Dissertations / Theses on the topic 'Neurowissenschaften'
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Hawel, Christian. "Willensfreiheit im Kontext der Neurowissenschaften." Berlin wvb, Wiss. Verl, 2004. http://www.wvberlin.de/data/inhalt/hawel.htm.
Full textKindlinger, Marcus. "Neurowissenschaften und Spieltheorie Untersuchungen zum Gefangenendilemma." Hamburg Diplomica-Verl, 2009. http://d-nb.info/100154871X/04.
Full textCabanis, Maurice [Verfasser]. "Gesellschaftliche Implikationen kognitiver Neurowissenschaften / Maurice Cabanis." Lübeck : Zentrale Hochschulbibliothek Lübeck, 2018. http://d-nb.info/1170371736/34.
Full textKühnpast, Nicole. "Zur Bedeutung der Neurowissenschaften für das Marketing /." München : FGM-Verl, 2004. http://www.gbv.de/dms/zbw/390970085.pdf.
Full textNagel, Saskia K. "Ethics and the neurosciences ethical and social consequences of neuroscientific progress." Paderborn Mentis, 2008. http://d-nb.info/1001079248/04.
Full textBritschgi, Mirjam. "Das Leib-Seele-Problem - Von der Philosophi zu den Neurowissenschaften /." Zürich : Hochschule für Angewandte Psychologie, 2007. http://www.zhaw.ch/fileadmin/user_upload/psychologie/Downloads/Bibliothek/Arbeiten/D/d1973.pdf.
Full textSchulz, Arne. "Neuromarketing und Markenpolitik : wie das Markenmanagement von den Neurowissenschaften profitiert /." Hamburg : Diplomica Verl, 2007. http://www.diplom.de/katalog/arbeit/10439.
Full textKetteler, Daniel Matthias. "Gottfried Benns Sozialisation als Dichterarzt im Spannungsfeld zeitgenössischer neurowissenschaftlicher und sinnesphysiologischer Diskurse /." Aachen : Shaker, 2008. http://d-nb.info/990658791/04.
Full textKrenmayr, Jörg. "Freier Wille: eine reale Empfindung!? : eine neurowissenschaftlich basierte, ganzheitliche und funktionalistische Konzeption des menschlichen Geistes und dessen Willen /." Saarbrücken : VDM, Verl. Dr. Müller, 2008. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=017736134&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textHerold, Christina. "Die Verarbeitung emotionaler Konnotation eine EEG-Studie /." [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-64099.
Full textMoga, Ioan. "Orthodoxe Theologie und die anthropologische Herausforderung der Neurowissenschaften Beiträge zum Dialog." Hamburg Kovač, 2003. http://www.verlagdrkovac.de/3-8300-2412-6.htm.
Full textRubehn, Birthe [Verfasser], and Thomas [Akademischer Betreuer] Stieglitz. "Polymer-based microimplants for the neurosciences = Polymerbasierte Mikroimplantate für die Neurowissenschaften." Freiburg : Universität, 2010. http://d-nb.info/1123459444/34.
Full textMani, Barbara. "Emotionales Lernen unter neurowissenschaftlichen Aspekten /." Zürich : Hochschule für Heilpädagogik, 2009. http://www.bscw-hfh.ch/pub/bscw.cgi/d4395137/ManiBA.pdf.
Full textDieter, Anne. "Die antiken Traditionen des europäischen Bildungsverständnisses." Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2008/2181/.
Full textHallermann, Stefan. "Mechanismen hochfrequenter synaptischer Übertragung." Doctoral thesis, Universitätsbibliothek Leipzig, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-77329.
Full textKrenmayr, Jörg. "Freier Wille: eine reale Empfindung!? eine neurowissenschaftlich basierte, ganzheitliche und funktionalistische Konzeption des menschlichen Geistes und dessen Willen." Saarbrücken VDM Verlag Dr. Müller, 2006. http://d-nb.info/99148133X/04.
