Dissertations / Theses on the topic 'Arbeitsgedächtnis'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Arbeitsgedächtnis.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Werner, Ines. "Phonologisches Arbeitsgedächtnis bei dysgrammatisch-sprachgestörten Kindern." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-26465.
Full textHilbert, Sven. "Entwicklung und Diagnostik von Arbeitsgedächtnis und Inhibition." Diss., lmu, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-152491.
Full textPloner, Christoph Johannes. "Okulomotorische Studien zum räumlichen Arbeitsgedächtnis des Menschen." Doctoral thesis, Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité, 2001. http://dx.doi.org/10.18452/13771.
Full textThis publication summarizes a series of experimental studies examining spatial working memory, the "visuospatial scratch pad", in humans. This short-term memory system is frequently affected in disorders involving the frontal cortex and connected subcortical structures, e.g. in Parkinson's disease, Alzheimer's disease or schizophrenia. Healthy human subjects and patients with focal cerebral lesions were tested with a series of "memory-guided saccade" paradigms, i.e. oculomotor spatial memory tasks. We examined both behavioural aspects and possible anatomical substrates of spatial working memory and more stable "long-term" memory systems. Our aim was to clarify the relationship between behavioural measures of spatial memory and its neuronal substrates. In a first experiment, we were able to show that visuospatial working memory selectively represents behaviourally relevant information. Access of irrelevant visuospatial information to working memory appears to be prevented by efficient attentional filters. Facing the limited storage capacity of spatial working memory, these filters may allow for successful behaviour in perceptually complex environments. Furthermore, the tight coupling of spatial attention and spatial working memory allows for the conclusion, that spatial working memory deficits in patients may likewise result from deficient storage systems and deficient attentional control. In a second experiment, we were able to demonstrate a clear temporal limit of about 20 seconds for spatial working memory. Beyond this temporal limit, an independent and more stable spatial memory system, less susceptible to the passage of time, becomes behaviourally relevant. Thus, the term "working memory" should be confined to spatial memory tasks where the memory delay does not exceed 20 seconds. In addition, these results show that selection of a certain memory delay in a given spatial memory task is a decisive factor when examining spatial memory systems. A third series of lesion studies in patients and neurophysiological experiments in healthy subjects confirmed that cortical control of spatial working memory involves dorsolateral prefrontal cortex, posterior parietal cortex and frontal eye field. Within this network, the dorsolateral prefrontal cortex and posterior parietal cortex appear to store spatial information in perceptual coordinates, with a transient role of the posterior parietal cortex at the very beginning of the memory delay and a dominating role of the dorsolateral prefrontal cortex for most of the delay. By contrast, the frontal eye field appears to store spatial information in oculomotor coordinates, i.e. to maintain a prepared eye movement to a remembered target location across a delay. A fourth series of lesion studies in patients showed that spatial memory for delays longer than 20 seconds is controlled by anatomical substrates distinct from those controlling spatial working memory. Beyond the temporal limits of spatial working memory, neocortical regions of the medial temporal lobe appear to contribute significantly to spatial memory. Within these neocortical regions, the parahippocampal cortex may carry spatial memory functions independent of the hippocampal formation and distinct from spatial working memory. We propose that this region is the neuronal substrate of an intermediate memory system, linking spatial working memory and spatial long-term memory both functionally and anatomically. Moreover, these results show that selection of a certain memory delay in a given spatial memory task is a decisive factor when examining neuronal substrates of spatial memory. Taken together, our experiments show that human memory can effectively be investigated with simple physiological paradigms. Spatial memory functions can precisely be quantified with oculomotor paradigms and related to defined anatomical substrates. This approach may allow for precise diagnosis of cognitive deficits and efficient monitoring of treatment of memory disorders.
Röttger, Christian [Verfasser], and Volker [Akademischer Betreuer] Arolt. "Arbeitsgedächtnis und Emotion / Christian Röttger ; Betreuer: Volker Arolt." Münster : Universitäts- und Landesbibliothek Münster, 2015. http://d-nb.info/1138279560/34.
Full textSchwager, Sabine. "Selektion beim Zugriff auf mentale Objekte im Arbeitsgedächtnis." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2006. http://dx.doi.org/10.18452/15464.
