Distinct neurocomputational mechanisms support informational and socially normative conformity

Mahmoodi A, Nili H, et al.

(2022) PLoS Biol 20(3): e3001565. 

https://doi.org/10.1371/journal.pbio.3001565

Abstract

A change of mind in response to social influence could be driven by informational conformity to increase accuracy, or by normative conformity to comply with social norms such as reciprocity. Disentangling the behavioural, cognitive, and neurobiological underpinnings of informational and normative conformity have proven elusive. Here, participants underwent fMRI while performing a perceptual task that involved both advice-taking and advice-giving to human and computer partners. The concurrent inclusion of 2 different social roles and 2 different social partners revealed distinct behavioural and neural markers for informational and normative conformity. Dorsal anterior cingulate cortex (dACC) BOLD response tracked informational conformity towards both human and computer but tracked normative conformity only when interacting with humans. A network of brain areas (dorsomedial prefrontal cortex (dmPFC) and temporoparietal junction (TPJ)) that tracked normative conformity increased their functional coupling with the dACC when interacting with humans. These findings enable differentiating the neural mechanisms by which different types of conformity shape social changes of mind.

Discussion

A key feature of adaptive behavioural control is our ability to change our mind as new evidence comes to light. Previous research has identified dACC as a neural substrate for changes of mind in both nonsocial situations, such as when receiving additional evidence pertaining to a previously made decision, and social situations, such as when weighing up one’s own decision against the recommendation of an advisor. However, unlike the nonsocial case, the role of dACC in social changes of mind can be driven by different, and often competing, factors that are specific to the social nature of the interaction. In particular, a social change of mind may be driven by a motivation to be correct, i.e., informational influence. Alternatively, a social change of mind may be driven by reasons unrelated to accuracy—such as social acceptance—a process called normative influence. To date, studies on the neural basis of social changes of mind have not disentangled these processes. It has therefore been unclear how the brain tracks and combines informational and normative factors.

Here, we leveraged a recently developed experimental framework that separates humans’ trial-by-trial conformity into informational and normative components to unpack the neural basis of social changes of mind. On each trial, participants first made a perceptual estimate and reported their confidence in it. In support of our task rationale, we found that, while participants’ changes of mind were affected by confidence (i.e., informational) in both human and computer settings, they were only affected by the need to reciprocate influence (i.e., normative) specifically in the human–human setting. It should be noted that participants’ perception of their partners’ accuracy is also an important factor in social change of mind (we tend to change our mind towards the more accurate participants). 

The research is here.

The prefrontal cortex and (uniquely) human cooperation: a comparative perspective

Zoh, Y., Chang, S.W.C. & Crockett, M.J.

Neuropsychopharmacol. (2021). 

https://doi.org/10.1038/s41386-021-01092-5

Abstract

Humans have an exceptional ability to cooperate relative to many other species. We review the neural mechanisms supporting human cooperation, focusing on the prefrontal cortex. One key feature of human social life is the prevalence of cooperative norms that guide social behavior and prescribe punishment for noncompliance. Taking a comparative approach, we consider shared and unique aspects of cooperative behaviors in humans relative to nonhuman primates, as well as divergences in brain structure that might support uniquely human aspects of cooperation. We highlight a medial prefrontal network common to nonhuman primates and humans supporting a foundational process in cooperative decision-making: valuing outcomes for oneself and others. This medial prefrontal network interacts with lateral prefrontal areas that are thought to represent cooperative norms and modulate value representations to guide behavior appropriate to the local social context. Finally, we propose that more recently evolved anterior regions of prefrontal cortex play a role in arbitrating between cooperative norms across social contexts, and suggest how future research might fruitfully examine the neural basis of norm arbitration.

