Recently cognitive principles have been discussed for Conceptual Modeling with the aim to increase domain understanding, model comprehension and modeling efficiency. In particular, the principle of Perceptual Discriminability, which discusses the visual differences of modeling constructs, reveals potential for model comprehension if human attention is influenced in a way that important modeling constructs are more easily detected, and can hence faster be processed. Yet, so far no conditions how the human gaze can be influenced have been defined and evaluated for Conceptual Modeling. This dissertation extends Perceptual Discriminability for conditions to attract human attention for those constructs that are important for model comprehension. Furthermore, these conditions are applied to constructs of two different modeling grammars in general as well as to elements of the process flow of Business Process Models. To evaluate the results a laboratory experiment of extended Perceptual Discriminability is described in which significant differences have been identified for process flow comprehension. For the demonstration of the potential of extended Perceptual Discriminability BPMN secondary notation is improved by emphasizing those constructs that are most important for model comprehension. Therefore, those constructs that are important for model comprehension have been identified within a content analysis and have been worked on according to the conditions of extended Perceptual Discriminability for those visual variables that are free for an application in secondary notation.

Abstract This study demonstrates the various facets of mediality in post-1945 German-language literature, using as examples seven works of prose by Nicolas Born, Ingeborg Bachmann, Peter Handke, Bodo Morshäuser, Uwe Johnson, Heinrich Böll and Martin Walser. The thesis is divided into two major sections: a theoretical section and a text-oriented research section. In the theoretical section, a positioning of media and literature is carried out in the context of history and the history of literature. Starting from the relationship between fiction and reality, a distinction is made between generative and classical mediality. In the research section, mediality in literature is analyzed under the following three thematic criteria: “attention”, “distance” and “reality”; each criterion is addressed using two works of prose as examples. The relatedness of these criteria is analyzed on the basis of the seventh book. This study reveals the diversity of the layers of mediality in the literature of the era and places the individual works of prose in an over-all literary context. / Abstract Die Untersuchung zeigt am Beispiel von sieben Prosawerken von Nicolas Born, Ingeborg Bachmann, Peter Handke, Bodo Morshäuser, Uwe Johnson, Heinrich Böll und Martin Walser verschiedene Facetten von Medialität in der deutschsprachigen Literatur nach 1945. Die Arbeit gliedert sich in einen theoretischen und einen textbezogenen Teil. Im theoretischen Teil wird eine Positionierung von Medien und Literatur in einem historischen und literaturgeschichtlichen Kontext vorgenommen. Ausgehend von der Fiktionsfrage wird eine Unterscheidung zwischen generativer und klassischer Medialität vorgenommen. Im textbezogenen Teil wird die Frage nach der Medialität in der Literatur unter den drei thematischen Schwerpunkten „Aufmerksamkeit”, „Distanz” und „Wirklichkeit” abgehandelt, wobei jeweils zwei Prosawerke zur Geltung gebracht werden. Die Bezüge zwischen diesen Schwerpunkten werden an einem siebten Prosawerk untersucht. Die Untersuchung zeigt die Vielfalt der Medialitätsschichten in der Literatur der Zeit und gestattet eine Positionierung der einzelnen Werke im gesamtliterarischen Kontext. / Tiivistelmä Tutkimus osoittaa mediaalisuuden erilaiset mahdollisuudet seitsemän proosateoksen avulla vuoden 1945 jälkeisessä saksankielisessä kirjallisuudessa. Tutkimus jakaantuu teoreettiseen ja proosakirjallisuutta tutkivaan osaan. Teoriaosassa mediat ja kirjallisuus sijoitetaan historian ja kirjallisuudenhistorian kontekstiin. Lähtökohtana on kysymys fiktion ja todellisuuden välisestä suhteesta, ja tässä yhteydessä tehdään ero generatiivisen ja klassisen mediaalisuuden välillä. Teoksiin keskittyvässä osassa kirjallisuuden mediaalisuutta tutkitaan kolmen temaattisen aspektin kautta: tarkkaavaisuus, distanssi ja todellisuus, joita tutkitaan aina kahden teoksen avulla. Näiden aspektien välisiä suhteita tarkastellaan sitten seitsemännessä proosateoksessa. Tutkimus osoittaa mediaalisuuden tasojen moninaisuuden aikamme kirjallisuudessa ja auttaa yksittäisten teosten sijoittamisessa kirjallisuuden koko kontekstiin.

