Alle Publikationen
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2017
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(2017): Implicit moral evaluations. A multinomial modeling approach. In: Cognition 158, S. 224-241. DOI: 10.1016/j.cognition.2016.10.013
DOI: http://www.ncbi.nlm.nih.gov/pubmed/27865113 Abstract: Implicit moral evaluations-i.e., immediate, unintentional assessments of the wrongness of actions or persons-play a central role in supporting moral behavior in everyday life. Yet little research has employed methods that rigorously measure individual differences in implicit moral evaluations. In five experiments, we develop a new sequential priming measure-the Moral Categorization Task-and a multinomial model that decomposes judgment on this task into multiple component processes. These include implicit moral evaluations of moral transgression primes (Unintentional Judgment), accurate moral judgments about target actions (Intentional Judgment), and a directional tendency to judge actions as morally wrong (Response Bias). Speeded response deadlines reduced Intentional Judgment but not Unintentional Judgment (Experiment 1). Unintentional Judgment was stronger toward moral transgression primes than non-moral negative primes (Experiments 2-4). Intentional Judgment was associated with increased error-related negativity, a neurophysiological indicator of behavioral control (Experiment 4). Finally, people who voted for an anti-gay marriage amendment had stronger Unintentional Judgment toward gay marriage primes (Experiment 5). Across Experiments 1-4, implicit moral evaluations converged with moral personality: Unintentional Judgment about wrong primes, but not negative primes, was negatively associated with psychopathic tendencies and positively associated with moral identity and guilt proneness. Theoretical and practical applications of formal modeling for moral psychology are discussed.
Keywords: Adult, Cerebral Cortex/physiology, Cognition/physiology, Electroencephalography, Evoked Potentials, Female, Guilt, Humans, Individuality, Intention, Judgment/physiology, Kognitionswissenschaften, Male, Middle Aged, Models, Psychological, Moral, Morals, Neuropsychological Tests, Personality, Personality Assessment, science direct, Shame, Social Perception 2016
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(2016): The neural correlates of moral decision-making. A systematic review and meta-analysis of moral evaluations and response decision judgements. In: Brain and Cognition 108, S. 88-97. DOI: 10.1016/j.bandc.2016.07.007
DOI: http://www.ncbi.nlm.nih.gov/pubmed/27566002 Abstract: The aims of this systematic review were to determine: (a) which brain areas are consistently more active when making (i) moral response decisions, defined as choosing a response to a moral dilemma, or deciding whether to accept a proposed solution, or (ii) moral evaluations, defined as judging the appropriateness of another's actions in a moral dilemma, rating moral statements as right or wrong, or identifying important moral issues; and (b) shared and significantly different activation patterns for these two types of moral judgements. A systematic search of the literature returned 28 experiments. Activation likelihood estimate analysis identified the brain areas commonly more active for moral response decisions and for moral evaluations. Conjunction analysis revealed shared activation for both types of moral judgement in the left middle temporal gyrus, cingulate gyrus, and medial frontal gyrus. Contrast analyses found no significant clusters of increased activation for the moral evaluations-moral response decisions contrast, but found that moral response decisions additionally activated the left and right middle temporal gyrus and the right precuneus. Making one's own moral decisions involves different brain areas compared to judging the moral actions of others, implying that these judgements may involve different processes.
2011
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(2011): Dissociable brain mechanisms for processing social exclusion and rule violation. In: NEUROIMAGE 54 (3), S. 2462-2471. DOI: 10.1016/j.neuroimage.2010.10.049
DOI: http://www.ncbi.nlm.nih.gov/pubmed/20974272 Abstract: Social exclusion inherently involves an element of expectancy violation, in that we expect other people to follow the unwritten rule to include us in social interactions. In this functional magnetic resonance imaging (fMRI) study, we employed a unique modification of an interactive virtual ball-tossing game called "Cyberball" (Williams et al., 2000) and a novel paradigm called "Cybershape," in which rules are broken in the absence of social exclusion, to dissociate brain regions that process social exclusion from rule violations more generally. Our Cyberball game employed an alternating block design and removed evoked responses to events when the participant was throwing the ball in inclusion to make this condition comparable to exclusion, where participants did not throw. With these modifications, we replicated prior findings of ventral anterior cingulate cortex (vACC), insula, and posterior cingulate cortex activity evoked by social exclusion relative to inclusion. We also identified exclusion-evoked activity in the hippocampi, left ventrolateral prefrontal cortex, and left middle temporal gyrus. Comparing social exclusion and rule violation revealed a functional dissociation in the active neural systems as well as differential functional connectivity with vACC. Some overlap was observed in regions differentially modulated by social exclusion and rule violation, including the vACC and lateral parietal cortex. These overlapping brain regions showed different activation during social exclusion compared to rule violation, each relative to fair play. Comparing activation patterns to social exclusion and rule violation allowed for the dissociation of brain regions involved in the experience of exclusion versus expectancy violation. zitiert von 96
Keywords: Brain/physiology, Cerebral Cortex/physiology, Computer Graphics, Data Interpretation, Statistical, Female, Games, Experimental, Humans, Image Processing, Computer-Assisted, Interpersonal Relations, Magnetic Resonance Imaging, Male, Nerve Net/physiology, Neural Pathways/physiology, Neurowissenschaften, Psychophysics, Rejection (Psychology), rules, science direct, Social Environment, Social Perception, Young Adult 2004
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(2004): Thinking the voice: neural correlates of voice perception. In: Trends in cognitive sciences 8 (3), S. 129-135. DOI: 10.1016/j.tics.2004.01.008
DOI: https://doi.org/10.1016/j.tics.2004.01.008 Abstract: The human voice is the carrier of speech, but also an "auditory face" that conveys important affective and identity information. Little is known about the neural bases of our abilities to perceive such paralinguistic information in voice. Results from recent neuroimaging studies suggest that the different types of vocal information could be processed in partially dissociated functional pathways, and support a neurocognitive model of voice perception largely similar to that proposed for face perception.
Keywords: Auditory Perception/physiology, Brain Mapping, Cerebral Cortex/physiology, Concept Formation/physiology, Humans, Image Processing, Computer-Assisted, Imaging, Three-Dimensional, Interpersonal Relations, Magnetic Resonance Imaging, Positron-Emission Tomography, Sound Spectrography, Speech Acoustics, Speech Perception/physiology, VOICE
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