Full textBehrend, Olaf. "Sinnhafte Strukturen des Handelns und neurobiologische Prozesse des Sehens : zur soziologischen Bestimmung von Wahrnehmen als Handeln sowie zur Kritik der neurowissenschaftlichen Rede über Gehirn, Bewusstsein und visuelle Wahrnehmung /." Köln : Kölner Wiss.-Verl, 2008. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=017074833&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Full textBehrend, Olaf. "Sinnhafte Strukturen des Handelns und neurobiologische Prozesse des Sehens zur soziologischen Bestimmung von Wahrnehmen als Handeln sowie zur Kritik der neurowissenschaftlichen Rede über Gehirn, Bewusstsein und visuelle Wahrnehmung." Köln Kölner Wiss.-Verl, 2007. http://d-nb.info/991095782/04.
Full textLehr, Christine [Verfasser], Andreas [Akademischer Betreuer] Nehring, and Philipp [Gutachter] Balsiger. "Mönche im Labor - Rezeption des buddhistischen Achtsamkeitskonzepts in den Neurowissenschaften. Eine kulturhermeneutisch-diskursanalytische Betrachtung globaler Wechselwirkungen zwischen tibetischem Buddhismus und kognitiven Neurowissenschaften ausgehend vom Mind and Life Institute / Christine Lehr ; Gutachter: Philipp Balsiger ; Betreuer: Andreas Nehring." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2021. http://d-nb.info/1237499143/34.
Full textScheyda, Gerhard [Verfasser]. "Die theologische Lehre von der unsterblichen Seele vor dem Hintergrund der Diskussion in den Neurowissenschaften / Gerhard Scheyda." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2014. http://d-nb.info/105943203X/34.
Full textObholzer, Nikolaus. "Molecular components of the hair cell synaptic vesicle cycle." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:16-opus-79550.
Full textBürzele, Ralf D. [Verfasser], and Eilert [Akademischer Betreuer] Herms. "Erkenntnisansprüche der Neurowissenschaften und ihre Leistungsfähigkeit aus Perspektive der Theologie hinterfragt und interpretiert / Ralf D. Bürzele ; Betreuer: Eilert Herms." Tübingen : Universitätsbibliothek Tübingen, 2014. http://d-nb.info/1196802289/34.
Full textEichelbaum, Sebastian. "Applied Visualization in the Neurosciences and the Enhancement of Visualization through Computer Graphics." Doctoral thesis, Universitätsbibliothek Leipzig, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-157132.
Full textIn vielen Bereichen der Wissenschaft nimmt die Größe und Komplexität von gemessenen und simulierten Daten zu. Die technische Entwicklung erlaubt das Erfassen immer kleinerer Strukturen und komplexerer Sachverhalte. Um solche Daten dem Menschen zugänglich zu machen, benötigt man effiziente und spezialisierte Visualisierungswerkzeuge. Nur die Anpassung der Visualisierung auf ein Anwendungsgebiet und dessen Anforderungen erlaubt maximale Effizienz und Nutzen für den Anwender. Teil I: Im ersten Teil meiner Arbeit befasse ich mich mit der Visualisierung im Bereich der Neurowissenschaften. Ihr Ziel ist es, das menschliche Gehirn zu begreifen; von seinen kleinsten Teilen bis hin zu seiner Gesamtstruktur. Um dieses ehrgeizige Ziel zu erreichen nutzt die Neurowissenschaft vor allem kombinierte, dreidimensionale Daten aus vielzähligen Quellen, wie MRT, CT oder funktionalem MRT. Um mit dieser Vielfalt umgehen zu können, benötigt man in der Neurowissenschaft vor allem spezialisierte und evaluierte Visualisierungsmethoden. Zunächst stelle ich ein umfangreiches Softwareprojekt namens \"OpenWalnut\" vor. Es bildet die gemeinsame Basis für die Entwicklung und Nutzung von Visualisierungstechniken mit unseren neurowissenschaftlichen Kollaborationspartnern. Auf dieser Basis sind klassische und neu entwickelte Visualisierungen auch für Neurowissenschaftler zugänglich. Anschließend stelle ich ein spezialisiertes Visualisierungsverfahren vor, welches es ermöglicht, den kausalen Zusammenhang