Full textThe dissertation aims at identifying component processes of access to "mental objects" from verbal working memory and characterizing the involved memory codes. In one of the current working memory models it is assumed that the object actually selected for processing is in the focus of attention and can be subjected to any upcoming mental operation while the remaining candidates are maintained within the "region of direct access". When the focus is moved to a new object this results in time costs since it requires the selection of a new object from the set (Oberauer, 2002). This task-independent view of working memory access has to be extended: The mental object in focus is usually selected for a certain (not any) operation while feature information of objects outside the focus of attention is subject to decay. Maintenance of objects currently not selected objects is probably realized by subvocal rehearsal that provides phonological codes of the objects - being the basis of a new object selection. Consequently, when switching mental objects there is not only object selection necessary but also feature retrieval and feature selection processes within the object that provide the task-relevant object information. Four Experiments were conducted. They consisted of sequences of comparisons using randomly changing elements from a memory set of one-digit numbers or monosyllabic german nouns. Object switching costs are higher when the memory set contains phonologically similar elements (object selection) and when the task requires semantic rather than superficial information (feature retrieval). There are costs for changing the relevant features within an object (feature selection) but not with an object switch that always includes the selection of new object features. The results strongly support the view of task-dependent selection processes in working memory.
Rahm, Benjamin [Verfasser]. "Neuronale Korrelate des Abrufs aus dem visuellen Arbeitsgedächtnis / Benjamin Rahm." Mainz : Universitätsbibliothek Mainz, 2016. http://d-nb.info/1111810001/34.
Full textRichter, Sven [Verfasser]. "Arbeitsgedächtnis und Ruheperfusion - eine Continuous Arterial Spin Labeling Studie / Sven Richter." Ulm : Universität Ulm. Medizinische Fakultät, 2013. http://d-nb.info/1037395107/34.
Full textFinke, Carsten. "Okulomotorische Untersuchungen zur Modulation visueller Aufmerksamkeit durch räumliches Arbeitsgedächtnis beim Menschen." Doctoral thesis, Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité, 2006. http://dx.doi.org/10.18452/15387.
Full textVoluntary behavior critically depends on attentional selection and short-term maintenance of perceptual information. Recent research suggests a tight coupling of both cognitive functions with visual processing being selectively enhanced by working memory representations. Here, a memoryguided saccade paradigm (6-s delay) was combined with a visual discrimination task, performed either 1,500, 2,500, or 3,500 ms after presentation of the memory cue. Contrary to what can be expected from previous studies, the results show that memory of spatial cues can transiently delay speeded discrimination of stimuli presented at remembered locations. This effect was not observed in a control experiment without memory requirements. Furthermore, delayed discrimination was dependent on the strength of actual memory representations as reflected by accuracy of memory-guided saccades. The spatial distribution of the observed discrimination inhibition showed a center-surround-organization reminiscent of activation patterns of local neuronal networks in prefrontal and visual cortex. An active inhibitory mechanism is proposed that counteracts facilitating effects of spatial working memory, promoting flexible orienting to novel information during maintenance of spatial memoranda for intended actions. Inhibitory delay-period activity in prefrontal cortex is a likely source for this mechanism which may be mediated by prefronto-tectal projections.
Hilbert, Sven [Verfasser], and Markus [Akademischer Betreuer] Bühner. "Entwicklung und Diagnostik von Arbeitsgedächtnis und Inhibition / Sven Hilbert. Betreuer: Markus Bühner." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2013. http://d-nb.info/1031630937/34.
Full textRauscher, Yvonne [Verfasser], and Thomas [Akademischer Betreuer] Haarmaier. "Altersabhängigkeit visueller Wahrnehmungsleistungen : Bistabile Perzeption und Arbeitsgedächtnis / Yvonne Rauscher ; Betreuer: Thomas Haarmaier." Tübingen : Universitätsbibliothek Tübingen, 2017. http://d-nb.info/1167248147/34.
Full textHilbert, Sven Lars [Verfasser], and Markus [Akademischer Betreuer] Bühner. "Entwicklung und Diagnostik von Arbeitsgedächtnis und Inhibition / Sven Hilbert. Betreuer: Markus Bühner." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-152491.
