelihood that they will receive benefits before cooperating with another individual. For this reason, it may be an honest signal of overall quality due to the expectation that low-quality males will suffer more from opportunity costs per unit of time in courtship than high quality males, thereby favoring low quality males to drop out courtship sooner. [8][3], Primarily through the work of human behavioral ecologists, hunting among humans has received much attention as potentially serving as an honest indicator of various qualities due to its potential for differential costs. "Strategies for cooperation in biological markets, especially for humans", "Cross-cultural evidence of cognitive adaptations for social exchange among the Shiwiar of Ecuadorian Amazonia", "Sex differences in human mate preferences: Evolutionary hypotheses tested in 37 cultures", "Turtle hunting and tombstone opening: public generosity as costly signaling", "Showing off, handicap signaling, and the evolution of men's work", "Costly signaling and torch fishing on Ifaluk atoll", "Evolutionary Theories and Men's Preferences for Women's Waist-to-Hip Ratio: Which Hypotheses Remain? [10][52], Crying is proposed to help reduce ones infanticide risk by establishing the perception of vigor in others. [70][73], Evidence consistent with costly signaling explanations for religious ritual comes from both experimental and observational studies; however, few examinations exist on the topic. [85] Although wealth alone may be worth signaling, such signals are often suggested to display information about qualities relating to ones ability to acquire and defend resources in the future. [41][42][43][44] If defined as environmental modification lacking adaptive functions outside of sexual selection, art or art-like behavior has been observed in spiders, crabs, fish, and birds in addition to humans. Most signaling explanations of conspicuous consumption predict the targets of the signal will predominately be potential mates. [1], Although initially created to explain costly morphological traits as honest signals of an individual's underlying quality resulting from sexual selection,[2] the scope of costly signaling theory has been expanded to include signals of cooperative intent and need,[3][4] with the targets of such signals often going beyond potential mates. In On the origins of art [exhibition catalog] pp.

[21][25][26] As with other costly signals, this is due hunting being relatively more costly for those who lack the previously mentioned qualities or possess them to a lesser degree,with such individuals being more likely to produce less effective signals and become injured, both of which deter faking the signal. Outside of mating contexts in which there is little to gain through the provisioning or care of offspring, a signal of one's high quality may often not be enough to result in beneficial treatment from others, even when it is honest. However, gifts that do not increase the receivers fitness prospects may be favored, as those that result in material benefits for the receiver are likely to increase the risk of being manipulated by others. [44] Unlike the art of other species, however, the form of human art is generally not considered to be genetically encoded. Whatever form the costs take, the benefit to the parent is suggested to be quicker and more reliable satiation of infant demands which would then allow greater for investment in other areas. For example, crying has been shown to reduce ones reputation and potentially lead to avoidance in Western societies. As symptoms may be costly in terms of energy, opportunity costs, and reputation, it is expected to be costlier for potential fakers than those who are actually ill and experiencing symptoms already. Art has also received attention as a costly signal of beneficial qualities relevant to sexual selection. Like other forms of ritual, the costs involved come from the time, energy, material goods, or physical harm required for one to fit the rituals prescriptions,[69] with extreme forms of self-harm not being uncommon. [4][92] The costs of major depression primarily come through the reduction of interest and investment in ones normal pattern of behavior. Additionally, the commonality that religious rituals are often complex means that mistakes may be easy to spot throughout the ritual, further decreasing the likelihood of someone faking their commitment. Miller, G. F. (2016). As a hypothesized form of sexual signaling, males are expected to benefit from using art to signal to larger audiences than females, with evidence of this seen in both humans and non-human animals. [8][57] As in mating contexts, there may also be benefits to intimidating rivals, thereby decreasing the likelihood of direct competition for resources in the future. The costs of producing art are expected to increase with the quality of the piece and come in multiple forms. [84], Although parents experience fitness benefits from providing attention to infants and infants can gain fitness benefits from their parents spending time in other tasks, the optimal amount of resources devoted to this is expected to be an example of parent-offspring conflict, with infants benefiting from more attention than what is ideal for the parent. [78] Suicide attempts may also increase the spread of the information from the signal due to their noteworthy nature, something which may be particularly important when the transgression was made against a group or puts cooperative relationships with those outside the aggrieved at risk. [77] Since the costs of honest and dishonest verbal apologies are identical for the individual apologizing and the costs of continued victimization may be severe for the target of the apology, it is unlikely that verbal apologies alone will often be enough to convey contrition. [77] Instead, the signal only needs to be costly enough to outweigh the benefits a defector could gain in a one-time interaction, thereby creating a situation in which only those who are interested in future cooperation gain net benefits from the signal. For example, multiple vignette studies have found that costly apologies increase the perception of sincerity by the target of the signal across different countries and religions, with the costs of gift giving and self-punishment both being effective. [8], In humans, this has been proposed to take the form of individuals identifying potential targets of signals