zwischen Gehirnarealen zu illustrieren. Das war vorher nur durch abstrakte Graphenmodelle möglich. Den ersten Teil der Arbeit schließe ich mit einer Evaluation verschiedener Standardmethoden unter dem Blickwinkel simulierter elektrischer Felder im Gehirn ab. Das Ziel dieser Evaluation war es, der neurowissenschaftlichen Gemeinde die Vor- und Nachteile bestimmter Techniken zu verdeutlichen und anhand klinisch relevanter Fälle zu erläutern. Teil II: Neben der eigentlichen Datenvorverarbeitung, welche in der Visualisierung eine enorme Rolle spielt, ist die grafische Darstellung essenziell für das Verständnis der Strukturen und Bestandteile in den Daten. Die grafische Repräsentation von Daten bildet die Schnittstelle zum Gehirn des Menschen. Der zweite Teile meiner Arbeit befasst sich mit der Verbesserung der strukturellen und räumlichen Wahrnehmung in Visualisierungsverfahren -- mit der Verbesserung der Schnittstelle. Leider werden viele visuelle Verbesserungen durch Computergrafikmethoden der Spieleindustrie mit Argwohn beäugt. Im zweiten Teil meiner Arbeit werde ich zeigen, dass solche Methoden in der Visualisierung angewendet werden können um den räumlichen Eindruck zu verbessern und Strukturen in den Daten hervorzuheben. Dazu nutze ich ein in der Computergrafik bekanntes Paradigma: das \"Screen Space Rendering\". Dieses Paradigma hat den Vorteil, dass es auf nahezu jede existierende Visualiserungsmethode als Nachbearbeitunsgschritt angewendet werden kann. Zunächst führe ich zwei Methoden ein, die die Wahrnehmung von gitterartigen Strukturen auf beliebigen Oberflächen verbessern. Diese Gitter repräsentieren die Struktur von Tensoren zweiter Ordnung und wurden durch eine Methode namens \"TensorMesh\" erzeugt. Anschließend zeige ich eine neuartige Technik für die optimale Schattierung von Linien und Punktdaten. Mit dieser Technik ist es erstmals möglich sowohl lokale Details als auch globale räumliche Zusammenhänge in dichten Linien- und Punktdaten zu erfassen
Mataruga, Anja [Verfasser]. "Licht- und elektronenmikroskopische Analyse von Bipolarzellen in der Mausretina / Forschungszentrum Jülich in der Helmholtz-Gemeinschaft, Institut für Neurowissenschaften und Biophysik, Zelluläre Biophysik (INB-1). Anja Mataruga." Jülich : Forschungszentrum, Zentralbibliothek, 2007. http://d-nb.info/987854747/34.
Full textPetzold, Antje. "Lateralized Head Turning Bias in Humans – Cues to the Development of Human Cerebral Asymmetries." Bachelor's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-24971.
Full textEichner, Cornelius. "Slice-Accelerated Magnetic Resonance Imaging." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-184944.
Full textZimmermann, Sandra A. C. [Verfasser], Paul W. [Akademischer Betreuer] Dierkes, Paul W. [Gutachter] Dierkes, and Andreas [Gutachter] Christian. "Schülerlabor Neurowissenschaften : ein biologiedidaktisches Forschungs- und Entwicklungsprojekt für die Oberstufe in einer außerschulischen Lernumgebung / Sandra A. C. Zimmermann ; Gutachter: Paul W. Dierkes, Andreas Christian ; Betreuer: Paul W. Dierkes." Frankfurt am Main : Universitätsbibliothek Johann Christian Senckenberg, 2019. http://d-nb.info/1202848095/34.
Full textRunehov, Anne L. C. "Sacred or neural? : The potential of neuroscience to explain religious experience /." Göttingen : Vandenhoeck & Ruprecht, 2007. http://www.gbv.de/dms/bs/toc/526941995.pdf.
Full textHilbert, Anja, and Ann-Christine Ehlis. "Neurowissenschaftlich fundierte Psychotherapie." Universitätsklinikum Leipzig, 2019. https://ul.qucosa.de/id/qucosa%3A35975.
Full textVetter, Nora C., Julius Steding, Sarah Jurk, Stephan Ripke, Eva Mennigen, and Michael N. Smolka. "Reliability in adolescent fMRI within two years – a comparison of three tasks." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-230621.
