Trial reportProceedings. Biological sciences2017
Pupil-mimicry conditions trust in partners: moderation by oxytocin and group membership.
Trial report in Proceedings. Biological sciences, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
27 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Conventions and research challenges in considering trust with socially assistive robots for older adults.Frontiers in robotics and AI · 2025Pooled it
- Pupil-mimicry conditions trust in partners: moderation by oxytocin and group membership.Proceedings. Biological sciences · 2017Trial
- Fixations, blinks, and pupils differentially capture individual and interpersonal dynamics in role-asymmetric mutual gaze interaction.Scientific reports · 2026Article
- Pupil contagion variation with gaze, arousal, and autistic traits.Scientific reports · 2024Article
- The other-race effect of pupil contagion in infancy.Scientific reports · 2024Article
- Nasal oxytocin administration does not influence eye gaze or perceived relationship of male volunteers with physicians in a simulated online consultation: a randomized, placebo-controlled trial.Endocrine connections · 2023Article
- How video calls affect mimicry and trust during interactions.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023Article
- Oxytocin has 'tend-and-defend' functionality in group conflict across social vertebrates.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Review
- Culture-free perceptual invariant for trustworthiness.PloS one · 2022Article
- Developmental Effects of Oxytocin Neurons on Social Affiliation and Processing of Social Information.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021Article
- Political games of attack and defence.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Review
- Human and Human-Interfaced AI Interactions: Modulation of Human Male Autonomic Nervous System via Pupil Mimicry.Sensors (Basel, Switzerland) · 2021Article
- Measuring Collaboration Load With Pupillary Responses - Implications for the Design of Instructions in Task-Oriented HRI.Frontiers in psychology · 2021Article
- Physiological synchrony is associated with cooperative success in real-life interactions.Scientific reports · 2020Article
- Enhanced emotional and motor responses to live versus videotaped dynamic facial expressions.Scientific reports · 2020Article
- Analysis of the role of social support - cognitive psychology and emotional process approach.European journal of translational myology · 2020Article
- A sensorimotor control framework for understanding emotional communication and regulation.Neuroscience and biobehavioral reviews · 2020Review
- Intraspecific Motor and Emotional Alignment in Dogs and Wolves: The Basic Building Blocks of Dog-Human Affective Connectedness.Animals : an open access journal from MDPI · 2020Review
- Preprocessing pupil size data: Guidelines and code.Behavior research methods · 2019Article
- Infants' brain responses to pupillary changes in others are affected by race.Scientific reports · 2019Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Across species, oxytocin, an evolutionarily ancient neuropeptide, facilitates social communication by attuning individuals to conspecifics' social signals, fostering trust and bonding. The eyes have an important signalling function; and humans use their salient and communicative eyes to intentionally and unintentionally send social signals to others, by contracting the muscles around their eyes and pupils. In our earlier research, we observed that interaction partners with dilating pupils are trusted more than partners with constricting pupils. But over and beyond this effect, we found that the pupil sizes of partners synchronize and that when pupils synchronously dilate, trust is further boosted. Critically, this linkage between mimicry and trust was bound to interactions between ingroup members. The current study investigates whether these findings are modulated by oxytocin and sex of participant and partner. Using incentivized trust games with partners from ingroup and outgroup whose pupils dilated, remained static or constricted, this study replicates our earlier findings. It further reveals that (i) male participants withhold trust from partners with constricting pupils and extend trust to partners with dilating pupils, especially when given oxytocin rather than placebo; (ii) female participants trust partners with dilating pupils most, but this effect is blunted under oxytocin; (iii) under oxytocin rather than placebo, pupil dilation mimicry is weaker and pupil constriction mimicry stronger; and (iv) the link between pupil constriction mimicry and distrust observed under placebo disappears under oxytocin. We suggest that pupil-contingent trust is parochial and evolved in social species in and because of group life.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.