Publications



Preprints & Under Review

Fabiola Diana, Misako Kawahara, Akihiro Tanaka, Shaul Shalvi, Ruud Hortensius*, Mariska E. Kret* (2025). TCross-Cultural Variation in Dishonesty Toward Humans and Artificial Agents Depends on Agent Pupil Size. PsyArXiv. July 4. https://doi.org/10.31234/osf.io/8nqsy_v1.
*joint senior authorship

     [preprint]

Aline Moore Lorusso, Ghislaine Lex van den Boogerd, Melissa Jansen, Ann L.M.P. Hogenhuis, Ruud Hortensius (2025). The impact of long-term interactions with a digital voice agent on trust and roles within a household. PsyArXiv. June 12. doi:10.31234/osf.io/7zgt8_v1.

     [preprint]

Ronja F. Held, Aline Moore Lorusso, Ann L.M.P. Hogenhuis, Esther S. Kluwer, Ruud Hortensius (2025). Understanding family dynamics through a neurocognitive lens. PsyArXiv. April 28. doi:10.31234/osf.io/zj7tu.

     [preprint]

Zsuzsa Komáromy, Aline Moore Lorusso, Reine C. van der Wal, Ruud Hortensius (2024). Revealing Attentional Biases in Conspiracy Theory Believers. PsyArXiv. March 1. doi:10.31234/osf.io/p2bgy.

     [preprint] [data and materials] [preregistration]

Selected Peer-Reviewed Publications

Fabiola Diana, Lola Cañamero, Ruud Hortensius, Mariska kret (2024). Merging sociality and robotics through an evolutionary perspective. Science Robotics

     [Full Text] [postprint]

Manuel Oliveira, Justus Brands, Judith Mashudi, Baptist Liefooghe, Ruud Hortensius (2024). Perceptions of artificial intelligence system’s aptitude to judge morality and competence amidst the rise of Chatbots. Cognitive Research: Principles and Implications

     [Full Text] [preprint] [data, materials & code]

Luca M. Leisten, Evelien Heyselaar, Tibor Bosse, Ruud Hortensius (2024). Children’s Reciprocity and Relationship Formation with a Robot Across Age. Technology, Mind and Behavior

     [Full Text] [preprint] [data, materials & code] [preregistration]

Ruud Hortensius, Eva Wiese (2023). A neurocognitive view on the depiction of social robots. Commentary on target article by Clark and Fischer. Behavioral and Brain Sciences

     [Full Text] [target article] [commentaries]

Baptist Liefooghe*, Manuel Oliveira*, Luca M. Leisten, Eline Hoogers, Henk Aarts, Ruud Hortensius (2023). Faces Merely Labelled as Artificial are Trusted Less. Collabra: Psychology

     [Full Text] [preprint] [data, materials & code] [preregistrations]

Fabiola Diana, Oscar E. Juárez-Mora, Wouter Boekel, Ruud Hortensius, Mariska E. Kret (2023). How video calls affect mimicry and trust during interactions. Philosophical Transactions of the Royal Society B

     [Full Text] [preprint] [data, materials & code]

Sofía Seinfeld, Ruud Hortensius, Jorge Arroyo-Palacios, Guillermo Iruretagoyena, Luis Zapata, Beatrice de Gelder, Mel Slater, Marie V Sanchez-Vives (2022). Immersing Offenders in a Virtual Domestic Violence Scene from a Child Perspective. Journal of Interpersonal Violence

     [Full Text]

Fabiola Diana, Misako Kawahara, Isabella Saccardi, Ruud Hortensius, Akihiro Tanaka, Mariska Kret (2022). Implicit and explicit attitudes towards artificial agents: a cross-cultural comparison. International Journal of Social Robotics

     [Full Text] [preprint] [data, materials & code]

Ruud Hortensius, Ann Hogenhuis (2022). Domain-specific and domain-general neural network engagement during human-robot interactions. European Journal of Neuroscience

     [Full Text] [preprint] [data] [code]

Ilja Croijmans, Laura van Erp, Annelie Bakker, Lara Cramer, Sophie Heezen, Dana Van Mourik, Sterre Weaver, Ruud Hortensius (2022). No effect of the smell of hexanal on trust in human-robot interaction. International Journal of Social Robotics

     [Full Text] [preprint] [data, materials & code] [preregistration]