Full textLoaiza, Arias Juan Raúl. "Emotions as functional kinds." Doctoral thesis, Humboldt-Universität zu Berlin, 2020. http://dx.doi.org/10.18452/21976.
Full textIn this dissertation, I address the question of how to construct scientific theories of emotions that are both conceptually sound and empirically fruitful. To do this, I offer an analysis of the main challenges scientific theories of emotions face, and I propose a meta-theoretical framework to construct scientific concepts of emotions as explications of folk emotion concepts. Part I discusses the main challenges theories of emotions in psychology and neuroscience encounter. The first states that a proper scientific theory of emotions must explain all and only the phenomena under the vernacular term ‘emotion’ with a common set of conceptual resources and under an overarching generic concept of emotion. The second demands that each emotion category corresponds to well-coordinated sets of neural, physiological, and behavioral patterns of responses. I argue that none of the best contemporary theories of emotions in psychology and neuroscience overcomes these challenges. As a result, a new theory of emotions is required. In Part II, I develop the meta-theoretical framework to construct a theory of emotions that overcomes the challenges above. First, I propose a pluralistic account of scientific kinds based on different patterns of projection that various disciplines may take to justify inductive inferences. These are essentialist, historical, and social patterns. Each of these patterns provides a framework to construct different types of scientific concepts. I argue that among the frameworks for scientific kinds available, the one that is best suited to explicate emotion concepts is a functional framework. Consequently, I conclude by recommending scientists pursue functionalist theories of emotions over essentialist, historical, or social theories.
Stange, Klaus A. "Neuroscience and Homiletics in Dialogue: Perspectives for Preaching." Universität Leipzig, 2020. https://ul.qucosa.de/id/qucosa%3A72278.
Full textSantuz, Alessandro. "Extracting muscle synergies from human steady and unsteady locomotion: methods and experiments." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19351.
Full textThe need to move over uneven, continuously changing terrains is part of our daily life. Thus, the central nervous system must integrate an augmented amount of information in order to be able to cope with the unpredictability of external disturbances. A consequence of this increased demand might be a flexible recombination of the modular organisation of movement creation and control. At the expense of motion’s accuracy, it is possible that the system responds by increasing its control’s robustness (i.e. ability to cope with errors). However, the strategies employed by the central nervous system to organise movement are still poorly understood. One possibility is that movements are constructed through a small amount of linearly combined patterns of activations, called muscle synergies. Amongst the several possibilities of perturbing locomotion, the removal of footwear and the use of uneven surfaces are two valid options. In a first step, I conducted a thorough analysis of the methodologies useful for a) the evaluation of spatiotemporal gait parameters using plantar pressure distribution data and b) the extraction of muscle synergies using non-negative matrix factorisation. Afterwards, I analysed the modular organisation of c) shod and barefoot running and d) walking and running over an even- and an uneven-surface treadmill. The modular organisation of locomotion, assessed through the extraction of muscle synergies, changed when perturbations were introduced. Compared to the shod condition, barefoot running underwent, mostly due to the different foot strike pattern, a reorganisation of the time-independent coefficients (motor modules) and a time-shift of the time-dependent muscle activation patterns (motor primitives). Uneven-surface locomotion, compared to even-surface, conserved motor modules, while motor primitives were generally wider, confirming the idea of an increased robustness in motor control during unsteady locomotion.
Stange, Klaus A. "Neurociência e Homilética em diálogo: Perspectivas para a prédica." Universität Leipzig, 2020. https://ul.qucosa.de/id/qucosa%3A72277.
Full textWolff, Nicole, Veit Roessner, and Christian Beste. "Behavioral and neurophysiological evidence for increased cognitive flexibility in late childhood." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-220139.
Full textFischer, Johannes. "Tierexperimentelle Untersuchungen zu Stress, Zytokinen und depressionsähnlichem Verhalten." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-169143.
Full textSchmeltzer, Christian. "Dynamical properties of neuronal systems with complex network structure." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17470.
