1,721,469 research outputs found
Was führt sie zu mir ...? Die Bedeutung des narrativen Spontanberichtes in der Klassischen Homöopathie
No full textVisual features of an observed agent do not modulate human brain activity during action observation
Full text linkRecent neuroimaging evidence in macaques has shown that the neural system underlying the observation of hand actions performed by others (i.e., "action observation system") is modulated by whether the observed action is performed by a person in full view or an isolated hand (i.e., type of view manipulation). Although a human homologue of such circuit has been identified, whether in humans the neural processes involved in this capacity are modulated by the type of view remains unknown. Here we used functional magnetic resonance imaging (fMRI) to investigate whether the "action observation system", with specific reference to the ventral premotor cortex, responds differentially depending on type of view. We also tested this manipulation within regions of the human brain showing overlapping activity for both the observation and the execution of action ("mirror" regions). To this end, the same subjects were requested to observe grasping actions performed under the two types of view (observation conditions) or to perform a grasping action (execution condition). Results from whole-brain analyses indicate that overlapping activity for action observation and execution was evident in a broad network of areas including parietal, premotor and temporal cortices. Activity within such network was evident for both the observation of a person in full view or an isolated hand, but it was not modulated by the type of view. Similarly, results from region of interest (ROI) analyses, performed within the ventral premotor cortex, did confirm that this area responded in a similar fashion following the observation of either an isolated hand or an entire model acting. These findings offer novel insights on what the "action observation" and the "mirror" systems visually code and how the processing underlying such coding may vary across species. Further, they support the hypothesis that action goal is amongst the main determinants for the revelation of action observation activity, and to the existence of a broad system involved in the simulation of action
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Narrative Medizin in Praxis und Forschung: (Un-)Ausgesprochenes zwischen Patient nd Arzt
No full textNarrative Medizin - Erzählende Medizin. Komplementäre Medizin im interdisziplinären Diskurs
No full textVariations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Visual features of an observed agent do not modulate human brain activity during action observation
No full textRecent neuroimaging evidence in macaques has shown that the neural system
underlying the observation of hand actions performed by others (i.e., "action
observation system") is modulated by whether the observed action is performed by
a person in full view or an isolated hand (i.e., type of view manipulation).
Although a human homologue of such circuit has been identified, whether in humans
the neural processes involved in this capacity are modulated by the type of view
remains unknown. Here we used functional magnetic resonance imaging (fMRI) to
investigate whether the "action observation system", with specific reference to
the ventral premotor cortex, responds differentially depending on type of view.
We also tested this manipulation within regions of the human brain showing
overlapping activity for both the observation and the execution of action
("mirror" regions). To this end, the same subjects were requested to observe
grasping actions performed under the two types of view (observation conditions)
or to perform a grasping action (execution condition). Results from whole-brain
analyses indicate that overlapping activity for action observation and execution
was evident in a broad network of areas including parietal, premotor and temporal
cortices. Activity within such network was evident for both the observation of a
person in full view or an isolated hand, but it was not modulated by the type of
view. Similarly, results from region of interest (ROI) analyses, performed within
the ventral premotor cortex, did confirm that this area responded in a similar
fashion following the observation of either an isolated hand or an entire model
acting. These findings offer novel insights on what the "action observation" and
the "mirror" systems visually code and how the processing underlying such coding
may vary across species. Further, they support the hypothesis that action goal is
amongst the main determinants for the revelation of action observation activity,
and to the existence of a broad system involved in the simulation of action
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