Full textMüller, Lukas Benedikt [Verfasser]. "Quantitative Metaanalyse zur zerebralen, arbeitsgedächtnis–bezogenen Aktivierung bei Schizophrenie / Lukas Benedikt Müller." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2017. http://d-nb.info/1127045415/34.
Full textNeuser, Kirsa [Verfasser]. "Neuronale Netzwerke des Zentralkomplexes und ein räumliches Arbeitsgedächtnis von Drosophila melanogaster / Kirsa Neuser." Mainz : Universitätsbibliothek Mainz, 2012. http://d-nb.info/1032025301/34.
Full textFukuda, Yu [Verfasser]. "Eine Studie zur effektiven Konnektivität im Arbeitsgedächtnis-Netzwerk bei subklinischer Wahnerfahrung / Yu Fukuda." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2021. http://d-nb.info/1241538557/34.
Full textBroutschek, Beatrix [Verfasser], Bernd [Akademischer Betreuer] Leplow, and Josef [Akademischer Betreuer] Lukas. "Räumliches Arbeitsgedächtnis und Strategiebildung bei Morbus Parkinson / Beatrix Broutschek. Betreuer: Bernd Leplow ; Josef Lukas." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2010. http://d-nb.info/1025011260/34.
Full textFürstenberg, Anne [Verfasser], Ralf [Akademischer Betreuer] Rummer, and Gerhard [Akademischer Betreuer] Blanken. "Buchstaben im Arbeitsgedächtnis : Sind Repräsentationen von Schrift visuell? / Anne Fürstenberg. Gutachter: Ralf Rummer ; Gerhard Blanken." Erfurt : Universitätsbibliothek Erfurt, 2013. http://d-nb.info/1043957707/34.
Full textHoffmann, Isabell [Verfasser]. "Der Einfluss von Humaninsulin auf das Arbeitsgedächtnis bei Typ 2 Diabetikern : fMRT-Studie / Isabell Hoffmann." Lübeck : Zentrale Hochschulbibliothek Lübeck, 2013. http://d-nb.info/1037261127/34.
Full textFürstenberg, Anne Verfasser], Ralf [Akademischer Betreuer] [Rummer, and Gerhard [Akademischer Betreuer] Blanken. "Buchstaben im Arbeitsgedächtnis : Sind Repräsentationen von Schrift visuell? / Anne Fürstenberg. Gutachter: Ralf Rummer ; Gerhard Blanken." Erfurt : Universitätsbibliothek Erfurt, 2013. http://nbn-resolving.de/urn:nbn:de:gbv:547-201300458.
Full textPloner, Christoph Johannes [Verfasser], Karl [Gutachter] Zilles, and Wolfgang [Gutachter] Heide. "Okulomotorische Studien zum räumlichen Arbeitsgedächtnis des Menschen / Christoph Johannes Ploner ; Gutachter: Karl Zilles, Wolfgang Heide." Berlin : Humboldt-Universität zu Berlin, 2001. http://d-nb.info/1207657050/34.
Full textRopeter, Anna [Verfasser], and Sabina [Akademischer Betreuer] Pauen. "Das Arbeitsgedächtnis im Säuglingsalter. Zusammenhänge mit Informationsverarbeitungsfähigkeiten und dem frühkindlichen Temperament / Anna Ropeter ; Betreuer: Sabina Pauen." Heidelberg : Universitätsbibliothek Heidelberg, 2011. http://d-nb.info/1179229479/34.
Full textDeserno, Lorenz [Verfasser]. "Schizophrenie und kognitive Defizite : eine funktionell-modellbasierte Bildgebungsstudie zum Arbeitsgedächtnis und zur flexiblen Verhaltensanpassung / Lorenz Deserno." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2014. http://d-nb.info/1058105051/34.
Full textYildiz-Erzberger, Kathrin [Verfasser], Jochen [Akademischer Betreuer] Kaiser, and Josef [Akademischer Betreuer] Unterreiner. "Neuronale Korrelate der Wiedererkennung im visuellen Arbeitsgedächtnis : eine MEG-Studie / Kathrin Erzberger. Gutachter: Jochen Kaiser ; Josef Unterreiner." Frankfurt am Main : Univ.-Bibliothek Frankfurt am Main, 2011. http://d-nb.info/1044195010/34.
