Alle Publikationen
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2016
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(2016): Towards a Computational Comparative Neuroprimatology. Framing the language-ready brain. In: PHYSICS OF LIFE REVIEWS 16, S. 1-54. DOI: 10.1016/j.plrev.2015.09.003
DOI: http://www.ncbi.nlm.nih.gov/pubmed/26482863 Abstract: We make the case for developing a Computational Comparative Neuroprimatology to inform the analysis of the function and evolution of the human brain. First, we update the mirror system hypothesis on the evolution of the language-ready brain by (i) modeling action and action recognition and opportunistic scheduling of macaque brains to hypothesize the nature of the last common ancestor of macaque and human (LCA-m); and then we (ii) introduce dynamic brain modeling to show how apes could acquire gesture through ontogenetic ritualization, hypothesizing the nature of evolution from LCA-m to the last common ancestor of chimpanzee and human (LCA-c). We then (iii) hypothesize the role of imitation, pantomime, protosign and protospeech in biological and cultural evolution from LCA-c to Homo sapiens with a language-ready brain. Second, we suggest how cultural evolution in Homo sapiens led from protolanguages to full languages with grammar and compositional semantics. Third, we assess the similarities and differences between the dorsal and ventral streams in audition and vision as the basis for presenting and comparing two models of language processing in the human brain: A model of (i) the auditory dorsal and ventral streams in sentence comprehension; and (ii) the visual dorsal and ventral streams in defining "what language is about" in both production and perception of utterances related to visual scenes provide the basis for (iii) a first step towards a synthesis and a look at challenges for further research.
Keywords: Animals, Ape gesture, Auditive Faktoren, Biological Evolution, Computational Biology, Cultural evolution, Dorsal and ventral stream, dorsale und ventrale Ströme, Dyadic brain modeling, dynamic brain modelling, Evolution, Gehirnfunktion, Grammatik, Humans, Im (wissenschaftlichen) Diskurs, Imitation, Intellektualtechnik, Kogn. Architektur, kognitive Architekturen, Kognitive Skills/Social Cognition, Kompositionale Semantik, Künstliche Intelligenz, Language, Language evolution, language-ready brain, Mensch-Technik-Relationen (MTR), Models, Neurological, Ontologische Differenzierungen: Tier, Mensch, Maschine, Pantomime, Primates, Protosprachen, Psychomotor Performance, Realtechnik, Reflexionen über MTR, sprachbereites Gehirn, Sprache, Sprachevolution, Sprachfähigkeit, Sprachverstehen, Technik, Tier, Mensch, Maschine, Tier-Mensch-Vergleich, Vollsprachigkeit (vs. Protosprachigkeit) 2013
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(2013): Being and feeling in sync with an adaptive virtual partner. Brain mechanisms underlying dynamic cooperativity. In: Cerebral cortex (New York, N.Y. : 1991) 23 (11), S. 2592-2600. DOI: 10.1093/cercor/bhs243
DOI: http://www.ncbi.nlm.nih.gov/pubmed/22892422 Abstract: Cooperation is intrinsic to the human ability to work together toward common goals, and depends on sensing and reacting to dynamically changing relationships between coacting partners. Using functional magnetic resonance imaging (fMRI) and a paradigm in which an adaptive pacing signal simulates a virtual partner, we examined the neural substrates underlying dynamic joint action. A single parameter controlled the degree to which the virtual partner adapted its behavior in relation to participant taps, thus simulating varying degrees of cooperativity. Analyses of fMRI data using objective and subjective measures of synchronization quality found the relative balance of activity in two distinct neural networks to depend on the degree of the virtual partner's adaptivity. At lower degrees of adaptivity, when the virtual partner was easier to synchronize with, cortical midline structures were activated in conjunction with premotor areas, suggesting a link between the action and socio-affective components of cooperation. By contrast, right lateral prefrontal areas associated with central executive control processes were recruited during more cognitively challenging interactions while synchronizing with an overly adaptive virtual partner. Together, the reduced adaptive sensorimotor synchronization paradigm and pattern of results illuminate neural mechanisms that may underlie the socio-emotional consequences of different degrees of entrainment success.
Keywords: Acoustic Stimulation, adaptation, Adult, Anpassung, BRAIN, Brain Mapping, Cooperative Behavior, Emotions, Female, Gehirnfunktion, Humans, Kognitionswissenschaft/Social Sciences/Humanities, Kognitive Skills/Social Cognition, Kooperation, Magnetic Resonance Imaging, Male, Photic Stimulation, physiology, Psychological, Sensory Feedback, User-Computer Interface, Young Adult 2010
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(2010): Hippocampal contributions to the processing of architectural ranking. In: NEUROIMAGE 50 (2), S. 742-752
Abstract: Theories of rhetoric and architecture suggest that buildings designed to be high ranking according to the Western architectural decorum have more impact on the minds of their beholders than low-ranking buildings. Here, we used event-related potentials in a visual object categorization task to probe this assumption and to examine whether the hippocampus contributes to the processing of architectural ranking. We found that early negative potentials between 200 and 400 ms differentiated between high- and low-ranking buildings in healthy subjects and patients with temporal lobe epilepsy with and without hippocampal sclerosis. By contrast, late positive potentials between 400 and 600 ms were higher in amplitude to high-ranking buildings only in healthy subjects and TLE patients without but not in TLE patients with hippocampal sclerosis. These findings suggest that the differentiation between high- and low-ranking buildings entails both early visual object selection and late post-model selection processes and that the hippocampus proper contributes critically to this second stage of visual object categorization.
2007
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(2007): A Dual Mechanism Neural Framework for Social Understanding. In: Philosophical Psychology 20 (1), S. 43-63. DOI: 10.1080/09515080601085864
Abstract: In this paper a theoretical framework is proposed for how the brain processes the information necessary for us to achieve the understanding of others that we experience in our social worlds. Our framework attempts to expand several previous approaches to more fully account for the various data on interpersonal understanding and to respond to theoretical critiques in this area. Specifically, we propose that social understanding must be achieved by at least two mechanisms in the brain that are capable of parallel information processing. The first mechanism, based on research into mirror matching systems in the brain, suggests that representations of others are mapped onto an observer's representations of these same schemas in order to understand them. The second mechanism requires semantic analysis of a given social situation in order to understand the actions of others and most likely involves conscious processes. We suggest that experimental correlates of these systems should be dissociable using both behavioral and neuroimaging techniques.
Keywords: Gehirnfunktion, Intellektualtechnik, Interaktionspartner, interpersonal, interpersonal communication, Kogn. Architektur, Kognitionswissenschaft/Social Sciences/Humanities, kognitive Architekturen, Kognitive Skills/Social Cognition, Künstliche Intelligenz, Mensch-Technik-Relationen (MTR), Neuronale Netzwerke, Neurowissenschaften, Philosophical Psychology, Realtechnik, Semantics, Semantik, Situationsbedingter Kontext, Sozialverstehen, Technik, theory of mind
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