Frequency estimation in verbal learning

A multicopy theory of frequency estimation and discrimination is applied to some data found in the literature on verbal learning. The main theoretical assumption adopted is that ‘relevant’ copies generated during study have to be discriminated from ‘irrelevant’ copies as are available in memory from other occasions than the study session proper. At retrieval, copies of either type are added and their sum determines the frequency estimates that are actually reported. A formalization of these ideas is presented and applied to Hinztman's (1969) and Underwood, Zimmerman, and Freund's (1971) data. Two specific models that emphasize either storage or retrieval of copy information are studied. The results show that the models provide a close approximation to the frequency discrimination data. With absolute frequency estimation, both the means and standard deviations of the judgements are predicted reasonably well. However, some reservations were dictated by the fact that, in one instance, the tails of the judgement distributions were not accounted for. The theory offers a theoretical framework for Underwood et al.'s method of cross-relating absolute frequency and forced choice judgements; the usefulness of two approaches to this problem is established. Also, possible extensions of the theory are noted.     

The Study of Religions in the Third Reich: A Report on Work in Progress

Translator's Note. Possible connections between the study of religions and European fascism, if not indeed Nazism, have sparked considerable discussion and debate in the English-speaking world. Consider the celebrated cases of Mircea Eliade and Georges Dumézil.By contrast, the work of German scholars of religion during the NS period has been relatively little studied. Still, there have been exceptions. Burkhard Gladigow of Tübingen has published ‘Naturwissenschaftliche Modellvorstellungen in der Religionswissenschaft in der Zeit zwischen den Weltkriegen’.¹Recently, the study of religions during the Third Reich has become the subject of an ongoing seminar at Philipps-Universität Marburg. To date, one student has declared his intentions to write a thesis on the topic. Rainer Flasche, who convenes the seminar, has also worked on the topic extensively. The following essay is a preliminary indication of his results.Flasche, born in Hannover in 1942, studied theology, philosophy, German, and the history of religions in Marburg. He has taught history of religions there since 1971, making his habilitation in 1975. His best known work isDie Religionswissenschaft Joachim Wachs(Berlin: de Gruyter, 1978).Readers may wish especially to note what emerges as the central principle of Nazi religio-historical hermeneutics: that only those who belong to a race (gender? class?) can understand it. Thus, only Germans can understand Germanic religion. The essay may also shed some light on the study of religions in Germany after the war. A reviewer of a recent book by Isaiah Berlin has noted how Berlin's lasting confidence in the liberal tradition perhaps derives from the usefulness of that tradition in Eastern Europe, where Berlin spent his formative years. In post-war Germany, the study of religions has emphasized a positivism that remains close to the sources and shuns explicit theorizing, an emphasis in which Flasche clearly concurs. The usefulness of this strategy should not be overlooked. It allowed German scholars of the NS period, but also later under communist rule in the Democratic Republic and to some extent within the confines of state-run theology programs in the Federal Republic, to work independently of and even oppose a sanctioned ideology. The strategy was not to champion competing theories but to oppose ideological claims with ‘facts’. This stance contrasts sharply with the theoretical richness that characterized German thought about religions before 1933, but—once burned, twice cautious.A note on terminology. The development of the nation-state took markedly different courses in the German and English speaking worlds. As a result, the wordVolkand the adjectivevölkischhave no entirely satisfactory English equivalents. The connotations of ‘nation’ are too limited, because the GermanVolkwas an ideal that transcended not only the principalities that dominated German political life from 1648 to 1866 but also the remnants of German glory that remained after World War I and even the extensive empire administered by Prussia from 1866 to 1918. Therefore, I have translatedVolkas ‘people’. But English ‘popular’ has quite a different sense fromVölkisch, so forvölkischI have used the adjective ‘national’ instead. Readers should keep in mind the direct verbal link between the two in the original.     

Unemployment, Social Capital, and Subjective Well-Being

It has been shown in past research that unemployment has a large negative impact on subjective well-being of individuals. In this paper, I explore whether and to what extent people with more social capital are sheltered from the harmful effects of unemployment. Using data from the German Socio-Economic Panel 1984–2004, I find that social capital is an important predictor of well-being levels, but there is no evidence that it moderates the effect of unemployment on well-being. Possible reasons for these findings are discussed, and suggestions for future research given. This paper was written while I was visiting scholar at the W.E. Upjohn Institute for Employment Research in Kalamazoo, MI. I am grateful to the Institute for its hospitality, to Andrew Clark, Andrew Oswald and three anonymous referees for valuable comments, and to the German Socio Economic Panel Study (GSOEP) at the German Institute for Economic Research (DIW), Berlin, for providing the data.     

