ruud_hortensius Researcher_In_Social_and_Affective_Neuroscience

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Frontal cortex and Aggression

When do people aggress and when do they ruminate after being insulted by another individual? In two experiments, we used transcranial direct current stimulation of the frontal cortex to influence these two separate reactions after interpersonal provocation. When selectively shifting the balance between the left and right frontal cortex we were able to increase rumination and the coupling between anger and aggression.

Publications

Hortensius R., Schutter D.J.L.G. & Harmon-Jones E. (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, 7: 342-347. [pdf]


Kelley N.J., Hortensius R. & Harmon-Jones E. (2013). When anger leads to rumination: Induction of relative right frontal cortical activity with transcranial direct current stimulation increases anger-related rumination, Psychological Science, 24: 475-481. [pdf]


For a recent review see:

Kelley N.J., Hortensius R., Schutter D.J.L.G. & Harmon-Jones, E. (2017). The relationship of approach/avoidance motivation and asymmetric frontal cortical activity: A review of studies manipulating frontal asymmetry. International Journal of Psychophysiology, 119: 19-30. [pdf]

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Last update: September 12 2018 (publications)


---News---

*A popularity contest in the robotic petting zoo will be part of the British Science Festival on September 14! Together with artist-in-residency Merel Bekking, we created an interactive public art performance. In this robotic petting zoo, a small group of vacuuming robots, all with unique characters, competed in a popularity contest. So much fun! Please check this page, the website or this BBC piece for more information.


*Our review paper on the attribution of socialness to artificial agents has been published in the Annals of the New York Academy of Sciences as part of the Year in Cognitive Neuroscience issue. In this review we discuss how the cognitive reconstruction within the human observer shapes human-robot interaction at the brain and behavioural level. Read the the article here.


*A review on the perception of emotion in artificial agents is in press in IEEE Transactions on Cognitive and Developmental Systems. In the review we integrate recent findings from social robotics, virtual reality, psychology, and neuroscience to examine how people recognize and respond to emotions displayed by robotic and virtual agents, and provide guiding principles for future development and research. Read the PsychArXiv pre-print here, the accepted version here or see the poster for the CERE conference here.


*Why do we fail to help during an emergency in the presence of other people? Together, with Beatrice de Gelder I propose a new theoretical perspective on bystander apathy that integrates emotional, motivational and dispositional aspects. Out now in Current Directions in Psychological Science.


---Coming soon---

*A preprint entitled: “Socialising with a robot and the flexibility of empathy”.