Conclusion

The prefrontal cortex, in particular its more anterior regions, has expanded dramatically over the course of human evolution. In tandem, the scale and scope of human cooperation has dramatically outpaced its counterparts in nonhuman primate species, manifesting as complex systems of moral codes that guide normative behaviors even in the absence of punishment or repeated interactions. Here, we provided a selective review of the neural basis of human cooperation, taking a comparative approach to identify the brain systems and social behaviors that are thought to be unique to humans. Humans and nonhuman primates alike cooperate on the basis of kinship and reciprocity, but humans are unique in their abilities to represent shared goals and self-regulate to comply with and enforce cooperative norms on a broad scale. We highlight three prefrontal networks that contribute to cooperative behavior in humans: a medial prefrontal network, common to humans and nonhuman primates, that values outcomes for self and others; a lateral prefrontal network that guides cooperative goal pursuit by modulating value representations in the context of local norms; and an anterior prefrontal network that we propose serves uniquely human abilities to reflect on one’s own behavior, commit to shared social contracts, and arbitrate between cooperative norms across diverse social contexts. We suggest future avenues for investigating cooperative norm arbitration and how it is implemented in prefrontal networks.

On the Origins of Diversity in Social Behavior

Young, L.J. & Zhang, Q.

Japanese Journal of Animal Psychology

2021.

Abstract

Here we discuss the origins of diversity in social behavior by highlighting research using the socially monogamous prairie vole. Prairie voles display a rich social behavioral repertoire involving pair bonding and consoling behavior that are not observed in typical laboratory species. Oxytocin and vasopressin play critical roles in regulating pair bonding and consoling behavior. Oxytocin and vasopressin receptors show remarkable diversity in expression patterns both between and within species. Receptor expression patterns are associated with species differences in social behaviors. Variations in receptor genes have been linked to individual variation in expression patterns. We propose that "evolvability" in the oxytocin and vasopressin receptor genes allows for the repurposing of ancient maternal and territorial circuits to give rise to novel social behaviors such as pair bonding, consoling and selective aggression. We further propose that the evolvability of these receptor genes is due to their transcriptional sensitivity to genomic variation. This model provides a foundation for investigating the molecular mechanisms giving rise to the remarkable diversity in social behaviors found in vertebrates.

While this hypothesis remains to be tested, we believe this transcriptional flexibility is key to the origin of diversity in social behavior, and enables rapid social behavioral adaptation through natural selection, and

contributes to the remarkable diversity in social and reproductive behaviors in the animal kingdom.

A pdf is here.

The clockwork universe: is free will an illusion?

Oliver Burkeman

The Guardian

Originally posted 27 APR 21

Here is an excerpt:

And Saul Smilansky, a professor of philosophy at the University of Haifa in Israel, who believes the popular notion of free will is a mistake, told me that if a graduate student who was prone to depression sought to study the subject with him, he would try to dissuade them. “Look, I’m naturally a buoyant person,” he said. “I have the mentality of a village idiot: it’s easy to make me happy. Nevertheless, the free will problem is really depressing if you take it seriously. It hasn’t made me happy, and in retrospect, if I were at graduate school again, maybe a different topic would have been preferable.”

Smilansky is an advocate of what he calls “illusionism”, the idea that although free will as conventionally defined is unreal, it’s crucial people go on believing otherwise – from which it follows that an article like this one might be actively dangerous. (Twenty years ago, he said, he might have refused to speak to me, but these days free will scepticism was so widely discussed that “the horse has left the barn”.) “On the deepest level, if people really understood what’s going on – and I don’t think I’ve fully internalised the implications myself, even after all these years – it’s just too frightening and difficult,” Smilansky said. “For anyone who’s morally and emotionally deep, it’s really depressing and destructive. It would really threaten our sense of self, our sense of personal value. The truth is just too awful here.”

(cut)

By far the most unsettling implication of the case against free will, for most who encounter it, is what is seems to say about morality: that nobody, ever, truly deserves reward or punishment for what they do, because what they do is the result of blind deterministic forces (plus maybe a little quantum randomness).  "For the free will sceptic," writes Gregg Caruso in his new book Just Deserts, a collection of dialogues with fellow philosopher Daniel Dennett, "it is never fair to treat anyone as morally responsible." Were we to accept the full implications of that idea, the way we treat each other - and especially the way we treat criminals - might change beyond recognition.