Full textAn important question in neuroscience is how the structure and dynamics of a neuronal network relate to each other. We approach this problem by modeling the spiking activity of large-scale neuronal networks that exhibit several complex network properties. Our main focus lies on the relevance of two particular attributes for the dynamics, namely structural heterogeneity and degree correlations. As a central result, we introduce a novel mean-field method that makes it possible to calculate the average activity of heterogeneous, degree-correlated neuronal networks without having to simulate each neuron explicitly. We find that the connectivity structure is sufficiently captured by a reduced matrix that contains only the coupling between the populations. With the mean-field method and numerical simulations we demonstrate that assortative degree correlations enhance the network’s ability to sustain activity for low external excitation, thus making it more sensitive to small input signals.
Letzien, Ulrike. "Effects of Carnosine and L-histidine on Viability and Expression of Pyruvate Dehydrogenase Kinase 4 in Human Glioblastoma Cells." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-197285.
Full textWirtssohn, Sarah Kaarina. "Stimulus- and context-dependent temporal filtering in the auditory pathway of the locust." Doctoral thesis, Humboldt-Universität zu Berlin, Lebenswissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17396.
Full textTemporal filtering of sensory input is crucial for the recognition of many sensory stimuli. Auditory neurons perform various computations and signal transformations to accomplish temporal filtering of acoustic input, comprising temporal integration, temporal resolution and temporal feature selection. To test whether temporal filtering processes within a neuron type depend on stimulus features, such as intensity, and on context, such as temperature, I conducted neurophysiological recordings from neurons in the auditory pathway of migratory locusts. First, I examined temporal integration in receptors and interneurons. The time course and extent of integration of subthreshold acoustic stimuli were neuronspecific. While peripheral sensory neurons acted as energy integrators, interneurons showed different temporal integration profiles, enabling neuron-specific temporal filtering. The analysis of postsynaptic potentials elucidated implemented mechanisms, suggesting that temporal integration is based on neuron-specific presynaptic and neuron-intrinsic computations. Second, I studied the response recovery of receptors and interneurons to the second stimulus in a stimulus pair, separated by a few milliseconds. This revealed the effect of acute, short-term adaptation and thus indicated the maximal temporal resolution of these neurons. In the sensory periphery response recovery was shaped by moderate adaptation and an exponential recovery. In many interneurons non-linear effects occurred, comprising a suppression of the response to the second stimulus and a response gain. Third, I tested the effect of temperature on temporal filtering. Temporal feature selectivity of interneurons was examined at cold and warm temperatures. With increasing temperature, the neurons preferred a temporally compressed feature. Temperature-dependent changes in temporal feature selectivity might thus contribute to temperature coupling of the sender and the receiver of the poikilothermic grasshoppers.
Heister, Hilmar. "The sympathetic imagination in the novels of J.M. Coetzee." Doctoral thesis, Humboldt-Universität zu Berlin, Kultur-, Sozial- und Bildungswissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17186.
Full textThe following study attempts a comprehensive evaluation of how the sympathetic imagination evolves in the works of J.M. Coetzee. The underlying assumption is that the way Coetzee employs his sympathetic imagination in his fiction enhances the reader’s empathetic capabilities. A starting point for the central categories of analysis and the close readings of his novels will be a brief exploration of the neuronal basis of empathy as discussed in the context of the discovery of and continuously extending research on mirror neurons as the neurological basis for empathy. Shared attention and perspective-taking constitute the focus of neuroscientific discussions of the connection between empathy and mirror neurons. A close look at Coetzee’s fiction will reveal comparable mechanisms in literary representation.
Wolff, Nicole, Veit Roessner, and Christian Beste. "Behavioral and neurophysiological evidence for increased cognitive flexibility in late childhood." Nature Publishing Group, 2016. https://tud.qucosa.de/id/qucosa%3A30196.
Full textKosciessa, Julian Q. "Measurement and relevance of rhythmic and aperiodic human brain dynamics." Doctoral thesis, Humboldt-Universität zu Berlin, 2020. http://dx.doi.org/10.18452/22040.
