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Ghanem K, Saltoun K, Suvrathan A, Draganski B, Bzdok D. Longitudinal microstructural changes in 18 amygdala nuclei resonate with cortical circuits and phenomics. Commun Biol 2024; 7:477. [PMID: 38637627 PMCID: PMC11026520 DOI: 10.1038/s42003-024-06187-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 04/11/2024] [Indexed: 04/20/2024] Open
Abstract
The amygdala nuclei modulate distributed neural circuits that most likely evolved to respond to environmental threats and opportunities. So far, the specific role of unique amygdala nuclei in the context processing of salient environmental cues lacks adequate characterization across neural systems and over time. Here, we present amygdala nuclei morphometry and behavioral findings from longitudinal population data (>1400 subjects, age range 40-69 years, sampled 2-3 years apart): the UK Biobank offers exceptionally rich phenotyping along with brain morphology scans. This allows us to quantify how 18 microanatomical amygdala subregions undergo plastic changes in tandem with coupled neural systems and delineating their associated phenome-wide profiles. In the context of population change, the basal, lateral, accessory basal, and paralaminar nuclei change in lockstep with the prefrontal cortex, a region that subserves planning and decision-making. The central, medial and cortical nuclei are structurally coupled with the insular and anterior-cingulate nodes of the salience network, in addition to the MT/V5, basal ganglia, and putamen, areas proposed to represent internal bodily states and mediate attention to environmental cues. The central nucleus and anterior amygdaloid area are longitudinally tied with the inferior parietal lobule, known for a role in bodily awareness and social attention. These population-level amygdala-brain plasticity regimes in turn are linked with unique collections of phenotypes, ranging from social status and employment to sleep habits and risk taking. The obtained structural plasticity findings motivate hypotheses about the specific functions of distinct amygdala nuclei in humans.
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Affiliation(s)
- Karam Ghanem
- The Neuro - Montreal Neurological Institute (MNI), McConnell Brain Imaging Centre, Department of Biomedical Engineering, Faculty of Medicine, School of Computer Science, McGill University, Montreal, Canada.
- Mila - Quebec Artificial Intelligence Institute, Montreal, QC, Canada.
| | - Karin Saltoun
- The Neuro - Montreal Neurological Institute (MNI), McConnell Brain Imaging Centre, Department of Biomedical Engineering, Faculty of Medicine, School of Computer Science, McGill University, Montreal, Canada
- Mila - Quebec Artificial Intelligence Institute, Montreal, QC, Canada
| | - Aparna Suvrathan
- Department of Neurology and Neurosurgery, Department of Pediatrics, McGill University, Montreal, QC, Canada
- Brain Repair and Integrative Neuroscience (BRaIN) Research Program, Montreal, QC, Canada
- Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Bogdan Draganski
- LREN, Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland
- Neurology Department, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Danilo Bzdok
- The Neuro - Montreal Neurological Institute (MNI), McConnell Brain Imaging Centre, Department of Biomedical Engineering, Faculty of Medicine, School of Computer Science, McGill University, Montreal, Canada.
- Mila - Quebec Artificial Intelligence Institute, Montreal, QC, Canada.
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2
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Malatesta G, D'Anselmo A, Prete G, Lucafò C, Faieta L, Tommasi L. The Predictive Role of the Posterior Cerebellum in the Processing of Dynamic Emotions. CEREBELLUM (LONDON, ENGLAND) 2024; 23:545-553. [PMID: 37285048 PMCID: PMC10951036 DOI: 10.1007/s12311-023-01574-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/29/2023] [Indexed: 06/08/2023]
Abstract
Recent studies have bolstered the important role of the cerebellum in high-level socio-affective functions. In particular, neuroscientific evidence shows that the posterior cerebellum is involved in social cognition and emotion processing, presumably through its involvement in temporal processing and in predicting the outcomes of social sequences. We used cerebellar transcranial random noise stimulation (ctRNS) targeting the posterior cerebellum to affect the performance of 32 healthy participants during an emotion discrimination task, including both static and dynamic facial expressions (i.e., transitioning from a static neutral image to a happy/sad emotion). ctRNS, compared to the sham condition, significantly reduced the participants' accuracy to discriminate static sad facial expressions, but it increased participants' accuracy to discriminate dynamic sad facial expressions. No effects emerged with happy faces. These findings may suggest the existence of two different circuits in the posterior cerebellum for the processing of negative emotional stimuli: a first-time-independent mechanism which can be selectively disrupted by ctRNS, and a second time-dependent mechanism of predictive "sequence detection" which can be selectively enhanced by ctRNS. This latter mechanism might be included among the cerebellar operational models constantly engaged in the rapid adjustment of social predictions based on dynamic behavioral information inherent to others' actions. We speculate that it might be one of the basic principles underlying the understanding of other individuals' social and emotional behaviors during interactions.