Ruud Hortensius*, Bishakha Chaudhury*, Martin Hoffmann, Emily S. Cross (2022). Tracking human interactions with a commercially-available robot over multiple Days: A tutorial [version 1; peer review: 1 approved, 2 approved with reservations]. Open Research Europe: Artificial Intelligence and the Social Sciences and Humanities

     [Full Text] [preprint] [code] [shiny app]

Ruud Hortensius*, Michaela Kent*, Kohinoor Darda, Laura Jastrzab, Kami Koldewyn, Richard Ramsey, Emily S. Cross (2021). Exploring the relationship between anthropomorphism and Theory-of-Mind in brain and behaviour. Human Brain Mapping
*joined first authorship

     [Full Text] [preprint] [preregistration] [data] [NeuroVault] [code]

Dorina de Jong, Ruud Hortensius, Te-Yi Hsieh, Emily S. Cross (2021). Empathy and schadenfreude in human-robot teams. Journal of Cognition

     [Full Text] [preprint] [preregistration] [data & code]

Anna Henschel*, Ruud Hortensius*, Emily S. Cross (2020). Social cognition in the age of human–robot interaction. Trends in Neurosciences
*joined first authorship

     [Full Text]

Melike M. Fourie, Ruud Hortensius, Jean Decety (2020). Parsing the components of forgiveness: Psychological and neural mechanisms. Neuroscience & Biobehavioral Reviews

     [Full Text] [postprint]

Emily S Cross*, Ruud Hortensius*, Agnieszka Wykowska* (2019). From social brains to social robots: applying neurocognitive insights to human–robot interaction. Philosophical Transactions of the Royal Society B
*joined first authorship

     [Full Text] [special issue]

Emily S Cross, Katie A Riddoch, Jaydan Pratts, Simon Titone, Bishakha Chaudhury, Ruud Hortensius (2019). A neurocognitive investigation of the impact of socialising with a robot on empathy for pain. Philosophical Transactions of the Royal Society B

     [Full Text] [preprint] [preregistration] [data] [NeuroVault]

Ruud Hortensius*, Emily S. Cross* (2018). From automata to animate beings: The scope and limits of attributing socialness to artificial agents. Annals of the New York Academy of Sciences
*joined first authorship

     [Full Text] [preprint]

Ruud Hortensius, Felix Hekele, Emily S Cross (2018). The perception of emotion in artificial agents. IEEE TCDS

     [Full Text] [preprint]

Ruud Hortensius, Beatrice de Gelder (2018). From empathy to apathy: The bystander effect revisited. Current Directions in Psychological Science

     [Full Text] [preprint]

Ruud Hortensius, Solène Neyret, Mel Slater, Beatrice de Gelder (2018). The relation between bystanders’ behavioral reactivity to distress and later helping behavior during a violent conflict in virtual reality. PLOS ONE.

     [Full Text]

S. Seinfeld, J. Arroyo-Palacios, G. Iruretagoyena, R. Hortensius, L. E. Zapata, D. Borland, B. de Gelder, M. Slater, M. V. Sanchez-Vives (2018). Offenders become the victim in virtual reality: impact of changing perspective in domestic violence. Scientific Reports.

     [Full Text] [youtube video]

Marta Poyo Solanas, Minye Zhan, Maarten Vaessen, Ruud Hortensius, Tahnée Engelen, Beatrice de Gelder (2018). Looking at the face and seeing the whole body. Neural basis of combined face and body expressions. Social Cognitive and Affective Neuroscience.

     [Full Text]

Nicholas J. Kelley, Ruud Hortensius, Dennis J.L.G Schutter, Eddie Harmon-Jones (2017). The relationship of approach/avoidance motivation and asymmetric frontal cortical activity: A review of studies manipulating frontal asymmetry. International Journal of Psychophysiology

     [Full Text]

Ruud Hortensius, David Terburg, Barak Morgan, Dan J. Stein, Jack van Honk, Beatrice de Gelder (2017). The dynamic consequences of amygdala damage on threat processing in Urbach–Wiethe Disease. A commentary on Pishnamazi et al. (2016). Cortex

     [Full Text]

Ruud Hortensius, David Terburg, Barak Morgan, Dan J. Stein, Jack van Honk, Beatrice de Gelder (2017). The Basolateral Amygdalae and Frontotemporal Network Functions for Threat Perception. eNeuro