Full textNon-invasive signals recorded from the human scalp provide a window on the neural dynamics that shape perception, cognition and action. Historically motivating the assessment of large-scale network dynamics, rhythms are a ubiquitous sign of neural coordination, and a major signal of interest in the cognitive, systems, and computational neurosciences. However, typical descriptions of rhythmicity lack detail, e.g., failing to indicate when and for how long rhythms occur. Moreover, neural times series exhibit a wealth of dynamic patterns, only some of which appear rhythmic. While aperiodic contributions are traditionally relegated to the status of irrelevant ‘noise’, they may be informative of latent processing regimes in their own right. This cumulative dissertation summarizes and discusses work that (a) aims to methodologically dissociate rhythmic and aperiodic contributions to human electroencephalogram (EEG) signals, and (b) probes their relevance for flexible cognition. Specifically, Project 1 highlights the necessity, feasibility and limitations of dissociating rhythmic from aperiodic activity at the single-trial level. Project 2 inverts this perspective, and examines the utility of multi-scale entropy as an index for the irregularity of brain dynamics, with a focus on the relation to rhythmic and aperiodic descriptions. By highlighting prior biases and proposing solutions, this work indicates future directions for measurements of temporal irregularity. Finally, Project 3 examines the neurocognitive relevance of rhythmic and aperiodic regimes with regard to the neurophysiological context in which they may be engaged. Using a parallel multi-modal EEG-fMRI design with concurrent pupillometry, this project provides initial evidence that elevated demands shift cortical dynamics from a rhythmic to an irregular regime; and implicates concurrent phasic neuromodulation and subcortical thalamic engagement in these regime shifts.
Ekizos, Antonis. "Dynamic stability control and human energetics." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19545.
Full textMotor control strategies are chosen in a context dependent manner, based on different criteria. On the one hand stability in dynamic conditions such as locomotion, is crucial to uninterrupted task execution and requires effective regulation by the central nervous system. On the other, minimization of the energetic cost of transport is instrumental in choosing the locomotion strategy by the central nervous system. Both these concepts, (i.e. maintaining stability and optimization of energetic cost of locomotion) have a fundamental role on how and why humans move in the way they do. However, how the human central nervous system prioritizes between the different goals is unknown. In the last 20 years, ideas from scientific paradigms such as chaos theory and complex systems have given us novel tools to approach these questions. The current thesis examines the dynamic stability during human locomotion under such an approach using the concept of Lyapunov analysis. At first a methodological examination of the reliability of the maximum Lyapunov exponent in walking and running has been conducted (chapter 2). Afterwards, an examination between the habitual running condition and after removal of footwear was conducted, exhibiting a decrease in stability following the acute transition to the new condition (chapter 3). In the last study, a training intervention aiming at improvements in running energetics was performed using a short-term and a long-term intervention group (chapter 4). The results evidence that motor control errors can have a role in the energy cost of running and thus, a flexible prioritization of the motor control output.
Palm, Kerstin. "Gehirnforschung." Universitätsbibliothek Leipzig, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-220723.
Full textRossi, Sonja. "Neuroplasticity of word learning." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19420.
Full textWord learning accompanies our everyday life from infancy to advanced age. Infants have to learn the native language(s) but also during adulthood word learning can take place, for example if we learn a new foreign language. Sometimes people are confronted with a situation in which they have to re-learn a language because of a brain lesion. How does the brain master these challenging word learning settings? To assess neuroplasticity of word learning several neuroscientific methods (electroencephalography, functional near-infrared spectroscopy, voxel-based lesion-behavior/EEG mapping), partially in combination, were used in infants, children, and adults as well as in patients suffering from a brain lesion compared to matched elderly controls. In 5 experiments neuronal processing of pseudowords corresponding to native and non-native phonotactic rules (i.e., the combination of different phonemes) was investigated under different learning conditions in monolingual participants. Healthy adults but also 6-month-old infants and elderly subjects and patients were able to differentiate these rules. Involved brain areas included a left-hemispheric network of fronto-temporal regions. When processing universal linguistic features, however, more parietal regions were involved. While adults revealed a clear left-dominant network, 6-month-olds still recruited bilateral brain areas. Differential language trainings (semantic or passive listening trainings) over three consecutive days also modulated brain activation in both infants and adults suggesting a high flexibility for learning native and non-native linguistic regularities. In a 6th experiment, bilingual 5-year-old children learned novel adjectives by means of pragmatic cues and revealed more efficient neuronal mechanisms compared to monolingual children. Findings underline the importance of multi-methodological approaches to get clearer insights into the complex machinery of neuroplasticity.