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Affiliation(s)
- Gianluca Malatesta
- Department of Psychological, Health and Territorial Sciences - University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy.
| | - Anita D'Anselmo
- Department of Psychological, Health and Territorial Sciences - University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Giulia Prete
- Department of Psychological, Health and Territorial Sciences - University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Chiara Lucafò
- Department of Psychological, Health and Territorial Sciences - University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Letizia Faieta
- Department of Psychological, Health and Territorial Sciences - University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Luca Tommasi
- Department of Psychological, Health and Territorial Sciences - University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
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3
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Seidenbecher S, Schöne M, Kaufmann J, Schiltz K, Bogerts B, Frodl T. Neuroanatomical correlates of aggressiveness: a case-control voxel- and surface-based morphometric study. Brain Struct Funct 2024; 229:31-46. [PMID: 37819409 PMCID: PMC10827843 DOI: 10.1007/s00429-023-02715-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 09/20/2023] [Indexed: 10/13/2023]
Abstract
Aggression occurs across the population ranging on a symptom continuum. Most previous studies have used magnetic resonance imaging in clinical/forensic samples, which is associated with several confounding factors. The present study examined structural brain characteristics in two healthy samples differing only in their propensity for aggressive behavior. Voxel- and surface-based morphometry (SBM) analyses were performed on 29 male martial artists and 32 age-matched male controls. Martial artists had significantly increased mean gray matter volume in two frontal (left superior frontal gyrus and bilateral anterior cingulate cortex) and one parietal (bilateral posterior cingulate gyrus and precuneus) brain clusters compared to controls (whole brain: p < 0.001, cluster level: family-wise error (FWE)-corrected). SBM analyses revealed a trend for greater gyrification indices in martial artists compared to controls in the left lateral orbital frontal cortex and the left pars orbitalis (whole brain: p < 0.001, cluster level: FWE-corrected). The results indicate brain structural differences between martial artists and controls in frontal and parietal brain areas critical for emotion processing/inhibition of emotions as well as empathic processes. The present study highlights the importance of studying healthy subjects with a propensity for aggressive behavior in future structural MRI research on aggression.
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Affiliation(s)
- Stephanie Seidenbecher
- Department of Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg, Leipziger Str. 44, 39120, Magdeburg, Germany.
| | - Maria Schöne
- Department of Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg, Leipziger Str. 44, 39120, Magdeburg, Germany
| | - Jörn Kaufmann
- Department of Neurology, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Kolja Schiltz
- Department of Forensic Psychiatry, Psychiatric Hospital of the Ludwig-Maximilians-University, Munich, Germany
- Center for Behavioral Brain Sciences (CBBS), Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Bernhard Bogerts
- Department of Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg, Leipziger Str. 44, 39120, Magdeburg, Germany
- Center for Behavioral Brain Sciences (CBBS), Otto von Guericke University Magdeburg, Magdeburg, Germany
- Salus-Institute, Salus gGmbH, Magdeburg, Germany
| | - Thomas Frodl
- Department of Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg, Leipziger Str. 44, 39120, Magdeburg, Germany
- Center for Behavioral Brain Sciences (CBBS), Otto von Guericke University Magdeburg, Magdeburg, Germany
- Department of Psychiatry and Psychotherapy, RWTH Aachen University, Aachen, Germany
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Tonnaer F, van Zutphen L, Raine A, Cima M. Amygdala connectivity and aggression. HANDBOOK OF CLINICAL NEUROLOGY 2023; 197:87-106. [PMID: 37633721 DOI: 10.1016/b978-0-12-821375-9.00002-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/28/2023]
Abstract
Neurobiological models propose that reactive aggression is predicated on impairments in amygdala-prefrontal connectivity that subserves moral decision-making and emotion regulation. The amygdala is a key component within this neural network that modulates reactive aggression. We provide a review of amygdala dysfunctional brain networks leading to reactive aggressive behavior. We elaborate on key concepts, focusing on moral decision-making and emotion regulation in a developmental context, and brain network connectivity factors relating to amygdala (dys)function-factors which we suggest predispose to reactive aggression. We additionally discuss insights into the latest treatment interventions, providing the utilization of the scientific findings for practice.
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Affiliation(s)
- Franca Tonnaer
- Department of Research, Ventio Crime Prevention Science Institute, Rijckholt, The Netherlands
| | - Linda van Zutphen
- Department of Conditions for LifeLong Learning, Educational Sciences, Open University, Heerlen, The Netherlands
| | - Adrian Raine
- Department of Criminology, Richard Perry University, Berkeley, CA, United States; Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, United States
| | - Maaike Cima
- Department of Research, Ventio Crime Prevention Science Institute, Rijckholt, The Netherlands; Department of Developmental Psychopathology, Behavioural Science Institute, Radboud University, Nijmegen, The Netherlands; Department of Research, VIGO Groep, Nijmegen, The Netherlands.
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5
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Zheltyakova M, Korotkov A, Masharipov R, Myznikov A, Didur M, Cherednichenko D, Wagels L, Habel U, Kireev M, Votinov M. Social Interaction With an Anonymous Opponent Requires Increased Involvement of the Theory of Mind Neural System: An fMRI Study. Front Behav Neurosci 2022; 16:807599. [PMID: 35645745 PMCID: PMC9136332 DOI: 10.3389/fnbeh.2022.807599] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 03/07/2022] [Indexed: 11/25/2022] Open
Abstract
An anonymous interaction might facilitate provoking behavior and modify the engagement of theory of mind (TOM) brain mechanisms. However, the effect of anonymity when processing unfair behavior of an opponent remains largely unknown. The current functional magnetic resonance imaging (fMRI) study applied the Taylor aggression paradigm, introducing an anonymous opponent to this task. Thirty-nine healthy right-handed subjects were included in the statistical analysis (13 males/26 females, mean age 24.5 ± 3.6 years). A player winning the reaction-time game could subtract money from the opponent during the task. Participants behaved similarly to both introduced and anonymous opponents. However, when an anonymous opponent (when compared to the introduced opponent) subtracted money, the right inferior frontal gyrus (IFG) demonstrated an increased BOLD signal and increased functional connectivity with the left IFG. Further, increased functional connectivity between the right IFG, the right temporal parietal junction and precuneus was observed during the perception of high provocation (subtracting a large amount of money) from the anonymous compared to the introduced opponent. We speculate that the neural changes may underlie different inferences about the opponents’ mental states. The idea that this reorganization of the TOM network reflects the attempt to understand the opponent by “completing” socially relevant details requires further investigation.