     [Full Text]

Ruud Hortensius, Beatrice de Gelder, Dennis J. L. G. Schutter (2016). When anger dominates the mind: Increased motor corticospinal excitability in the face of threat: Direction of threat and motor corticospinal excitability. Psychophysiology

     [Full Text]

Ruud Hortensius, David Terburg, Barak Morgan, Dan J. Stein, Jack van Honk, Beatrice de Gelder (2016). The role of the basolateral amygdala in the perception of faces in natural contexts. Philosophical Transactions of the Royal Society B: Biological Sciences

     [Full Text]

Ruud Hortensius, Dennis J. L. G. Schutter, Beatrice de Gelder (2016). Personal distress and the influence of bystanders on responding to an emergency. Cognitive, Affective, & Behavioral Neuroscience

     [Full Text]

Minye Zhan, Ruud Hortensius, Beatrice de Gelder (2015). The Body as a Tool for Anger Awareness—Differential Effects of Angry Facial and Bodily Expressions on Suppression from Awareness. PLOS One

     [Full Text] [data]

Jan Van den Stock, Ruud Hortensius, Charlotte Sinke, Rainer Goebel, Beatrice de Gelder (2015). Personality traits predict brain activation and connectivity when witnessing a violent conflict. Scientific Reports

     [Full Text]

Ruud Hortensius, Jack van Honk, Beatrice de Gelder, David Terburg (2014). Trait Dominance Promotes Reflexive Staring at Masked Angry Body Postures.PLoS One

     [Full Text] [data]

Ruud Hortensius, Beatrice de Gelder (2014). The neural basis of the bystander effect — The influence of group size on neural activity when witnessing an emergency. NeuroImage

     [Full Text]

Beatrice de Gelder, David Terburg, Barak Morgan, Ruud Hortensius, Dan J. Stein, Jack van Honk (2014). The role of human basolateral amygdala in ambiguous social threat perception. Cortex

     [Full Text]

Tom F. Price, Ruud Hortensius, Eddie Harmon-Jones (2013). Neural and behavioral associations of manipulated determination facial expressions. Biological Psychology

     [Full Text]

Nicholas J. Kelley, Ruud Hortensius, Eddie Harmon-Jones (2013). When Anger Leads to Rumination: Induction of Relative Right Frontal Cortical Activity With Transcranial Direct Current Stimulation Increases Anger-Related Rumination. Psychological Science

     [Full Text]

Beatrice de Gelder, Ruud Hortensius, Marco Tamietto (2012). Attention and awareness each influence amygdala activity for dynamic bodily expressions—a short review. Frontiers in Integrative Neuroscience

     [Full Text]

Ruud Hortensius, Dennis J. L. G. Schutter, Eddie Harmon-Jones (2012). When anger leads to aggression: induction of relative left frontal cortical activity with transcranial direct current stimulation increases the anger–aggression relationship. Social Cognitive and Affective Neuroscience

     [Full Text]

Dennis J.L.G. Schutter, Ruud Hortensius (2011). Brain oscillations and frequency-dependent modulation of cortical excitability. Brain Stimulation

     [Full Text]

Dennis J.L.G. Schutter & Ruud Hortensius (2010). Retinal origin of phosphenes to transcranial alternating current stimulation. Clinical Neurophysiology

     [Full Text] [editorial]


Conference Proceedings

Ronja F. Held, Aline Moore Lorusso, Ruud Hortensius (2024). Informing family-centered design through a neurocognitive approach. CHI 2024 Workshop on Methods for Family-Centered Design.

     [postprint]

Rosanne H. Timmerman+, Te-Yi Hsieh+, Anna Henschel*, Ruud Hortensius*, & Emily S. Cross* (2021). Individuals expend more effort to compete against robots than humans after observing competitive human-robot interactions. In Proceedings of the 2021 International Conference on Social Robotics
+joint first authorship *joint last authorship

     [preprint] [data]

Manuals

Anna Henschel, Michaela Kent, Luca M. Leisten, Hanna Seelemeyer, Rosanne H. Timmerman, Ruud Hortensius, & Emily S. Cross (202). A manual to digitising fNIRS probes with photogrammetry as described in Clausner et. al. (2017)

     [manual]


For a full list of publications, please see Google Scholar.