through the maintenance of welfare-tradeoff ratios and then employing costly signals to increase ones perceived value as a cooperator to attractive targets for cooperation in the future. [79] Despite this difference, the costs of suicide attempts are thought to function similarly to the symptoms of depression in that they are relatively costly for those not in severe need, thereby discouraging those in relatively minor need from making attempts. [65][67], Assuming other individuals in a population behave similarly, gift giving may also reduce the benefits of defection by making it costly to start new relationships,[62] something which may be particularly likely when gift giving is largely dictated by customs that are inherently costly for those without the intent of future cooperation. [11] In these instances, individuals with the quality can maximize their fitness by investing more in the signal relative to those who lack the quality or possess it to a lesser degree, thereby resulting in a signal that, while often not impossible to fake, tends to not be worth faking. [69] This difference in perception makes it less likely an individual will find belief worth faking, with costlier practices expected to provide greater indications of ones commitment. [20][22][27], Compared to the existence of the reputational benefits of hunting, its importance in explaining human hunting relative to explanations involving kin selection or reciprocity is more controversial. For this reason, risky behaviors may be often be honest signals, with individuals who lack the relevant traits being expected to avoid risk or suffer too much damage from failures to maintain risky behavior. For example, physical skill, good judgment, or bravery have all been argued to increase the chances of success in risky situations. Formulated as an explanation for placebo responses, the signaling theory of symptoms predicts that once the signaling function of upregulated symptoms is achieved and others provide support, symptoms will then be downregulated to a level appropriate for disease fighting signaling. [48][49] In these situations, older siblings are expected to be favored due to being closer to reproduction and the fact that they have already survived infancy which has higher mortality rates than later childhood. [10], Although there are substantial risks of being deceived, targets of a signal may still benefit from paying attention to this information as long as it is honest and relevant to fitness-related problems. [50] For this reason, it may serve as a reliable indicator of what an infant can afford to spend, thereby making it an honest signal of quality. Although the focus is often on signaling ones desire for a long-term relationship, it is likely not the only quality being signaled. [16] Outside of these areas, both sexes are often suggested to benefit similarly in signaling pathogen resistance or a lack of harmful mutations due to their hypothesized importance over human evolutionary history.[16][32]. [21][22], Evidence in favor of hunting being a costly signal of beneficial qualities has primarily come from its valuation by group members and by the benefits good hunters enjoy. Due to this conflict of interest, infants are expected to be sensitive to information relating to parental attention and come equipped with adaptations help elicit it, something which is proposed to result in selection pressures on parents to better signal their attententiveness.[84]. A Systematic Review", "Different Vocal Parameters Predict Perceptions of Dominance and Attractiveness", "The low male voice is a costly signal of phenotypic quality among Bolivian adolescents", "Parasites and sexual selection: Current status of the Hamilton and Zuk hypothesis", "Energetic cost of sexual attractiveness: ultrasonic advertisement in wax moths", "Aesthetic fitness: How sexual selection shaped artistic virtuosity as a fitness indicator and aesthetic preferences as mate choice criteria", "Duration of courtship effort as a costly signal", "Why Cry? [83], Infant-directed song has been suggested to be a costly signal of parental attentiveness, something which is thought to particularly important when infants are too young to walk or correctly avoid dangers in their environment. [20][28][30] This is primarily due to the finding that young males (who are the age and sex class with the highest reproductive variance) take more risks than any other group in both experiments and observational data. [8][54] This makes signaling one's willingness to provide benefits to others an important part of establishing cooperative relationships, something which is seen in both observational and experimental studies which have found that individuals tend to prefer those who are generous but have less to give as cooperative partners than those who have the ability to provide benefits but often do not.[54]. Food sharing is often reported to be a common occurrence in many small-scale societies, particularly with hunted game. [54][57][91] As with conspicuous consumption, such signals are also often expected to provide information about one's underlying quality in addition to wealth, particularly relating to one's ability to acquire and maintain possession of resources. [45] Although often accompanied by other signals, courtship duration on its own can create substantial opportunity costs as males cannot court other females at this time or invest in other fitness enhancing activities. [16][32][33][34][35][36] However, most approaches focus on how the information is relevant to the receiver rather than whether the information takes the form of signals or cues,[34][37] with the two possibilities often hard to distinguish between.[38]. [85] In these instances, the information signaled is thought to go beyond genetic quality and signal the potential for investment, which can be attractive to those seeking both long-term and short-term mating strategies. Consistent with signaling approaches to suicide, attempters often experience social conflict and adversity before the attempt, with instances when one cannot resolve their situation through their own actions being found to be particularly strong risk factor in an examination of the Human Relations Area Files. [29] However, traits like bravery and physical prowess may also be valued by cooperative partners due to their benefits in group-hunting and warfare, thereby increasing the potential audience for risk takers.