Full textBretscher, Franziska [Verfasser], and Andreas J. [Akademischer Betreuer] Fallgatter. "Präfrontale Aktivierung während einer Aufgabe zum Arbeitsgedächtnis bei Kindern mit ADHS / Franziska Bretscher. Betreuer: Andreas J. Fallgatter." Würzburg : Universitätsbibliothek der Universität Würzburg, 2011. http://d-nb.info/1017232946/34.
Full textJunker, Martina. "Der verflixte Akkusativ : Altersunterschiede und Altersinvarianz beim Verstehen von Sätzen mit unterschiedlich komplexer syntaktischer Struktur." Phd thesis, Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2005/378/.
Full textIn this paper several experiments about age differences in comprehension of sentences with different syntactical structure are reported. The main focus is on the difficulties old adults experience when a sentence starts with an object. Can the age differences be explained by differences in working memory capacity? Have old adults less working memory capacity, or does there exist a separate working memory for syntactic information which declines with age? In an age simulation, young adults working memory capacity was reduced by an additional digit load. Age differences in comprehension of syntactical complex sentences were compared with age differences in sentences with less complex syntactical structure. To change their experience with the rare object initial word order participants were trained with object initial sentences.
Röer, Jan Philipp Verfasser], Axel [Akademischer Betreuer] [Buchner, and Martin [Akademischer Betreuer] Heil. "Der Einfluss unerwarteter Distraktorwiederholungen auf den Irrelevant Sound-Effekt im Arbeitsgedächtnis / Jan Philipp Röer. Gutachter: Axel Buchner ; Martin Heil." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2011. http://d-nb.info/101545870X/34.
Full textFuge, Philipp [Verfasser]. "Untersuchung der Effekte von Early Life Stress, Alter und Genotyp auf das Arbeitsgedächtnis unter Nutzung des EmoCogMeters / Philipp Fuge." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2016. http://d-nb.info/1113592621/34.
Full textTandler, Frithjof [Verfasser], and Andreas [Akademischer Betreuer] Engel. "Der semantische Abgleich von visuellen und auditorischen Reizen im Arbeitsgedächtnis : eine multisensorische Elektroenzephalographie-Studie / Frithjof Tandler. Betreuer: Andreas Engel." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2011. http://d-nb.info/1020458283/34.
Full textGlöckner, Stefan [Verfasser], Andreas [Gutachter] Reif, and Marcel [Gutachter] Romanos. "Impulsivität und Arbeitsgedächtnis bei Patienten mit bipolarer affektiver Störung in unterschiedlichen Krankheitsepisoden / Stefan Glöckner ; Gutachter: Andreas Reif, Marcel Romanos." Würzburg : Universität Würzburg, 2020. http://d-nb.info/1215500963/34.
Full textSchmid, Inga Verfasser], Dietmar [Akademischer Betreuer] Grube, Marcus [Akademischer Betreuer] [Hasselhorn, and Claudia [Akademischer Betreuer] Mähler. "Arbeitsgedächtnis und Schulleistungen in Mathematik und Schriftsprache bei älteren Grundschülern / Inga Schmid. Gutachter: Marcus Hasselhorn ; Claudia Mähler. Betreuer: Dietmar Grube." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2011. http://d-nb.info/1042641587/34.
Full textWilsch, Anna. "Neural oscillations in auditory working memory." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-177313.
Full textMichalczyk, Kurt [Verfasser], Marcus [Akademischer Betreuer] Hasselhorn, and Kristin [Akademischer Betreuer] Krajewski. "Arbeitsgedächtnis bei Kindern : Altersinvarianz der Struktur und Bedeutung für die Entwicklung früher numerischer Kompetenzen / Kurt Michalczyk. Gutachter: Marcus Hasselhorn ; Kristin Krajewski." Frankfurt am Main : Univ.-Bibliothek Frankfurt am Main, 2012. http://d-nb.info/1044772492/34.
