Sind die klassische Mechanik und die spezielle Relativitätstheorie kommensurabel?

In its first part, this paper shows why a recently made attempt to reduce the special theory of relativity to Newtonian kinematics is bound to fail. In the second part, we propose a differentiated notion of incommensurability which enables us to amend the contention that the special theory of relatively and Newtonian kinematics are incommensurable.     

Carnap und der Physikalismus

Ohne Zusammenfassung     

Die historisch-hermeneutischen Disziplinen im System der Wissenschaften

Gegen einheitswissenschaftliche Nivellierung sind Grundlagen-, Natur- und Kulturwissenschaften zu unterscheiden (weniger als Unterschied von Gegenständen als von Fragestellungen und Vorgehensweisen). Zu den Kulturwissenschaften gehören die historisch-hermeneutischen Disziplinen, und zwar als handlungsverstehende Wissenschaften unter erschwerten Bedingungen. Die Geschichtswissenschaft soll die verborgenen Gründe und Zwecke vergangener Handlungen aufklären, die Textwissenschaften in Form problematischer Texte vorliegende Sprachhandlungen. Texte können in verschiedener Hinsicht problematisch sein: für ein Verstehensinteresse an begründeten Behauptungen oder an subjektiver Bekundung (in selbstdarstellender oder motivierender Absicht). Entsprechend ist hier methodisch zwischen apophantischer und ästhetischer Texthermeneutik zu unterscheiden. Ziel aller historisch-hermeneutischen Fächer sollte kritische Gegenwartsorientierung sein.     

Struggle for scientific authority: The reception of Watson's Behaviorism, 1913–1920

Supported by the Zeitgeist, Behaviorism supposedly spread quickly through American psychology after the publication of Watson's manifesto in 1913. But an extensive search of published and unpublished source material from 1913 to 1920 shows only limited support and a good deal of resistance; documentary evidence for the conversion of psychologists to radical behaviorism during these years is hard to find. Though faced with some troubling problems, the discipline was not eager to renounce its established scientific authority and expertise on the mind. Acceptance of Watson's claims for a new authority required drastic shifts in psychologists' perception of reality, and in their interests to problems of social control.     

Grasping visual illusions: no evidence for a dissociation between perception and action

Neuropsychological studies prompted the theory that the primate visual system might be organized into two parallel pathways, one for conscious perception and one for guiding action. Supporting evidence in healthy subjects seemed to come from a dissociation in visual illusions: In previous studies, the Ebbinghaus (or Titchener) illusion deceived perceptual judgments of size, but only marginally influenced the size estimates used in grasping. Contrary to those results, the findings from the present study show that there is no difference in the sizes of the perceptual and grasp illusions if the perceptual and grasping tasks are appropriately matched. We show that the differences found previously can be accounted for by a hitherto unknown, nonadditive effect in the illusion. We conclude that the illusion does not provide evidence for the existence of two distinct pathways for perception and action in the visual system.     

Tinnitus als soziale Infektion?

Background

11 out of 35 male employees of a central alert team with rescue coordination function developed a tinnitus disorder. This clinical case-study highlights the psychodynamic background of this accumulation.

Methods

Employees were investigated by psychometric questionnaires and semistructured psychodynamic biografical interviews. Additionally aspects of group dynamics and organisational structure were assessed.

Results

All staff members reported adverse work conditions. Medical and psychometric examination of the tinnitus patients did not reveal severe pathological findings. The interviews identified psychodynamic conflicts dealing with autonomy and regulation of self-esteem. All tinnitus patients reported a very adverse or punitive father relation and difficulties in performing a stabile male role and self-image. Group dynamics was dominated by paranoid and regressive tendencies complicated by maladaptive coping, crude perception of external facts and a pronounced experience of aggressive impulses.

Conclusion

The remobilisation of infantile powerlessness, ineffectiveness and helplessness triggered by adverse work conditions and the introduction of a new culture of personal responsibility within the work organisation together with an impaired coping of separation conflicts enforced by traumatic aspects of the relation with the father may have promoted the tinnitus symptomatology. Additionally, due to the missing awareness of the importance of such group dynamical processes the employers contributed to an increasing psychosocial distress, which promoted the accumulated manifestation of tinnitus as a conflict expressive symptom.     

Do muscles matter for coordinated action?

This article investigates coordination stability when 2 fingers of each hand periodically tap together. The main question concerns the functional origin of the symmetry tendency, which has widely been conceived as a bias toward coactivation of homologous fingers and homologous muscular portions. In Experiment 1, the symmetry tendency was independent of finger combination. In Experiment 2, virtually identical stability characteristics were revealed under full vision and no vision. In Experiment 3, symmetrical and parallel visual labels on the fingers neither stabilized nor destabilized symmetrical and parallel tapping patterns. In Experiment 4, in which the relative position of the hands was varied, it revealed that the observed stability characteristics are to be defined in a hand-centered reference frame. Because the symmetry tendency was always independent of finger combination, the authors suggest that it is not a bias toward coactivation of homologous muscle portions but instead originates on a more abstract, functional level.