Serotoninergic effects on judgments and social learning of trustworthiness

Simonsen, Arndis; Scheel-Krüger, Jørgen; Jensen, Mads; Roepstorff, Andreas; Møller, Arne; Frith, C. D.; Campbell-Meiklejohn, Daniel

doi:10.1007/s00213-014-3444-2

Cited by 12 publications

(13 citation statements)

References 75 publications

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“…In line with previous research using a similar peer-pressure procedure 29 – 31 , 35 , 36 , we showed that, on average, participants tested online as well as those tested in the laboratory aligned their ratings on public information when the feedbacks it provided conflicted with the participants’ social preferences. This alignment was more pronounced for trials paired with a strong than a moderate disagreement.…”

Section: Discussionsupporting

confidence: 91%

“…To test these hypotheses, we adapted a well-validated face evaluation task 29 – 31 , 35 , 36 that we administered online to 300 participants recruited via a crowdsourcing platform (Amazon Mechanical Turk). Participants were asked to rate unfamiliar faces on the trustworthiness dimension on an 8-point Likert scale before and after watching to the most frequent ratings provided by a fictive group of peers, i.e., the public information (Fig.…”

Section: Introductionmentioning

confidence: 99%

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Human susceptibility to social influence and its neural correlates are related to perceived vulnerability to extrinsic morbidity risks

Jacquet

Wyart

Desantis

et al. 2018

Sci Rep

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Humans considerably vary in the degree to which they rely on their peers to make decisions. Why? Theoretical models predict that environmental risks shift the cost-benefit trade-off associated with the exploitation of others’ behaviours (public information), yet this idea has received little empirical support. Using computational analyses of behaviour and multivariate decoding of electroencephalographic activity, we test the hypothesis that perceived vulnerability to extrinsic morbidity risks impacts susceptibility to social influence, and investigate whether and how this covariation is reflected in the brain. Data collected from 261 participants tested online revealed that perceived vulnerability to extrinsic morbidity risks is positively associated with susceptibility to follow peers’ opinion in the context of a standard face evaluation task. We found similar results on 17 participants tested in the laboratory, and showed that the sensitivity of EEG signals to public information correlates with the participants’ degree of vulnerability. We further demonstrated that the combination of perceived vulnerability to extrinsic morbidity with decoding sensitivities better predicted social influence scores than each variable taken in isolation. These findings suggest that susceptibility to social influence is partly calibrated by perceived environmental risks, possibly via a tuning of neural mechanisms involved in the processing of public information.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Human susceptibility to social influence and its neural correlates are related to perceived vulnerability to extrinsic morbidity risks

Jacquet

Wyart

Desantis

et al. 2018

Sci Rep

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“…Citalopram tends to increase reactivity in emotion-potentiated startle paradigms (Browning et al 2007;Harmer et al 2003) and increase the labelling of facial cues as fearful (Harmer et al 2003). Recently, Simonsen et al (2014) showed that females receiving citalopram rated face stimuli less trustworthy compared to placebo. Acute citalopram administration may increase alertness towards emotionally salient environmental stimuli like neutral human faces.…”

Section: Discussionmentioning

confidence: 99%

A single dose of antidepressant alters eye-gaze patterns across face stimuli in healthy women

et al. 2014

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“…by a serotonergic agent e.g. 27,28 ); this 343 possibility should be explored in future studies. 344…”

Section: Discussion 295mentioning

confidence: 99%

Catecholamine Challenge Uncovers Distinct Mechanisms for Direct Versus Indirect, but Not Social Versus Non-Social, Learning

Cook

Swart

et al. 2018

Preprint

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1Evidence that social and individual learning are at least partially dissociable sustains the belief that 2 humans possess adaptive specialisations for social learning. However, in most extant paradigms, 3 social information comprises an indirect source that can be used to supplement one's own, direct, 4 experience. Thus, social and individual learning differ both in terms of social nature (social versus 5 non-social) and directness (indirect versus direct). To test whether the dissociation between social 6 and individual learning is best explained in terms of social nature or directness, we used a 7 catecholaminergic challenge known to modulate learning. Two groups completed a decision-making 8 task which required direct learning, from own experience, and indirect learning from an additional 9 source. The groups differed in terms of whether the indirect source was social or non-social. The 10 catecholamine transporter blocker, methylphenidate, affected direct learning by improving 11 adaptation to changes in the volatility of the environment but there was no effect of 12 methylphenidate on learning from the social or non-social indirect source. Thus, we report positive 13 evidence for a dissociable effect of methylphenidate on direct and indirect learning, but no evidence 14 for a distinction between social and non-social. These data fail to support the adaptive specialisation 15 view, instead providing evidence for distinct mechanisms for direct versus indirect learning. 16

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Serotoninergic effects on judgments and social learning of trustworthiness

Abstract: This is evidence that serotonin systems can mediate explicit assessment and social learning of the trustworthiness of others.

Cited by 12 publications

References 75 publications

Human susceptibility to social influence and its neural correlates are related to perceived vulnerability to extrinsic morbidity risks

Human susceptibility to social influence and its neural correlates are related to perceived vulnerability to extrinsic morbidity risks

A single dose of antidepressant alters eye-gaze patterns across face stimuli in healthy women

Catecholamine Challenge Uncovers Distinct Mechanisms for Direct Versus Indirect, but Not Social Versus Non-Social, Learning

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