Full textBüttner, Claudia Sophia [Verfasser], and Caroline [Akademischer Betreuer] Jung-Sievers. "Assoziation von Polymorphismen im COMT-Gen mit der Schizophrenie und dem Arbeitsgedächtnis als Endophänotyp / Claudia Sophia Büttner. Betreuer: Caroline Jung-Sievers." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2016. http://d-nb.info/1106854578/34.
Full textWorgt, Maria Verfasser], Marcus [Akademischer Betreuer] [Hasselhorn, and Gerhard [Akademischer Betreuer] Büttner. "Das Arbeitsgedächtnis bei Sprachauffälligkeiten infolge von Migrationshintergrund oder "Late Talker"-Diagnose / Maria Worgt. Gutachter: Marcus Hasselhorn ; Gerhard Büttner. Betreuer: Marcus Hasselhorn." Frankfurt am Main : Univ.-Bibliothek Frankfurt am Main, 2015. http://d-nb.info/1076082351/34.
Full textWorgt, Maria [Verfasser], Marcus [Akademischer Betreuer] Hasselhorn, and Gerhard [Akademischer Betreuer] Büttner. "Das Arbeitsgedächtnis bei Sprachauffälligkeiten infolge von Migrationshintergrund oder "Late Talker"-Diagnose / Maria Worgt. Gutachter: Marcus Hasselhorn ; Gerhard Büttner. Betreuer: Marcus Hasselhorn." Frankfurt am Main : Univ.-Bibliothek Frankfurt am Main, 2015. http://d-nb.info/1076082351/34.
Full textLübke, Jan [Verfasser], Kirsten [Akademischer Betreuer] Jordan, Jürgen L. [Akademischer Betreuer] Müller, Peter [Akademischer Betreuer] Dechent, and Martin [Akademischer Betreuer] Oppermann. "Das verbale Arbeitsgedächtnis - Gedächtniseffekte, kortikale Kurzzeitplastizität und Strategieunterschiede / Jan Lübke. Gutachter: Jürgen L. Müller ; Peter Dechent ; Martin Oppermann. Betreuer: Kirsten Jordan." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2011. http://d-nb.info/1044051191/34.
Full textFinke, Carsten [Verfasser], C. J. [Gutachter] Ploner, Chr [Gutachter] Helmchen, and T. [Gutachter] Lempert. "Okulomotorische Untersuchungen zur Modulation visueller Aufmerksamkeit durch räumliches Arbeitsgedächtnis beim Menschen / Carsten Finke ; Gutachter: C. J. Ploner, Chr. Helmchen, T. Lempert." Berlin : Humboldt-Universität zu Berlin, 2006. http://d-nb.info/1208079883/34.
Full textGendt, Anja. "Eye movements under the control of working memory : the challenge of a reading-span task." Phd thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2014/6922/.
Full textBeim Lesen steuern okulomotorische Prozesse die Blickbewegungen über den Text. Die aufgenommenen visuellen Informationen werden erschlossen, beurteilt und verarbeitet. Erst durch den Abruf der Wortbedeutung aus dem Langzeitgedächtnis, und die Verknüpfung sowie Speicherung der einzelnen Wortinformationen erschließt sich die semantische Bedeutung eines Satzes. Somit stellt das Gedächtnis und hier insbesondere das Arbeitsgedächtnis eines der grundlegenden Prozesse für das Lesen dar. Die vorliegende Dissertation untersucht inwieweit sich unterschiedliche Gedächtnisanforderungen und Gedächtniskapazitäten auf das Blickverhalten während des Lesens auswirken. Für die experimentelle Überprüfung der Forschungsfragen wurde das in der Arbeitsgedächtnisforschung sehr häufig genutzte Paradigma der Lesespannenaufgabe verwendet, bei dem Probanden einzelne Sätze lesen und beurteilen. Die Ergebnisse sprechen für einen direkten Einfluss von Arbeitsgedächtnisprozessen auf verschiedene Blickbewegungsmaße. So reduzierte eine hohe Arbeitsgedächtnisbelastung beispielsweise die perzeptuelle Spanne während des Lesens. Je geringer die individuelle Arbeitsgedächtniskapazität des Lesers war, desto stärker war der Einfluss der Arbeitsgedächtnisbelastung auf die Satzverarbeitung.
