Alle Publikationen
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2015
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(2015): The overlapping relationship between emotion perception and theory of mind. In: Neuropsychologia 70, S. 1-10. DOI: 10.1016/j.neuropsychologia.2015.02.018
DOI: https://doi.org/10.1016/j.neuropsychologia.2015.02.018 Abstract: Socio-cognitive skills are crucial for successful interpersonal interactions. Two particularly important socio-cognitive processes are emotion perception (EP) and theory of mind (ToM), but agreement is lacking on terminology and conceptual links between these constructs. Here we seek to clarify the relationship between the two at multiple levels, from concept to neuroanatomy. EP is often regarded as a low-level perceptual process necessary to decode affective cues, while ToM is usually seen as a higher-level cognitive process involving mental state deduction. In information processing models, EP tends to precede ToM. At the neuroanatomical level, lesion study data suggest that EP and ToM are both right-hemisphere based, but there is also evidence that ToM requires temporal-cingulate networks, whereas EP requires partially separable regions linked to distinct emotions. Common regions identified in fMRI studies of EP and ToM have included medial prefrontal cortex and temporal lobe areas, but differences emerge depending on the perceptual, cognitive and emotional demands of the EP and ToM tasks. For the future, clarity of definition of EP and ToM will be paramount to produce distinct task manipulations and inform models of socio-cognitive processing.
2010
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(2010): Neural bases of the non-conscious perception of emotional signals. In: Nature reviews. Neuroscience 11 (10), S. 697-709. DOI: 10.1038/nrn2889
DOI: http://www.ncbi.nlm.nih.gov/pubmed/20811475 Abstract: Many emotional stimuli are processed without being consciously perceived. Recent evidence indicates that subcortical structures have a substantial role in this processing. These structures are part of a phylogenetically ancient pathway that has specific functional properties and that interacts with cortical processes. There is now increasing evidence that non-consciously perceived emotional stimuli induce distinct neurophysiological changes and influence behaviour towards the consciously perceived world. Understanding the neural bases of the non-conscious perception of emotional signals will clarify the phylogenetic continuity of emotion systems across species and the integration of cortical and subcortical activity in the human brain.
2009
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(2009): Is family special to the brain? An event-related fMRI study of familiar, familial, and self-face recognition. In: Neuropsychologia 47 (3), S. 849-858. DOI: 10.1016/j.neuropsychologia.2008.12.027
DOI: http://www.ncbi.nlm.nih.gov/pubmed/19159636 Abstract: The face-processing network has evolved to respond differentially to different classes of faces depending on their relevance to the perceiver. For example, self-, familiar, and unknown faces are associated with activation in different neural substrates. Family should represent a special class of face stimuli that is of high relevance to individuals, because incorrect assignment of kinship can have dire consequences (e.g., incest, cuckoldry). Therefore evolution should have favored redundant mechanisms for detection of kin. We used fMRI to investigate the neural substrates associated with viewing faces of kin compared to other classes of faces (e.g., self-face, familiar face, and unknown face), and to examine the degree to which self-facial resemblance activated similar neural substrates. Contrasting kin faces with unknown faces activated substrates associated with self-face recognition, while comparing kin faces to friend faces activated posterior cingulate and cuneus. Similar posterior medial substrates were recruited when contrasting self-resembling faces with morphed faces of kin, suggesting these regions potentially represent computational processing about facial familiarity and identity. On the other hand, discrimination of self-resembling faces from familiar morphs activated anterior medial substrates (anterior cingulate cortex, ACC, medial prefrontal cortex, MPFC). These findings, and a region of interest (ROI) analysis, highlight the role of the extended face-processing network for discrimination of kin from familiar non-kin members of one's social group based on self-referent phenotypic cues.
Keywords: Adult, Bekanntheitsgrad, Brain/anatomy & histology/physiology, Discrimination (Psychology)/physiology, Face, familiarity, Female, Gesichtserkennung, Gesichtszüge, Gyrus Cinguli/physiology, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Neurowissenschaften, Pattern Recognition, Visual/physiology, Prefrontal Cortex/physiology, Visual Perception/physiology, Young Adult 2008
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(2008): Culture-sensitive neural substrates of human cognition. A transcultural neuroimaging approach. In: Nature reviews. Neuroscience 9 (8), S. 646-654. DOI: 10.1038/nrn2456
DOI: http://www.ncbi.nlm.nih.gov/pubmed/18641669 Abstract: Our brains and minds are shaped by our experiences, which mainly occur in the context of the culture in which we develop and live. Although psychologists have provided abundant evidence for diversity of human cognition and behaviour across cultures, the question of whether the neural correlates of human cognition are also culture-dependent is often not considered by neuroscientists. However, recent transcultural neuroimaging studies have demonstrated that one's cultural background can influence the neural activity that underlies both high- and low-level cognitive functions. The findings provide a novel approach by which to distinguish culture-sensitive from culture-invariant neural mechanisms of human cognition.
Keywords: Attention/physiology, Brain Mapping/methods, Brain/anatomy & histology/physiology, chemisch / neurologisch / medikamentös / durch Substanzen, Cognition/physiology, Culture, culture sensitive, Disziplin, Environment, Humans, Kognitionswissenschaft/Social Sciences/Humanities, Kulturinvarianz, Kulturtheorie, Neurowissenschaften, Perception/physiology, Social Behavior
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