Nichtspezifische,funktionelle und somatoforme Körperbeschwerden

In the S3 guidelines on non-specific, functional and somatoform bodily complaints, a broad group of medical and psychological societies as well as patient representatives have for the first time achieved an evidence-based consensus on terminology and care of these patients. This paper summarizes the main background information and recommendations for psychotherapists. For mild courses treatment by the general practitioner with establishment of a biopsychosocial explanatory model and physical as well as social activation is usually sufficient. More severe courses call for cooperative, coordinated management, including regular appointments with the general practitioner, graded activation and psychotherapy, especially cognitive behavioral, in addition to psychodynamic interpersonal or hypnotherapeutic imaginative psychotherapy. In particularly severe courses multimodal and if necessary day clinic or inpatient treatment is needed. Additionally the patient guidelines for affected people and their relatives are presented.     

Spatial navigation in complex and radial mazes in APP23 animals and neurotrophin signaling as a biological marker of early impairment

Impairment of hippocampal function precedes frontal and parietal cortex impairment in human Alzheimer's disease (AD). Neurotrophins are critical for behavioral performance and neuronal survival in AD. We used complex and radial mazes to assess spatial orientation and learning in wild-type and B6-Tg(ThylAPP)23Sdz (APP23) animals, a transgenic mouse model of AD. We also assessed brain content of nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), and neurotrophin-3 (NT-3). Performance was alike in wild-type and APP23 animals in the radial maze. In contrast, performance in the complex maze was better in wild-type than APP23 animals. Contrary to the wild-type, hippocampal BDNF levels decreased on training in APP23 animals. Hippocampal and frontal cortex NGF levels in APP23 animals correlated with the time to solve the complex maze, but correlated inversely with escape time in wild-type animals. NT-3 levels were alike in wild-type and APP23 animals and were unchanged even after training. Both types of mazes depend on hippocampal integrity to some extent. However, according to the cognitive mapping theory of spatial learning, the complex maze because of the increased complexity of the environment most likely depends more strongly on preserved hippocampal function than the radial maze in the working memory configuration applied here. Greater impairment in complex maze performance than in radial maze performance thus resembles the predominant affliction of the loss of hippocampal function in human AD. NGF and BDNF levels on maze learning are different in wild-type and transgenic animals, indicating that biological markers of AD may be altered on challenge even though equilibrium levels are alike.     

Task preparation and stimulus-evoked competition

The authors investigated how task competition evoked by a stimulus that affords both a currently relevant and a temporarily irrelevant task is affected by invalid preparation, i.e., preparation for the irrelevant task. Although invalid preparation was associated with a general performance cost, effects of stimulus-cued task competition were not enhanced on invalidly prepared trials. This result suggests that either preparation activates representations different from the ones by which stimulus cuing is mediated or that stimulus processing is postponed until invalid preparation has been corrected. In addition, invalid preparation resulted in impaired performance of the respective task when it became relevant on a subsequent trial. This result is consistent with the idea that competition due to invalid preparation is countered by task-specific inhibition.     

Thin slices of behavior as cues of personality and intelligence

Self-reports, peer reports, intelligence tests, and ratings of personality and intelligence from 15 videotaped episodes were collected for 600 participants. The average cross-situational consistency of trait impressions across the 15 episodes was .43. Shared stereotypes related to gender and age were mostly accurate and contributed little to agreement among judges. Agreement was limited mainly by nonshared meaning systems and by nonoverlapping information. Personality inferences from thin slices of behavior were significantly associated with reports by knowledgeable informants. This association became stronger when more episodes were included, but gains in prediction were low beyond 6 episodes. Inferences of intelligence from thin slices of behavior strongly predicted intelligence test scores. A particularly strong single predictor was how persons read short sentences.     

Sociability and positive emotionality: genetic and environmental contributions to the covariation between different facets of extraversion

The relation between sociability and positive affect is one of the most often replicated results of research on personality and subjective well-being. It is shown how behavior genetics can contribute to our understanding of the covariance between sociability and positive emotionality. The results of a multimethod behavior-genetic study with 158 monozygotic and 120 dizygotic twins are reported. In this study, sociability and two components of positive emotionality (positive affect, energy) were assessed by self-report and other report. Additionally, positive state affect was assessed in five situations and aggregated across situations. The results showed that there are strong genetic correlations between all variables. Furthermore, there are substantive correlations between the nonshared environmental components of the different variables. Shared environmental influences, however, seemed to be unimportant for explaining the correlations between sociability and the different components of positive emotionality. The results are discussed with respect to their implications for future research on sociability and positive emotionality.