Appropriate reactions toward emotional stimuli depend on the distribution of prefrontal attentional resources. In mid-adolescence, prefrontal top-down control systems are less engaged, while subcortical bottom-up emotional systems are more engaged. We used functional magnetic resonance imaging to follow the neural development of attentional distribution, i.e. attending versus ignoring emotional stimuli, in adolescence. 144 healthy adolescents were studied longitudinally at age 14 and 16 while performing a perceptual discrimination task. Participants viewed two pairs of stimuli – one emotional, one abstract – and reported on one pair whether the items were the same or different, while ignoring the other pair. Hence, two experimental conditions were created: 'attending emotion/ignoring abstract' and 'ignoring emotion/attending abstract'. Emotional valence varied between negative, positive, and neutral. Across conditions, reaction times and error rates decreased and activation in the anterior cingulate and inferior frontal gyrus increased from age 14 to 16. In contrast, subcortical regions showed no developmental effect. Activation of the anterior insula increased across ages for attending positive and ignoring negative emotions. Results suggest an ongoing development of prefrontal top-down resources elicited by emotional attention from age 14 to 16 while activity of subcortical regions representing bottom-up processing remains stable.

It is far from conclusive what distinguishes the inattentive (ADD) and the combined (ADHD-C) subtype of ADHD on the neuronal level. Theoretical considerations suggest that especially interval timing processes may dissociate these subtypes from each other. Combining high-density EEG recordings with source localization analyses, we examine whether there are ADHD-subtype specific modulations of neurophysiological processes subserving interval timing in matched groups of ADD (n = 16), ADHD-C (n = 16) and controls (n = 16). Patients with ADD and ADHD-C show deficits in interval timing, which was correlated with the degree of inattention in ADD patients. Compared to healthy controls, patients with ADHD-C display a somewhat weaker, yet consistent response preparation process (contingent negative variation, CNV). In patients with ADD, the early CNV is interrupted, indicating an oscillatory disruption of the interval timing process. This is associated with activations in the supplemental motor areas and the middle frontal gyrus. Patients with ADD display adequate feedback learning mechanisms (feedback-related negativity, FRN), which is not the case in patients with ADHD-C. The results suggest that altered pacemaker-accumulation processes in medial frontal structures distinguish the ADD from the ADHD-C subtype. Particularly in patients with ADD phasic interruptions of preparatory neurophysiological processes are evident, making this a possible diagnostic feature.

Background. Seasonal allergic rhinitis (SAR) is a chronic disease affecting about 23% of the European population with increasing prevalence rates. Beside classical symptoms (i.e. sneezing, nasal congestion), patients frequently complain about subjective impairments in cognitive functioning during periods of acute allergic inflammation. However, objective evidence for such deficits or the role of potential modulators and underlying mechanisms is limited. The present study aimed to investigate the effect of SAR on attention-related cognitive processes. In addition, relationships between attention performance, sleep and mood disturbances as well as specific disease characteristics as potential modulators of this link were explored. Method. SAR patients (n = 41) and non-allergic healthy controls (n = 42) completed a set of attention tasks during a symptomatic allergy period and during a non-symptomatic period. Influences of sleep, mood, total immunoglobulin E (IgE) levels and individual allergy characteristics on cognitive performance were evaluated. Results. Compared to healthy controls, SAR patients had a slower processing speed during both symptomatic and nonsymptomatic allergy periods. Additionally, they showed a more flexible adjustment in attention control, which may serve as a compensatory strategy. Reduction in processing speed was positively associated with total IgE levels whereas flexible adjustment of attention was linked with anxious mood. No association was found between SAR-related attention deficits and allergy characteristics or sleep. Conclusions. SAR represents a state that is crucially linked to impairments in information processing and changes in attentional control adjustments. These cognitive alterations are more likely to be influenced by mood and basal inflammatory processes than sleep impairments or subjective symptom severity.