[21], Although not mutually exclusive with the show-off hypothesis, such approaches have been presented as explaining a wider range of hunting behaviors as the benefits that come with signaling ones qualities does not require that hunting benefits others, thereby better accounting for relatively wasteful displays. Due in part to its costs, prevalence, and apparent ability for anyone to develop it, major depression has been hypothesized to often serve as a credible signal need. [29], Physically attractive traits have also been hypothesized to be signals of mate quality, with facial characteristics, body type, voice characteristics, and body modification having all been suggested to provide information relevant to reproduction. [57] However, the fact that feasts tend to only happen at particular times of the year and involve competition between groups has been used to suggest that they may primarily be forms of conspicuous consumption meant to signal one's overall quality or status.[57][56]. [54][27] Sharing may also be an effective signal of generosity to those not receiving benefits if it reflects a stable personality trait that varies among individuals. [65] Instead, ones ability to acquire resources may also be demonstrated in larger gifts. [30], In general, the targets of risky signals are often thought to be potential mates. Various types of conspicuous illness symptoms have also been suggested to serve as honest signals of need. [96] However, tears may also function to hide information by increasingly the difficulty of others to determine the direction of ones gaze. [50] Tear production also impedes vision, reducing ones ability to respond to threats in ones environment. [73][72] Similarly, those engaging in communal religious rituals have been shown to have larger cooperative networks than those who did not participate. [3], Almost any organism can benefit from altering the perceptions, behavior, and physiology of others in its environment in ways that favor itself. ", "Relationship value promotes costly apology-making: testing the valuable relationships hypothesis from the perpetrator's perspective", "Costly apology and self-punishment after an unintentional transgression", "Parent-offspring conflict and the evolution of infant-directed song", "The origin of utility: Sexual selection and conspicuous consumption", "The Rival Wears Prada: Luxury Consumption as a Female Competition Strategy", "Blatant benevolence and conspicuous consumption: When romantic motives elicit strategic costly signals", "The Signaling Theory of Symptoms: An Evolutionary Explanation of the Placebo Effect", "Mental health is biological health: Why tackling "diseases of the mind" is an imperative for biological anthropology in the 21st century", "Social Reactions to Adult Crying: The Help-Soliciting Function of Tears", https://en.wikipedia.org/w/index.php?title=Costly_signaling_theory_in_evolutionary_psychology&oldid=1094459287, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 22 June 2022, at 19:04. For this reason, costs may be an adaptive part of an apology, increasing the effectiveness of the apology so that the apologizer is more likely to remain in the cooperative venture. [10][47][48][49] As parental investment in one offspring cannot go to another, the potential exists for investment in a new child to reduce an individuals fitness. [47][50] Additionally, the acoustic frequency of one's cries may also carry information about one's fitness prospects based on studies which have found correlations between cry pitch and various diseases. [56][55] However, neither may be mutually exclusive with signaling strategies due to the importance of reputation to cooperative relationships and the fact that sharing food that may not be worth defending still requires the effort to collect in the first place.[55]. [86] However, its commonality across cultures and class boundaries have been used to argue that humans may be well suited to balancing the costs and benefits of the signal. [53] When the submission process involves little cost and no differential benefits, the optimal strategy for authors is likely to involve signaling that ones work is higher quality than it is and submitting all publications to high-impact journals before submitting them to lower-impact journals, even when the probability of acceptance is low. [60] Based on game theoretic models, this can evolve in the absence of signaling through fixed strategies. [2] Such faking would likely be favored through natural selection due to the ubiquity of conflicts of interests among living things creating situations in which the negative impacts on others are either not relevant or still worth the benefits to the signaler. [20][22][24] In response to this and findings that food is typically shared widely in small-scale societies, the show-off hypothesis suggests that men may hunt difficult prey in part due to reputational benefits that increase the likelihood that others will want good hunters in their group because of the benefits they provide. [28][29][30][31] As risk increases, so do the costs that come with failure. [42][43][44] For this reason, it may reliably signal information about ones health, access to resources, or the relative absence of harmful mutations which might negatively impact ones ability or overall condition.

[74] Other studies have attempted to more directly link the costs of signals to the effectiveness of cooperation, with one finding the number of costly requirements of a commune to be associated with longer commune lifespan[75] and another finding that participation in and observation of a costly ritual was associated with larger donations compared to those involved with a less costly ritual.[76]. [28][29], Many beneficial qualities have been suggested to underlie risk-taking behavior. [5][6][7] Particularly true in social species, the result is often investment in signals to enhance ones perceived attractiveness, formidability, or cooperative value to members of their own species. [66], Costly signaling approaches to ritual often emphasize the ability of ritual behavior to honestly signal commitment to ones group due to the costs involved resulting in signals that are difficult to fake. [78][79][80] According to the costly apology model of suicide, such substantial costs may be required to honestly signal contrition when the potential payoff to future defection is large enough to still allow for deceivers to gain net benefits through less costly signals, something which may occur when highly valuable cooperative relationships are in threat of being ended. [3], One potential means for signaling wealth is conspicuous consumption.
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