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Affiliation(s)
- Maya Zheltyakova
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Science, Saint Petersburg, Russia
| | - Alexander Korotkov
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Science, Saint Petersburg, Russia
- Alexander Korotkov,
| | - Ruslan Masharipov
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Science, Saint Petersburg, Russia
| | - Artem Myznikov
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Science, Saint Petersburg, Russia
| | - Michael Didur
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Science, Saint Petersburg, Russia
| | - Denis Cherednichenko
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Science, Saint Petersburg, Russia
| | - Lisa Wagels
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Ute Habel
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Maxim Kireev
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Science, Saint Petersburg, Russia
- Institute for Cognitive Studies, Saint Petersburg State University, Saint Petersburg, Russia
| | - Mikhail Votinov
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Science, Saint Petersburg, Russia
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty, RWTH Aachen University, Aachen, Germany
- *Correspondence: Mikhail Votinov,
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6
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Rosén J, Kastrati G, Kuja-Halkola R, Larsson H, Åhs F. A neuroimaging study of interpersonal distance in identical and fraternal twins. Hum Brain Mapp 2022; 43:3508-3523. [PMID: 35417056 PMCID: PMC9248319 DOI: 10.1002/hbm.25864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 11/25/2022] Open
Abstract
Keeping appropriate interpersonal distance is an evolutionary conserved behavior that can be adapted based on learning. Detailed knowledge on how interpersonal space is represented in the brain and whether such representation is genetically influenced is lacking. We measured brain function using functional magnetic resonance imaging in 294 twins (71 monozygotic, 76 dizygotic pairs) performing a distance task where neural responses to human figures were compared to cylindrical blocks. Proximal viewing distance of human figures was compared to cylinders facilitated responses in the occipital face area (OFA) and the superficial part of the amygdala, which is consistent with these areas playing a role in monitoring interpersonal distance. Using the classic twin method, we observed a genetic influence on interpersonal distance related activation in the OFA, but not in the amygdala. Results suggest that genetic factors may influence interpersonal distance monitoring via the OFA whereas the amygdala may play a role in experience‐dependent adjustments of interpersonal distance.
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Affiliation(s)
- Jörgen Rosén
- Department of Psychology and Social Work, Mid Sweden University, Östersund, Sweden
| | - Granit Kastrati
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Ralf Kuja-Halkola
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Henrik Larsson
- Department of Medical Sciences, Örebro University, Örebro, Sweden
| | - Fredrik Åhs
- Department of Psychology and Social Work, Mid Sweden University, Östersund, Sweden
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7
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Göttlich M, Buades-Rotger M, Wiechert J, Beyer F, Krämer UM. Structural covariance of amygdala subregions is associated with trait aggression and endogenous testosterone in healthy individuals. Neuropsychologia 2021; 165:108113. [PMID: 34896406 DOI: 10.1016/j.neuropsychologia.2021.108113] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 12/06/2021] [Indexed: 12/30/2022]
Abstract
Many studies point toward volume reductions in the amygdala as a potential neurostructural marker for trait aggression. However, most of these findings stem from clinical samples, rendering unclear whether the findings generalize to non-clinical populations. Furthermore, the notion of neural networks suggests that interregional correlations in gray matter volume (i.e., structural covariance) can explain individual differences in aggressive behavior beyond local univariate associations. Here, we tested whether structural covariance between amygdala subregions and the rest of the brain is associated with self-reported aggression in a large sample of healthy young students (n = 263; 49% women). Salivary testosterone concentrations were measured for a subset of n = 40 male and n = 36 female subjects, allowing us to investigate the influence of endogenous testosterone on structural covariance. Aggressive individuals showed enhanced covariance between left superficial amygdala (SFA) and left dorsal anterior insula (dAI), but lower covariance between right laterobasal amygdala (LBA) and right dorsolateral prefrontal cortex (dlPFC). These structural patterns overlap with functional networks involved in the genesis and regulation of aggressive behavior, respectively. With increasing endogenous testosterone, we observed stronger structural covariance between right centromedial amygdala (CMA) and right medial prefrontal cortex in men and between left CMA and bilateral orbitofrontal cortex in women. These results speak for structural covariance of amygdala subregions as a robust correlate of trait aggression in healthy individuals. Moreover, regions that showed structural covariance with the amygdala modulated by either testosterone or aggression did not overlap, suggesting a complex role of testosterone in human social behavior beyond facilitating aggressiveness.