Klaus, Jana. "Speech production and working memory: The influence of cognitive load on sentence planning." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-161307.
Full textReinecke, Andrea. "Spatial and temporal processing biases in visual working memory in specific anxiety." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2007. http://nbn-resolving.de/urn:nbn:de:swb:14-1176379796267-73402.
Full textZeintl, Melanie, and Matthias Kliegel. "Proactive and Coactive Interference in Age-Related Performance in a Recognition-Based Operation Span Task." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-134877.
Full textDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich
Seydack, Maren [Verfasser], and Christoph [Akademischer Betreuer] Klein. "Statistischer Zusammenhang zwischen Aufmerksamkeitsdefizits- / Hyperaktivitätsstörung-Symptomatik und intra-individueller Variabilität verglichen mit Defiziten im Arbeitsgedächtnis in einer ADHS-Stichprobe und Kontrollgruppe gesunder Probanden." Freiburg : Universität, 2019. http://d-nb.info/1200352599/34.
Full textKaminski, Jakob. "Stimulationsintensitäten in kognitiven Paradigmen." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-189290.
Full textFriedel, Eva [Verfasser]. "Genetische und pharmakologische Einflüsse auf die Verarbeitung affektiver Informationen und das Arbeitsgedächtnis : drei funktionelle MRT-Studien an drei klinischen Populationen und Gesunden / Eva Friedel." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2012. http://d-nb.info/1028495331/34.
Full textLehnert, Ina [Verfasser], Matthias [Akademischer Betreuer] Nagel, and Achim [Gutachter] Peters. "Das Arbeitsgedächtnis bei Patienten mit Typ 2 Diabetes mellitus im Vergleich zu Normalprobanden : fMRT-Studie / Ina Lehnert ; Gutachter: Achim Peters ; Akademischer Betreuer: Matthias Nagel." Lübeck : Zentrale Hochschulbibliothek Lübeck, 2020. http://d-nb.info/1208739654/34.
Full textVockenberg, Kerstin. "Updating of representations in working memory." Phd thesis, kostenfrei, 2006. http://opus.kobv.de/ubp/volltexte/2007/1176/.
Full textWalther, Julia-Caroline [Verfasser], and Martin [Akademischer Betreuer] Bohus. "Implizite und explizite Emotionsregulation bei Patientinnen mit Borderline-Persönlichkeitsstörung: Wirksamkeit eines Emotionalen Arbeitsgedächtnis-Trainings in einer randomisiert-kontrollierten Studie / Julia-Caroline Walther ; Betreuer: Martin Bohus." Heidelberg : Universitätsbibliothek Heidelberg, 2019. http://d-nb.info/118803183X/34.
Full textTäschner, Anna Sophie [Verfasser]. "Lässt sich der Erfolg eines Gedächtnistrainings bei Älteren durch hirnstrukturelle Parameter (MRT) und die Performanz in den Domänen exekutive Funktionen und Arbeitsgedächtnis voraussagen? / Anna Sophie Täschner." Mainz : Universitätsbibliothek Mainz, 2020. http://d-nb.info/1212961099/34.
Full textZeintl, Melanie, and Matthias Kliegel. "Proactive and Coactive Interference in Age-Related Performance in a Recognition-Based Operation Span Task." Karger, 2010. https://tud.qucosa.de/id/qucosa%3A27600.
Full textDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Schreppel, Theresa. "Der Einfluss von Aufmerksamkeit und Interferenzkontrolle auf die Verarbeitung visueller Stimuli." Doctoral thesis, kostenfrei, 2008. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-32496.