The info is here.

Strategic Regulation of Empathy

Weisz, E., & Cikara, M. 

(2020, October 9).

https://doi.org/10.31234/osf.io/2kr46

Abstract

Empathy is an integral part of socio-emotional well-being, yet recent research has highlighted some of its downsides. Here we examine literature that establishes when, how much, and what aspects of empathy promote specific outcomes. After reviewing a theoretical framework which characterizes empathy as a suite of separable components, we examine evidence showing how dissociations of these components affect important socio-emotional outcomes and describe emerging evidence suggesting that these components can be independently and deliberately modulated. Finally, we advocate for a new approach to a multi-component view of empathy which accounts for the interrelations among components. This perspective advances scientific conceptualization of empathy and offers suggestions for tailoring empathy to help people realize their social, emotional, and occupational goals.

From Concluding Remarks

Early research on empathy regarded it as a monolithic construct. This characterization ultimately gave rise to a second wave of empathy-related research, which explicitly examined dissociations among empathy-related components.Subsequently, researchers noticed that individual components held different predictive power over key outcomes such as helping and occupational burnout. As described above, however, there are many instances in which these components track together in the real world, suggesting that although they can dissociate, they often operate in tandem.

Because empathy-related components rely on separable neural systems, the field of social neuroscience has already made significant progress toward the goal of characterizing instances when components do (or do not) track together.  For example, although affective and cognitive channels can independently contribute to judgments of others emotional states, they also operate in synchrony during more naturalistic socio-emotional tasks.  However, far more behavioral research is needed to characterize the co-occurrence of components in people’s everyday social interactions.  Because people differ in their tendencies to engage distinct components of empathy, a better understanding of the separability and interrelations of these components in real-world social scenarios can help tailor empathy-training programs to promote desirable outcomes.  Empathy-training efforts are on average effective (Hedges’ g = 0.51) but generally intervene on empathy as a whole (rather than specific components). 

Children punish third parties to satisfy both consequentialist and retributive motives

Marshall, J., Yudkin, D.A. & Crockett, M.J. 

Nat Hum Behav (2020). 

https://doi.org/10.1038/s41562-020-00975-9

Abstract

Adults punish moral transgressions to satisfy both retributive motives (such as wanting antisocial others to receive their ‘just deserts’) and consequentialist motives (such as teaching transgressors that their behaviour is inappropriate). Here, we investigated whether retributive and consequentialist motives for punishment are present in children approximately between the ages of five and seven. In two preregistered studies (N = 251), children were given the opportunity to punish a transgressor at a cost to themselves. Punishment either exclusively satisfied retributive motives by only inflicting harm on the transgressor, or additionally satisfied consequentialist motives by teaching the transgressor a lesson. We found that children punished when doing so satisfied only retributive motives, and punished considerably more when doing so also satisfied consequentialist motives. Together, these findings provide evidence for the presence of both retributive and consequentialist motives in young children.

Discussion

Overall, these two preregistered studies provide clear evidence for the presence of both consequentialist and retributive motives in young children, supporting the naive pluralism hypothesis. Our observations cohere with past research showing that children between the ages of five and seven are willing to engage in costly third-party punishment, and reveal the motives behind children’s punitive behaviour. Children reliably engaged in purely retributive punishment: they punished solely to make an antisocial other sad without any possibility of deterring future antisocial behaviour.  Children did not punish in the non-communicative condition out of a preference for locking iPads in boxes, shown by the fact that children punished less in the baseline control condition. Furthermore, non-communicative punishment could not be explained by erroneous beliefs that punishing would teach the transgressor a lesson.  This demonstrates that young children are not pure consequentialists. Rather, our data suggest that young children engaged in costly third-party punishment for purely retributive reasons.