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Affiliation(s)
- Martin Göttlich
- Department of Neurology, University Clinic of Lübeck, Lübeck, Germany; Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
| | - Macià Buades-Rotger
- Department of Neurology, University Clinic of Lübeck, Lübeck, Germany; Department of Psychology, University of Lübeck, Lübeck, Germany; Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands
| | - Juliana Wiechert
- Department of Neurology, University Clinic of Lübeck, Lübeck, Germany
| | - Frederike Beyer
- Psychology Department, Queen Mary University, London, United Kingdom
| | - Ulrike M Krämer
- Department of Neurology, University Clinic of Lübeck, Lübeck, Germany; Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany; Department of Psychology, University of Lübeck, Lübeck, Germany.
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8
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Boccadoro S, Wagels L, Puiu AA, Votinov M, Weidler C, Veselinovic T, Demko Z, Raine A, Neuner I. A meta-analysis on shared and distinct neural correlates of the decision-making underlying altruistic and retaliatory punishment. Hum Brain Mapp 2021; 42:5547-5562. [PMID: 34415078 PMCID: PMC8559514 DOI: 10.1002/hbm.25635] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 08/07/2021] [Accepted: 08/09/2021] [Indexed: 12/14/2022] Open
Abstract
Individuals who violate social norms will most likely face social punishment sanctions. Those sanctions are based on different motivation aspects, depending on the context. Altruistic punishment occurs if punishment aims to re‐establish the social norms even at cost for the punisher. Retaliatory punishment is driven by anger or spite and aims to harm the other. While neuroimaging research highlighted the neural networks supporting decision‐making in both types of punishment in isolation, it remains unclear whether they rely on the same or distinct neural systems. We ran an activation likelihood estimation meta‐analysis on functional magnetic resonance imaging data on 24 altruistic and 19 retaliatory punishment studies to investigate the neural correlates of decision‐making underlying social punishment and whether altruistic and retaliatory punishments share similar brain networks. Social punishment reliably activated the bilateral insula, inferior frontal gyrus, midcingulate cortex (MCC), and superior and medial frontal gyri. This network largely overlapped with activation clusters found for altruistic punishment. However, retaliatory punishment revealed only one cluster in a posterior part of the MCC, which was not recruited in altruistic punishment. Our results support previous models on social punishment and highlight differential involvement of the MCC in altruistic and retaliatory punishments, reflecting the underlying different motivations.
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Affiliation(s)
- Sara Boccadoro
- Departments of Psychiatry, Psychotherapy, and Psychosomatics, School of Medicine, RWTH Aachen University, Aachen, Germany
| | - Lisa Wagels
- Departments of Psychiatry, Psychotherapy, and Psychosomatics, School of Medicine, RWTH Aachen University, Aachen, Germany.,JARA-Institute Brain Structure Function Relationship (INM 10), Research Center Jülich, Jülich, Germany
| | - Andrei A Puiu
- Departments of Psychiatry, Psychotherapy, and Psychosomatics, School of Medicine, RWTH Aachen University, Aachen, Germany
| | - Mikhail Votinov
- Departments of Psychiatry, Psychotherapy, and Psychosomatics, School of Medicine, RWTH Aachen University, Aachen, Germany.,JARA-Institute Brain Structure Function Relationship (INM 10), Research Center Jülich, Jülich, Germany
| | - Carmen Weidler
- Departments of Psychiatry, Psychotherapy, and Psychosomatics, School of Medicine, RWTH Aachen University, Aachen, Germany
| | - Tanja Veselinovic
- Departments of Psychiatry, Psychotherapy, and Psychosomatics, School of Medicine, RWTH Aachen University, Aachen, Germany
| | - Zachary Demko
- Department of Psychology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Adrian Raine
- Departments of Criminology, Psychiatry, and Psychology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Irene Neuner
- Departments of Psychiatry, Psychotherapy, and Psychosomatics, School of Medicine, RWTH Aachen University, Aachen, Germany.,Institute of Neuroscience and Medicine (INM-4), Forschungszentrum Jülich, Jülich, Germany.,JARA-BRAIN - Translational Medicine, Aachen, Germany
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9
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Wiechert J, Janzen A, Achtziger A, Fehr T. Neural Correlates of Decisions in Quasi-Realistic, Affective Social Interactions in Individuals With Violence-Related Socialization. Front Behav Neurosci 2021; 15:713311. [PMID: 34744650 PMCID: PMC8566670 DOI: 10.3389/fnbeh.2021.713311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 09/16/2021] [Indexed: 11/30/2022] Open
Abstract
Appropriate social behavior in aggressive-provocative interactions is a prerequisite for a peaceful life. In previous research, the dysfunctions of the control of aggression were suggested to be modulated by enhanced bottom-up (sub-cortically driven) and reduced top-down (iso-cortical frontal) processing capability. In the present study, two groups of individuals with enhanced (EG) and normal (NG) experiences of violent acts during their socialization made binary behavioral decisions in quasi-realistic social interactions. These interactions were presented in short video clips taken from a first-person perspective. The video clips showed social interaction scenarios oriented on realistic everyday life situations. The behavioral data supported the distinct affective qualities of three categories of social interactions. These categories were labeled as aggressive–provocative, social–positive, and neutral–social interactions. Functional neuroimaging data showed extended activation patterns and higher signal intensity for the NG compared to the EG in the lateral inferior frontal brain regions for the aggressive provocative interactions. Furthermore, the peri-aqueductal gray (PAG) produced enhanced activations for the affective interaction scenarios (i.e., aggressive-provocative and social-positive) in both groups and as a trend with the medium effect size for the neutral interactions in the EG. As the individuals in the EG did not show open aggression during the functional MRIA (fMRI) investigation, we concluded that they applied individual self-control strategies to regulate their aggressive impulses immediately. These strategies appeared to be top-down regulated through the dorsal frontal brain areas. The predominant recruitment of the heteromodal cortices during the neural processing of complex social interactions pointed to the important role of the learning history of individuals and their socialization with differing levels of violent experiences as crucial modulators in convicts. Our data suggest that building or strengthening the association between prototypical social contexts (e.g., aggressive-provocative interactions) and appropriate behaviors as a response to it provides a promising approach to successfully re-socialize people with a delinquent history.