Full textThe aim of the present work was to investigate, to what extend the neural processing of visual stimuli could be modulated by processes of attention and working memory and which top down processes control this modulation. Two competing explanatory models were proved in the present work. On the one hand it is possible that selective attention comprise two qualitatively different mechanisms, the focussing on relevant information and the active inhibition of irrelevant stimuli. On the other hand it is possible that the limited processing capacities lead to an automatic disregard of irrelevant stimuli when focussing on relevant information. According to this, there would be only one mechanism. In a first experiment alertness was investigated with near-infrared spectroscopy (NIRS) as a basic process of attention. In a two step design relevant areas for alertness over the fronto-temporal cortex were defined first. Alertness related activity was found in the middle and superior temporal cortex of the right hemisphere and in the ventral part of the inferior frontal cortex of the left hemisphere. The analyses of a second measurement for these specific regions revealed a significantly increased activation for alertness in contrast to a visual and a motor control condition. The aim of a second experiment was to replicate existing electroencephalographic (EEG) results of the modulation of the neural processing of visual stimuli with a new developed paradigm, a modified version of the n-back task. As expected there was a higher processing of relevant stimuli in comparison to a perceptual control condition. The processing of irrelevant stimuli was not suppressed. Explorative, there was an analogue result of the modulation of attention over frontal electrodes. In a third experiment the modified n-back paradigm was adjusted to the standards of NIRS measurements to capture frontal effects of attentional modulation more immediate than with EEG. As expected both attended and ignored stimuli were associated with activation of frontal structures. Relevant stimuli were linked with a bilateral activation of the dorsolateral prefrontal cortex (DL-PFC) and activation from the left inferior frontal cortex to the pre- and postcentral cortex. Irrelevant stimuli were linked with a distributed activation of the right PFC. An involvement of the left frontal gyrus could not be verified. The comparison of the two activation patterns revealed no significant difference, the basic processes of working memory and interference control led to an activation of highly overlapping brain regions. The results of the experiments 2 and 3 revealed no evidence of an active process of interference control. Therefore, the 1-back task was replaced by a more difficult 2-back task in experiment 4. Due to the higher working memory load, there should be a stronger effort and therefore a stronger frontal activation during interference inhibition. This hypothesis was proved with a frontal NIRS measurement (experiment 4a). As expected, the higher working memory load led to a stronger activation of the PFC in respect of the relevant stimuli. Concerning irrelevant stimuli, there was no frontal activation. EEG data that were collected simultaneously showed no difference between the processing of attended and ignored faces. In comparison to that the processing of passively viewed faces was decreased. The second part of this study examined occipital effects of attentional modulation with NIRS for the first time. In line with the results of the first EEG study (experiment 2) there was an enhanced processing of relevant, but no decreased processing of ignored stimuli. In sum, the absent active inhibition of distractors in the occipital cortex and the similar neural correlates of processes of working memory and interference inhibition in the frontal cortex argue for the hypothesis of one uniform mechanism of focussing attention without an active and independent mechanism of interference inhibition
Salminen, Tiina. "On the cognitive and neuronal effects and mechanisms of working memory training." Doctoral thesis, Humboldt-Universität zu Berlin, Lebenswissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17487.
Full textWorking memory (WM) is a cognitive function that is engaged in several everyday tasks. WM performance predicts performance in diverse other cognitive functions. Additionally, WM decline at old age is associated with age-related impairments in others cognitive functions, thus affecting autonomous performance of everyday tasks. It has been shown that WM can be improved with training interventions, and evidence has accumulated showing that also other cognitive functions can profit from WM training. The transfer findings indicate that WM training might enclose a mechanism to improve cognitive functions in general. Even though there exists a growing body of evidence on the possibilities to improve cognitive functions with WM training in different populations, the exact mechanisms of training and transfer have remained unclear. In the current dissertation I examine the prospects and precise mechanisms of WM training with four studies using the bi-modal dual n-back paradigm. I showed that dual n-back training improved performance in various tests tapping executive functions. I could also demonstrate that the mechanisms underlying transfer result from an improvement in a specific process tapped by the training task rather than in the boosting of a general cognitive ability. Consequently, transfer can occur to tasks if they engage the same specific process. Additionally, I provided primary evidence that only 16 sessions of WM training produces microstructural changes in white matter pathways connecting brain regions that support WM functions. I also showed for the first time that age-related differences in WM performance between young and older adults can be compensated for after only 16 training sessions. The findings of the present dissertation are discussed in relation to the flexibility of cognitive functions and the plasticity of the underlying neuronal substrate; additionally, new conceptions to models of training and transfer mechanisms are presented.