Observations on regional cerebral blood flow in cortical and subcortical structures during language production in normal man

Regional cerebral blood flow (rCBF) was studied by single photon emission computerized tomography (SPECT) of inhaled xenon-133 in six normal volunteers during various language, articulatory, and control conditions. Language production increased rCBF in predominantly left-sided cortical and subcortical areas. The involved regions were anatomically related to a left frontal area (Broca's), to both caudate nuclei, to a left thalamic/pallidal area, and bilaterally in retrorolandic areas. The failure to demonstrate lateralized retrorolandic activity is thought to reflect the complexity of the tasks.     

Using the World-Wide Web to obtain large-scale word norms: 190,212 ratings on a set of 2,654 German nouns

This article presents a new database of 2,654 German nouns rated by a sample of 3,907 subjects on three psycholinguistic attributes: concreteness, valence, and arousal. As a new means of data collection in the field of psycholinguistic research, all ratings were obtained via the Internet, using a tailored Web application. Analysis of the obtained word norms showed good agreement with two existing norm sets. A cluster analysis revealed a plausible set of four classes of nouns: abstract concepts, aversive events, pleasant activities, and physical objects. In an additional application example, we demonstrate the usefulness of the database for creating parallel word lists whose elements match as closely as possible. The complete database is available for free from ftp://ftp.uni-duesseldorf.de/ pub/psycho/lahl/WWN. Moreover, the Web application used for data collection is inherently capable of collecting word norms in any language and is going to be released for public use as well.     

Decomposability of the Finitely Generated Free Hoop Residuation Algebra

In this paper we prove that, for n > 1, the n-generated free algebra in any locally finite subvariety of HoRA can be written in a unique nontrivial way as Ł₂ × A′, where A′ is a directly indecomposable algebra in . More precisely, we prove that the unique nontrivial pair of factor congruences of is given by the filters and , where the element is recursively defined from the term introduced by W. H. Cornish. As an additional result we obtain a characterization of minimal irreducible filters of in terms of its coatoms. Presented by Daniele Mundici     

Unerwünschte und schädliche Wirkungen von Psychotherapie

Unwanted effects or even damage due to psychotherapy are largely neglected issues within psychotherapy research as compared to other fields. On the other hand, it is reasonable to assume that unwanted effects of a treatment which intends to influence patients into a positive direction are very likely. The rate of negative effects of psychotherapy (the deterioration effect according to Bergin) is consistently estimated to be 10% of all cases and shows this same rate in a variety of studies. This review highlights side effects of psychotherapy both on the part of the patients and of the therapists. It reports unwanted effects related to different psychotherapeutic methods, i.e. psychoanalysis, cognitive behaviour therapy, client-centered psychotherapy and – beyond these basic orientations – group psychotherapy. The paper also reports on negative effects of psychotherapy on an untreated partner. Finally, some proposals are given on how negative effects of psychotherapy could be diminished. The authors especially highlight the possibilities of changing the therapist, the treatment technique, or the theoretical treatment approach as a way to reduce negative effects.     

Re-thinking stages of cognitive development: an appraisal of connectionist models of the balance scale task

The present paper re-appraises connectionist attempts to explain how human cognitive development appears to progress through a series of sequential stages. Models of performance on the Piagetian balance scale task are the focus of attention. Limitations of these models are discussed and replications and extensions to the work are provided via the Cascade-Correlation algorithm. An application of multi-group latent class analysis for examining performance of the networks is described and these results reveal fundamental functional characteristics of the networks. Evidence is provided that strongly suggests that the networks are unable to acquire a mastery of torque and, although they do recover certain rules of operation that humans do, they also show a propensity to acquire rules never previously seen.     

Determinants of academic self-efficacy in different socialization contexts: investigating the relationship between students’ academic self-efficacy and its sources in different contexts

Social Psychology of Education - The present study examined the four sources of self-efficacy (mastery experience, vicarious experience, verbal and social persuasion, and physiological state) and...     

Antecedents,Consequences, and Mechanisms: On the Longitudinal Interplay Between Academic Self‐Enhancement and Psychological Adjustment

We investigated the reciprocal associations between academic self‐enhancement and key indicators of intra‐ and interpersonal adjustment as well as the role of self‐esteem as a mediator. This longitudinal study involved three assessments in a sample of 709 German children and adolescents (M_age = 11.83; 54% female) over the course of one academic year. We assessed self‐reported subjective well‐being as an indicator of intrapersonal adjustment and peer‐reported popularity as an indicator of interpersonal adjustment. We computed cross‐lagged and longitudinal mediational analyses. Academic self‐enhancement prospectively predicted high subsequent well‐being and popularity. Vice versa, well‐being and popularity prospectively predicted high subsequent levels of self‐enhancement. High self‐esteem mediated the longitudinal associations between self‐enhancement and well‐being in both directions, but not the links between self‐enhancement and popularity. Self‐enhancement and adjustment are bidirectionally linked: Self‐enhancement entails intrapersonal and interpersonal benefits; at the same time, adjustment in both domains fosters self‐enhancement. In terms of intrapersonal, but not interpersonal adjustment, self‐esteem seems to serve as a linchpin, accounting for all longitudinal associations. Furthermore, we present evidence indicating that self‐enhancement indicators that are based on difference scores (instead of residuals) are problematic and might have led to negatively biased results in the literature.