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Affiliation(s)
| | - Axel Janzen
- Correctional and Rehabilitation Center (Justizvollzugsanstalt, JVA) Bremen, Bremen, Germany
| | - Anja Achtziger
- Department of Political and Social Sciences, Zeppelin University, Friedrichshafen, Germany
| | - Thorsten Fehr
- Center for Advanced Imaging Bremen/Magdeburg, Bremen, Germany.,Department of Neuropsychology, Center for Cognitive Sciences, University of Bremen, Bremen, Germany
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10
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Kähkönen JE, Krämer UM, Buades-Rotger M, Beyer F. Regulating interpersonal stress: the link between heart-rate variability, physical exercise and social perspective taking under stress. Stress 2021; 24:753-762. [PMID: 33818287 DOI: 10.1080/10253890.2021.1907339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Social interactions can be stressful, especially if they involve provocation or ambiguity. At the same time, such interactions necessitate social cognition. The question thus arises how stress affects social cognition and how personality attributes modulate this effect. The aim of the current study was to investigate the link between emotional reactivity, physical exercise, and social cognition under stress. As a measure of social cognition, we used spontaneous perspective taking, i.e., the degree to which participants represented the mental state of another agent. Studying young female participants, we investigated how physiological regulation, measured through resting heart-rate variability, is related to spontaneous social perspective taking under stress, and to predicted anger in an ambiguous social scenario. When controlling for resting heart rate, vagally mediated heart-rate variability was negatively correlated with the effect of stress on perspective taking, indicating that good physiological regulation supports social cognition under stress. Further, participants who reported to exercise at least once a week showed higher perspective taking under stress than less active participants. Finally, we found tentative evidence for participants who exercised regularly to show reduced predicted anger in response to an ambiguous provocation. Our findings suggest that good physiological regulation and regular physical exercise support social cognition under stress.
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Affiliation(s)
- Jenni E Kähkönen
- Department of Biological and Experimental Psychology, Queen Mary University of London, London, UK
| | - Ulrike M Krämer
- Department of Neurology, University of Lübeck, Lübeck, Germany
- Department of Psychology, University of Lübeck, Lübeck, Germany
| | - Macià Buades-Rotger
- Department of Neurology, University of Lübeck, Lübeck, Germany
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Frederike Beyer
- Department of Biological and Experimental Psychology, Queen Mary University of London, London, UK
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11
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Chester DS, Martelli AM, West SJ, Lasko EN, Brosnan P, Makhanova A, Meltzer AL, McNulty JK. Neural mechanisms of intimate partner aggression. Biol Psychol 2021; 165:108195. [PMID: 34592359 DOI: 10.1016/j.biopsycho.2021.108195] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 11/24/2022]
Abstract
People sometimes hurt those they profess to love; yet our understanding of intimate partner aggression (IPA) and its causes remains incomplete. We examined brain activity using functional magnetic resonance imaging (fMRI) in an ethnically and racially diverse sample of 50 female-male, monogamous romantic couples as they completed an aggression task against their intimate partner, a close friend, and a different-sex stranger. Laboratory and real-world IPA were uniquely associated with altered activity within and connectivity between cortical midline structures that subserve social cognition and the computation of value. Men's IPA most corresponded to lower posterior cingulate reactivity during provocation and women's IPA most corresponded to lower ventromedial prefrontal cortex activity during IPA itself. Actor-partner independence modeling suggested women's IPA may correspond to their male partner's neural reactivity to provocation. Broadly, these findings highlight the importance of self-regulatory functions of the medial cortex and away from effortful inhibition subserved by dorsolateral cortices.
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Affiliation(s)
- David S Chester
- Department of Psychology, Virginia Commonwealth University, Richmond, VA 23284, USA.