Background: Based on the assumptions that depersonalization symptoms are relevant for test anxiety maintenance, we examined their frequency, psychological predictors, association with anxiety symptoms, and association with test performance. Sampling and Methods: In Study 1, 203 students rated their test anxiety severity and depersonalization in their last oral examination. In Study 2, we assessed test anxiety 1 week before an oral examination, depersonalization, safety behaviors, self-focused attention, and negative appraisals of depersonalization directly after the examination, and post-event processing 1 week later among 67 students. Results: In Study 1, 47.3% reported at least one moderate depersonalization symptom. In Study 2, test anxiety and negative appraisals of depersonalization significantly predicted depersonalization. Depersonalization was linked to a higher intensity of safety behaviors and post-event processing but not to self-focused attention. It was not related to performance. Conclusion: Results are limited by the non-random sampling and the small sample size of Study 2. However, by showing that depersonalization contributes to the processes the maintenance of test anxiety, the findings confirm that depersonalization – normally understood as an adaptive mechanism to cope with stressful events – can become maladaptive.

No description available.

Research documented the effectiveness of obesity surgery (OS) for long-term weight loss and improvements in medical and psychosocial sequelae, and general cognitive functioning. However, there is only preliminary evidence for changes in attentional processing of food cues after OS. This study longitudinally investigated visual attention towards food cues from pre- to 1-year post-surgery. Using eye tracking (ET) and a Visual Search Task (VST), attentional processing of food versus non-food cues was assessed in n = 32 patients with OS and n = 31 matched controls without weight-loss treatment at baseline and 1-year follow-up. Associations with experimentally assessed impulsivity and eating disorder psychopathology and the predictive value of changes in visual attention towards food cues for weight loss and eating behaviors were determined. During ET, both groups showed significant gaze duration biases to non-food cues without differences and changes over time. No attentional biases over group and time were found by the VST. Correlations between attentional data and clinical variables were sparse and not robust over time. Changes in visual attention did not predict weight loss and eating disorder psychopathology after OS. The present study provides support for a top-down regulation of visual attention to non-food cues in individuals with severe obesity. No changes in attentional processing of food cues were detected 1-year post-surgery. Further studies are needed with comparable methodology and longer follow-ups to clarify the role of biased visual attention towards food cues for long-term weight outcomes and eating behaviors after OS.

Arbeitsgedächtnisdefizite lernbehinderter Kinder sind bisher vor allem im phonologischen Bereich nachgewiesen worden. Die eigene Studie untersucht mögliche Defizite im Bereich der zentralen Exekutive mit zwei Schwerpunkten: (a) Lassen sich bei der Steuerung selektiver Aufmerksamkeit spezifische Defizite Lernbehinderter identifizieren? (b) Zeigen sich Besonderheiten in den Alterszugewinnen selektiver Aufmerksamkeit? In der Untersuchung wurden Grundschulkinder gleichen mentalen und gleichen chronologischen Alters mit einer Gruppe lernbehinderter Kinder einer vierten Klasse verglichen. Zusätzlich wurden ältere Schulkinder (7. Klasse, 4. Klasse, 7. Klasse einer Sonderschule L) einbezogen, so dass auch prüfbar wird, inwiefern sich Alterszugewinne der kognitiven Funktionen bei lernbehinderten im Vergleich zu unauffälligen Schülern unterscheiden. Einbezogen wurden nur L-Schüler mit einem IQ < 85. Zur Erfassung der zentral-exekutiven selektiven Aufmerksamkeit wurden drei verschiedene Aufgabenanforderungen (TAP, Stopp-Signal, TEZEK) gewählt. Die Befunde deuten auf ein frühes Funktionsdefizit der lernbehinderten Kinder hin, das bis 14 Jahre weitgehend kompensiert werden kann.

The primary aim of the present thesis was to investigate how the human brain handles and distributes limited processing resources among different sensory modalities. Two main hypothesis have been conventionally proposed: (1) common processing resources shared among sensory modalities (supra-modal attentional system) or (2) independent processing resources for each sensory modality. By means of four EEG experiments, we tested whether putative competitive interactions between sensory modalities – regardless of attentional influences – are present in early sensory areas. We observed no competitive interactions between sensory modalities, supporting independent processing resources in early sensory areas. Consequently, we tested the influence of top-down attention on a cross-modal dual task. We found evidence for shared attentional resources between visual and tactile modalities. Taken together, our results point toward a hybrid model of inter-modal attention. Attentional processing resources seem to be controlled by a supra-modal attentional system, however, in early sensory areas, the absence of competitive interactions strongly reduces interferences between sensory modalities, thus providing a strong processing resource independence.