Backes, Kathrin [Verfasser], and Heidrun [Akademischer Betreuer] Potschka. "Speziesauswahl in der Neurowissenschaft bei toxikologischen Studien : retrospektive Evaluierung der speziesspezifischen Sensitivität für neurologische Symptome beim Nichtnager / Kathrin Backes. Betreuer: Heidrun Potschka." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2016. http://d-nb.info/1088318193/34.
Full textPalm, Kerstin. "Gehirnforschung." Humboldt-Universität, 2015. https://ul.qucosa.de/id/qucosa%3A15414.
Full textVorbeck, Maria Magdalena [Verfasser], and Thomas [Akademischer Betreuer] Schenk. "Spiegelneurone – ein Konzept aus der Neurowissenschaft : wie ein Konzept aus einem Wissenschaftsbereich Konzepte verwandter Wissenschaftsbereiche beeinflusst, jedoch Änderungen am ursprünglichen Konzept nur verzögert, teilweise oder gar nicht übernommen werden / Maria Magdalena Vorbeck ; Betreuer: Thomas Schenk." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2021. http://d-nb.info/1239557213/34.
Full textEbbesen, Christian Laut. "Cortical circuits underlying social and spatial exploration in rats." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19231.
Full textIn order to understand how the mammalian brain works, we must investigate how neural activity contributes to cognition and generates complex behavioral output. In this thesis I present work, which focuses on two regions of the cerebral cortex of rats: parahippocampal cortex and motor cortex. In the first part of the thesis we investigate neural circuits in the parasubiculum and the superficial medial enthorhinal cortex, two structures that play a key role in spatial cognition. Briefly, we find that the in these regions, anatomical identity and microcircuit embedding is a major determinant of both spatial discharge patterns (such as the discharge patterns of grid cells, border cells and head-direction cells) and temporal coding features (such as spike bursts, theta-modulation and phase precession). In the second part of the thesis we investigate the activity of neurons in vibrissa motor cortex during complex motor behaviors, which play a vital role in rat ecology: self-initiated bouts of exploratory whisking in air, whisking to touch conspecifics during social interactions and whisking to palpate objects. Briefly, we find that neural activity decreases during whisking behaviors, that microstimulation leads to whisker retraction and that pharmacological blockade increases whisker movement. Thus, our observations collectively suggest that a primary role of vibrissa motor cortex activity is to suppress whisking behaviors. The second part of the thesis concludes with a literature review of motor suppressive effects of motor cortical activity across rodents, primates and humans to put this unexpected finding in a broader context.
Wild-Wall, Nele. "Is there an interaction between facial expression and facial familiarity?" Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2004. http://dx.doi.org/10.18452/15042.
Full textContrasting traditional face recognition models previous research has revealed that the recognition of facial expressions and familiarity may not be independent. This dissertation attempts to localize this interaction within the information processing system by means of performance data and event-related potentials. Part I elucidated upon the question of whether there is an interaction between facial familiarity and the discrimination of facial expression. Participants had to discriminate two expressions which were displayed on familiar and unfamiliar faces. The discrimination was faster and less error prone for personally familiar faces displaying happiness. Results revealed a shorter peak latency for the P300 component (trend), reflecting stimulus categorization time, and for the onset of the lateralized readiness potential (S-LRP), reflecting the duration of pre-motor processes. A facilitation of perceptual stimulus categotization for personally familiar faces displaying happiness is suggested. The discrimination of expressions was not facilitated in further experiments using famous or experimentally familiarized, and unfamiliar faces. Part II raises the question of whether there is an interaction between facial expression and the discrimination of facial familiarity. In this task a facilitation was only observable for personally familiar faces displaying a neutral or happy expression, but not for experimentally familiarized, or unfamiliar faces. Event-related potentials reveal a shorter S-LRP interval for personally familiar faces, hence, suggesting a facilitated response selection stage. In summary, the results suggest that an interaction of facial familiarity and facial expression might be possible under some circumstances. Finally, the results are discussed in the context of possible interpretations, previous results, and face recognition models.