| | - Alexandra M Martelli
- Department of Psychology, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Samuel J West
- Department of Psychology, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Emily N Lasko
- Department of Psychology, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Phoebe Brosnan
- Department of Psychological & Brain Sciences, Boston University, Boston, MA 02215, USA
| | - Anastasia Makhanova
- Department of Psychological Science, University of Arkansas, Fayetteville, AR 72701, USA
| | - Andrea L Meltzer
- Department of Psychology, Florida State University, Tallahassee, FL 32306, USA
| | - James K McNulty
- Department of Psychology, Florida State University, Tallahassee, FL 32306, USA
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12
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Chen B, Wu X, Geniole SN, Ge Q, Chen Q, Zhao Y. Neural activity during provocation and aggressive responses in people from different social classes. CURRENT PSYCHOLOGY 2021. [DOI: 10.1007/s12144-021-01925-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Buades-Rotger M, Göttlich M, Weiblen R, Petereit P, Scheidt T, Keevil BG, Krämer UM. Low Competitive Status Elicits Aggression in Healthy Young Men: Behavioral and Neural Evidence. Soc Cogn Affect Neurosci 2021; 16:1123-1137. [PMID: 33959776 PMCID: PMC8599182 DOI: 10.1093/scan/nsab061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 04/23/2021] [Accepted: 05/05/2021] [Indexed: 11/14/2022] Open
Abstract
Winners are commonly assumed to compete more aggressively than losers. Here, we find overwhelming evidence for the opposite. We first demonstrate that low-ranking teams commit more fouls than they receive in top-tier soccer, ice hockey, and basketball men's leagues. We replicate this effect in the laboratory, showing that male participants deliver louder sound blasts to a rival when placed in a low-status position. Using neuroimaging, we characterize brain activity patterns that encode competitive status as well as those that facilitate status-dependent aggression in healthy young men. These analyses reveal three key findings. First, anterior hippocampus and striatum contain multivariate representations of competitive status. Second, interindividual differences in status-dependent aggression are linked with a sharper status differentiation in the striatum and with greater reactivity to status-enhancing victories in the dorsal anterior cingulate cortex. Third, activity in ventromedial, ventrolateral, and dorsolateral prefrontal cortex is associated with trial-wise increases in status-dependent aggressive behavior. Taken together, our results run counter to narratives glorifying aggression in competitive situations. Rather, we show that those in the lower ranks of skill-based hierarchies are more likely to behave aggressively and identify the potential neural basis of this phenomenon.
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Affiliation(s)
- Macià Buades-Rotger
- Department of Neurology, University of Lübeck, Lübeck, Germany.,Department of Psychology, University of Lübeck, Lübeck, Germany.,Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands
| | - Martin Göttlich
- Department of Neurology, University of Lübeck, Lübeck, Germany
| | - Ronja Weiblen
- Department of Neurology, University of Lübeck, Lübeck, Germany.,Department of Psychiatry and Psychotherapy, University of Lübeck, Lübeck, Germany
| | | | - Thomas Scheidt
- Department of Neurology, University of Lübeck, Lübeck, Germany
| | - Brian G Keevil
- Department of Clinical Biochemistry, University Hospital of South Manchester, Manchester, UK
| | - Ulrike M Krämer
- Department of Neurology, University of Lübeck, Lübeck, Germany.,Department of Psychology, University of Lübeck, Lübeck, Germany.,Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany
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14
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Klaus J, Schutter DJLG. Functional topography of anger and aggression in the human cerebellum. Neuroimage 2020; 226:117582. [PMID: 33221449 DOI: 10.1016/j.neuroimage.2020.117582] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 01/29/2023] Open
Abstract
New insights into the functional neuroanatomic correlates of emotions point toward the involvement of the cerebellum in anger and aggression. To identify cerebellar regions commonly activated in tasks examining the experience of anger and threat as well as exerting an aggressive response, two coordinate-based activation likelihood estimation meta-analyses reporting a total of 57 cerebellar activation foci from 819 participants were performed. For anger processing (18 studies), results showed significant clusters in the bilateral posterior cerebellum, overlapping with results from previous meta-analyses on emotion processing, and implying functional connectivity to cognitive, limbic, and social canonic networks in the cerebral cortex. By contrast, active aggression expression (10 studies) was associated with significant clusters in more anterior regions of the cerebellum, overlapping with cerebellar somatosensory and motor regions and displaying functional connectivity with the somatomotor and default mode network. This study not only strengthens the notion that the cerebellum is involved in emotion processing, but also provides the first quantitative evidence for distinct cerebellar functional activation patterns related to anger and aggression.
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Affiliation(s)
- Jana Klaus
- Utrecht University, Helmholtz Institute, Department of Experimental Psychology The Netherlands
| | - Dennis J L G Schutter
- Utrecht University, Helmholtz Institute, Department of Experimental Psychology The Netherlands.
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15
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Nordman J, Li Z. The Dorsal Raphe Regulates the Duration of Attack through the Medial Orbitofrontal Cortex and Medial Amygdala. eNeuro 2020; 7:ENEURO.0331-20.2020. [PMID: 33055195 PMCID: PMC7665904 DOI: 10.1523/eneuro.0331-20.2020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/21/2020] [Accepted: 09/25/2020] [Indexed: 12/20/2022] Open
Abstract
The dorsal raphe (DR) is an evolutionarily conserved brain structure that is involved in aggressive behavior. It projects onto numerous cortical and limbic areas underlying attack behavior. The specific neurocircuit through which the DR regulates aggression, however, is largely unclear. In this study we show that DR neurons expressing CaMKIIα are activated by attack behavior in mice. These neurons project to the medial aspect of the orbitofrontal cortex (OFC; MeOC) and the medial amygdala (MeA), two key regions within the neural circuit known to control aggressive behavior. Using an in vivo optogenetic approach, we show that attack bouts are shortened by inhibiting CaMKIIα+ neurons in the DR and their axons at the MeOC and prolonged by stimulating the DR-MeOC axons during an attack. By contrast, stimulating the axons of CaMKIIα+ DR neurons at the MeA shortens attack. Notably, neither the DR-MeOC or DR-MeA pathway initiates attack when stimulated. These results indicate that the DR-MeOC and DR-MeA pathways regulate the duration of attack behavior in opposite directions, revealing a circuit mechanism for the control of attack by the DR.
