27 research outputs found

    Editorial

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    Wir freuen uns, Ihnen die mittlerweile 17. Ausgabe des HDS.Journals vorlegen zu können. Erstmalig finden Sie in diesem Journal Praxisbeiträge zum Forschenden Lehren im Kontext der Fachwissenschaft, insbesondere zur Beforschung der eigenen Lehre. Der zugrundeliegende Ansatz des „Scholarship of Teaching and Learning“ (SoTL) hat sich mittlerweile in der angloamerikanischen und europäischen Hochschulbildung etabliert. Es bleibt weiterhin spannend zu beobachten, wie sich die forschende Haltung zur eigenen Lehre auf innovative Lehr- und Lernformen, neue Curricula und auf die Bildungsforschung in der deutschen Hochschulszene auswirkt

    Disfluent Lengthening in Spontaneous Speech

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    Betz S, Wagner P. Disfluent Lengthening in Spontaneous Speech. In: Jokisch O, ed. Elektronische Sprachsignalverarbeitung (ESSV) 2016. Studientexte zur Sprachkommunikation. Dresden: TUD Press; 2016

    Are we all disfluent in our own special way and should dialogue systems also be?

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    Betz S, Lopez Gambino MS. Are we all disfluent in our own special way and should dialogue systems also be? In: Jokisch O, ed. Elektronische Sprachsignalverarbeitung (ESSV) 2016. Studientexte zur Sprachkommunikation. Vol 81. Dresden: TUD Press; 2016: 168-174

    Effects of attention and perceptual uncertainty on cerebellar activity during visual motion perception

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    Recent clinical and neuroimaging studies have revealed that the human cerebellum plays a role in visual motion perception, but the nature of its contribution to this function is not understood. Some reports suggest that the cerebellum might facilitate motion perception by aiding attentive tracking of visual objects. Others have identified a particular role for the cerebellum in discriminating motion signals in perceptually uncertain conditions. Here, we used functional magnetic resonance imaging to determine the degree to which cerebellar involvement in visual motion perception can be explained by a role in sustained attentive tracking of moving stimuli in contrast to a role in visual motion discrimination. While holding the visual displays constant, we manipulated attention by having participants attend covertly to a field of random-dot motion or a colored spot at fixation. Perceptual uncertainty was manipulated by varying the percentage of signal dots contained within the random-dot arrays. We found that attention to motion under high perceptual uncertainty was associated with strong activity in left cerebellar lobules VI and VII. By contrast, attending to motion under low perceptual uncertainty did not cause differential activation in the cerebellum. We found no evidence to support the suggestion that the cerebellum is involved in simple attentive tracking of salient moving objects. Instead, our results indicate that specific subregions of the cerebellum are involved in facilitating the detection and discrimination of task-relevant moving objects under conditions of high perceptual uncertainty. We conclude that the cerebellum aids motion perception under conditions of high perceptual demand

    Consensus Paper: The Role of the Cerebellum in Perceptual Processes

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    Editorial

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    Wir freuen uns, Ihnen die mittlerweile 17. Ausgabe des HDS.Journals vorlegen zu können. Erstmalig finden Sie in diesem Journal Praxisbeiträge zum Forschenden Lehren im Kontext der Fachwissenschaft, insbesondere zur Beforschung der eigenen Lehre. Der zugrundeliegende Ansatz des „Scholarship of Teaching and Learning“ (SoTL) hat sich mittlerweile in der angloamerikanischen und europäischen Hochschulbildung etabliert. Es bleibt weiterhin spannend zu beobachten, wie sich die forschende Haltung zur eigenen Lehre auf innovative Lehr- und Lernformen, neue Curricula und auf die Bildungsforschung in der deutschen Hochschulszene auswirkt

    Editorial

    No full text
    Wir freuen uns, Ihnen die mittlerweile 17. Ausgabe des HDS.Journals vorlegen zu können. Erstmalig finden Sie in diesem Journal Praxisbeiträge zum Forschenden Lehren im Kontext der Fachwissenschaft, insbesondere zur Beforschung der eigenen Lehre. Der zugrundeliegende Ansatz des „Scholarship of Teaching and Learning“ (SoTL) hat sich mittlerweile in der angloamerikanischen und europäischen Hochschulbildung etabliert. Es bleibt weiterhin spannend zu beobachten, wie sich die forschende Haltung zur eigenen Lehre auf innovative Lehr- und Lernformen, neue Curricula und auf die Bildungsforschung in der deutschen Hochschulszene auswirkt

    Evolutionary optimization of an adaptive prosody model

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    The perceived quality of synthetic speech strongly depends on its prosodic naturalness. Concerning the control of duration and fundamental frequency in a speech synthesis system, sophisticated models have been developed during the last decade. Departing from the syllable-based, adaptive prosody model IGM the authors surveyed a novel evolutionary approach to optimize the model structure itself and to finally improve the predicted prosodic contours. Therefore, a German newsreader corpus has been trained using a feed forward neural network. In parallel, network and data configurations were automatically optimized using the Strength Pareto Evolutionary Algorithm (SPEA). Achieving similar prediction results as in the original IGM configuration, the evolutionary optimization reduces the network complexity, in particular, the number of necessary input parameters from 24 to less than 10 by eliminating redundancies. This optimization method may be helpful in the further development of resource-saving prosody modules, e.g., for use in embedded text-to-speech applications and it also eases the difficult introspection of prosodic rules which are automatically generated during the training. Nevertheless, preliminary perceptive tests show no significant differences in comparison to synthetic stimuli based on prosodic contours predicted by the original model. 1
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