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Affiliation(s)
- Jacob Nordman
- Section on Synapse Development Plasticity, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892
- National Institute of General Medical Sciences, National Institutes of Health, Bethesda, MD 20892
| | - Zheng Li
- Section on Synapse Development Plasticity, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892
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16
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Siep N, Tonnaer F, van de Ven V, Arntz A, Raine A, Cima M. Anger provocation increases limbic and decreases medial prefrontal cortex connectivity with the left amygdala in reactive aggressive violent offenders. Brain Imaging Behav 2020; 13:1311-1323. [PMID: 30145716 PMCID: PMC6732149 DOI: 10.1007/s11682-018-9945-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Neurobiological models propose reactive aggression as a failure in emotion regulation, caused by an imbalance between prefrontal cortical control and excessive bottom-up signals of negative affect by limbic regions, including the amygdala. Therefore, we hypothesize a negative correlation between PFC and amygdala activity (pre/post resting-state scans) in violent offenders. In this study resting-state fMRI was administered before and after an emotion (anger and happiness) provocation or engagement task within 18 male violent offenders scoring high on reactive aggression, and 18 male non-offender controls. Research in emotional pre/post resting-state showed altered connectivity by task performance. Therefore, bilateral amygdala region of interest (ROI) whole brain functional connectivity analysis tested dynamic change differences between pre and post resting-state connectivity between groups. Self-reported anger showed a positive significant relationship with medial prefrontal cortex activity in the pre-task scan and significantly increased during the emotion task in both the violent and control group. Imaging results showed a significant decrease in amygdala – medial prefrontal functional connectivity in the violent offenders and an increase in the non-offender controls after the emotion task. The opposite pattern was found for amygdala connectivity with the (para) limbic regions: violent offenders showed increased connectivity and non-offender controls showed decreased connectivity. The present results indicate that reactive aggression might stem from a focus on emotion processing, as indicated by an increase in limbic functional connectivity. The combination of a focus on emotion, along with a lack of medial prefrontal cortex regulation, has the potential to grow out of control e.g. in reactive aggression.
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Affiliation(s)
- Nicolette Siep
- Department of Clinical Psychological Science, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
| | - Franca Tonnaer
- Department of Clinical Psychological Science, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Department of Research, Forensic Psychiatric Centre de Rooyse Wissel, Venray, The Netherlands
| | - Vincent van de Ven
- Department of Cognitive Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Arnoud Arntz
- Department of Clinical Psychological Science, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands
- Department of Clinical Psychology, University of Amsterdam, Amsterdam, The Netherlands
| | - Adrian Raine
- Departments of Criminology, Psychiatry, and Psychology, University of Pennsylvania, Pennsylvania, PA USA
| | - Maaike Cima
- Department of Developmental Psychopathology, Behavioural Science Institute, Radboud University Nijmegen, Nijmegen, The Netherlands
- Conrisq Group, Juvenile Youth Institutions (YouthCarePLUS), BJ Brabant, OGH Zetten & Pactum, Zetten, The Netherlands
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17
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Cerniglia L, Bartolomeo L, Capobianco M, Lo Russo SLM, Festucci F, Tambelli R, Adriani W, Cimino S. Intersections and Divergences Between Empathizing and Mentalizing: Development, Recent Advancements by Neuroimaging and the Future of Animal Modeling. Front Behav Neurosci 2019; 13:212. [PMID: 31572143 PMCID: PMC6754072 DOI: 10.3389/fnbeh.2019.00212] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 08/29/2019] [Indexed: 01/10/2023] Open
Abstract
Both mentalization and empathy allow humans to understand others, through the representation of their mental states or their mood, respectively. The present review aims to explain those characteristics which are shared between empathy and the Theory of Mind. Research in neuroscience, based on naturalistic paradigms, has shown that abilities to mentalize and to empathize are associated with the activation of different neuro-cognitive circuits. As far as mirror-neuron processes are concerned, some structures (like Anterior Insula, AI; Anterior Cingulate Cortex, ACC) play a role both in the representation of one's own affective states and in comprehension of the same affective state when experienced by others. As for mentalization, the temporal parietal junction (TPj) and temporal poles (TP), the upper posterior temporal sulcus (pSTS) and the medial prefrontal cortex (mPFC) are greatly involved: the latter appears involved in the attribution of one's own and others' temperaments. Interestingly, the ventral/orbital portion of the PFC (orbito-frontal cortex, OFC) is involved in subserving shared affective experience during cognitive mentalizing. This brain region represents a point of overlap, from a psycho-biological point of view, where emotional mirroring and affective cognition meet up. As for animal models, laboratory rodents can well be tested for prosocial behavior. Some examples include deliberate actions, allowing another conspecific the possibility to feed ("giving food"): this willingness can vary across donors, depending on how the recipient is perceived. Other examples include the possibility to let a trapped conspecific come out ("giving help"). The state-of-the-art knowledge about this theme can inform the programming of specific clinical interventions, based on the reinforcement of empathic and/or mentalization abilities.
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Affiliation(s)
- Luca Cerniglia
- Faculty of Psychology, International Telematic University Uninettuno, Rome, Italy
| | - Letizia Bartolomeo
- Faculty of Psychology, International Telematic University Uninettuno, Rome, Italy
| | - Micaela Capobianco
- Faculty of Psychology, International Telematic University Uninettuno, Rome, Italy
| | - Sara Lucia M. Lo Russo
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Fabiana Festucci
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Renata Tambelli
- Department of Dynamic and Clinical Psychology, “Sapienza” University of Rome, Rome, Italy
| | - Walter Adriani
- Faculty of Psychology, International Telematic University Uninettuno, Rome, Italy
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - Silvia Cimino
- Department of Dynamic and Clinical Psychology, “Sapienza” University of Rome, Rome, Italy
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18
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Neural networks of aggression: ALE meta-analyses on trait and elicited aggression. Brain Struct Funct 2018; 224:133-148. [PMID: 30291479 DOI: 10.1007/s00429-018-1765-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 09/27/2018] [Indexed: 12/19/2022]
Abstract
There is considerable evidence that emotion dysregulation and self-control impairments lead to escalated aggression in populations with psychiatric disorders. However, convergent quantitative evidence on the neural network explaining how aggression arises is still lacking. To address this gap, peak activations extracted from extant functional magnetic resonance imaging (fMRI) studies were synthesized through coordinate-based meta-analyses. A systematic search in the PubMed database was conducted and 26 fMRI studies met the inclusion criteria. Three separate activation likelihood estimation (ALE) meta-analyses were performed on (1) individual differences in trait aggression (TA) studies, (2) individual differences in TA studies examining executive functioning, and (3) elicited aggression (EA) studies across fMRI behavioral paradigms. Ensuing clusters from ALE meta-analyses were further treated as seeds for follow-up investigations on consensus connectivity networks (CCN) delineated from meta-analytic connectivity modeling (MACM) and resting-state functional connectivity (RSFC) to further characterize their physiological functions. Finally, we obtained a data-driven functional characterization of the ensuing clusters and their networks. This approach offers a boarder view of the ensuing clusters using a boarder network perspective. In TA, aberrant brain activations were found only in the right precuneus. Follow-up analyses revealed that the precuneus seed was within the frontal-parietal network (FPN) associated with action inhibition, visuospatial processing and higher-level cognition. With further restricting to only experiments examining executive functioning, convergent evidence was found in the right rolandic operculum (RO), midcingulate cortex (MCC), precentral gyrus (PrG) and precuneus. Follow-up analyses suggested that RO, MCC and PrG may belong to a common cognitive control network, while the MCC seems to be the hub of this network. In EA, we only revealed a convergent region in the left postcentral gyrus. Follow-up CCN analyses and functional characterizations suggested that this region may also belong to the same cognitive control network found in the TA sub-analysis. Our results suggested that escalated aggression arises from abnormal precuneus activities within the FPN, disrupting the recruitment of other large-scale networks such as adaptive cognitive control network. Consequently, failure to recruit such a network results in an inability to generate adaptive responses, increasing the likelihood of acting aggressively.
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19
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Beyer F, Buades-Rotger M, Claes M, Krämer UM. Hit or Run: Exploring Aggressive and Avoidant Reactions to Interpersonal Provocation Using a Novel Fight-or-Escape Paradigm (FOE). Front Behav Neurosci 2017; 11:190. [PMID: 29089875 PMCID: PMC5650963 DOI: 10.3389/fnbeh.2017.00190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 09/28/2017] [Indexed: 11/13/2022] Open
Abstract
Interpersonal provocation presents an approach-avoidance conflict to the provoked person: responding aggressively might yield the joy of retribution, whereas withdrawal can provide safety. Experimental aggression studies typically measure only retaliation intensity, neglecting whether individuals want to confront the provocateur at all. To overcome this shortcoming of previous measures, we developed and validated the Fight-or-Escape paradigm (FOE). The FOE is a competitive reaction time (RT) task in which the winner can choose the volume of a sound blast to be directed at his/her opponent. Participants face two ostensible opponents who consistently select either high or low punishments. At the beginning of each trial, subjects are given the chance to avoid the encounter for a limited number of times. In a first experiment (n = 27, all women), we found that fear potentiation (FP) of the startle response was related to lower scores in a composite measure of aggression and avoidance against the provoking opponent. In a second experiment (n = 34, 13 men), we altered the paradigm such that participants faced the opponents in alternating rather than in random order. Participants completed the FOE as well as the Dot-Probe Task (DPT) and the Approach-Avoidance Task (AAT). Subjects with higher approach bias scores in the AAT avoided the provoking opponent less frequently. Hence, individuals with high threat reactivity and low approach motivation displayed more avoidant responses to provocation, whereas participants high in approach motivation were more likely to engage in aggressive interactions when provoked. The FOE is thus a promising laboratory measure of avoidance and aggression.
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Affiliation(s)
- Frederike Beyer
- Institute of Cognitive Neuroscience, University College London, London, United Kingdom
| | - Macià Buades-Rotger
- Department of Neurology, University of Lübeck, Lübeck, Germany.,Institute of Psychology II, University of Lübeck, Lübeck, Germany
| | - Marie Claes
- Department of Neurology, University of Lübeck, Lübeck, Germany
| | - Ulrike M Krämer
- Department of Neurology, University of Lübeck, Lübeck, Germany.,Institute of Psychology II, University of Lübeck, Lübeck, Germany
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