Child and adolescent services research at the national institute of mental health: Research opportunities in an emerging field

This article describes an important new area of research on services for children and adolescents with mental disorders at the National Institute of Mental Health, the parameters of mental health services research for youth, and the opportunities that are available for grant-funded investigations in this area.     

Gender subgroups and intergroup perception: adolescents' views of own-gender and other-gender groups

The authors examined intergroup bias and perceived group variability regarding gender subgroups relevant to the adolescent culture. Participants were 126 high school students, between 16 years and 19 years of age, who listed male and female subgroups, performed a series of group perception tasks, and, for each subgroup, indicated whether they themselves belonged to the group. Results showed that adolescents' perceptions of gender subgroups were subject to in-group favoritism and out-group derogation, as well as to group homogeneity effects. In line with predictions derived from Optimal Distinctiveness Theory, male and female participants favored in-groups over own-gender and other-gender out-groups and favored other-gender out-groups over own-gender outgroups. Ambivalence was particularly high with other-gender out-groups. The authors discussed implications for future research on the development of gender prejudice and for interventions to reduce prejudice.     

Applications of neural networks in training science

Training science views itself as an integrated and applied science, developing practical measures founded on scientific method. Therefore, it demands consideration of a wide spectrum of approaches and methods. Especially in the field of competitive sports, research questions are usually located in complex environments, so that mainly field studies are drawn upon to obtain broad external validity. Here, the interrelations between different variables or variable sets are mostly of a nonlinear character. In these cases, methods like neural networks, e.g., the pattern recognizing methods of Self-Organizing Kohonen Feature Maps or similar instruments to identify interactions might be successfully applied to analyze data. Following on from a classification of data analysis methods in training-science research, the aim of the contribution is to give examples of varied sports in which network approaches can be effectually used in training science. First, two examples are given in which neural networks are employed for pattern recognition. While one investigation deals with the detection of sporting talent in swimming, the other is located in game sports research, identifying tactical patterns in team handball. The third and last example shows how an artificial neural network can be used to predict competitive performance in swimming.     

XIV. Über die Messung von Wahrnehmungsbildern

Ohne Zusammenfassung Mit 9 Abbildungen im Text.     

Examining the sex- and circadian dependency of a learning phenotype in mice with glycine transporter 1 deletion in two Pavlovian conditioning paradigms

Behavioural characterisation of transgenic mice has been instrumental in search of therapeutic targets for the modulation of cognitive function. However, little effort has been devoted to phenotypic characterisation across environmental conditions and genomic differences such as sex and strain, which is essential to translational research. The present study is an effort in this direction. It scrutinised the stability and robustness of the phenotype of enhanced Pavlovian conditioning reported in mice with forebrain neuronal deletion of glycine transporter 1 by evaluating the possible presence of sex and circadian dependency, and its consistency across aversive and appetitive conditioning paradigms. The Pavlovian phenotype was essentially unaffected by the time of testing between the two circadian phases, but it was modified by sex in both conditioning paradigms. We observed that the effect size of the phenotype was strongest in female mice tested during the dark phase in the aversive paradigm. Critically, the presence of the phenotype in female mutants was accompanied by an increase in resistance to extinction. Similarly, enhanced conditioned responding once again emerged solely in female mutants in the appetitive conditioning experiment, which was again associated with an increased resistance to extinction across days, but male mutants exhibited an opposite trend towards facilitation of extinction. The present study has thus added hitherto unknown qualifications and specifications of a previously reported memory enhancing phenotype in this mouse line by identifying the determinants of the magnitude and direction of the expressed phenotype. This in-depth comparative approach is of value to the interpretation of behavioural findings in general.     

Impulsive responses in children with conduct disorder and borderline intellectual functioning.

The study is designed to investigate response inhibition in children with conduct disorder and borderline intellectual functioning. To this end, children are compared to a normal peer control group using the Alertness test. The test has two conditions. In one condition, children are instructed to push a response button after a visual "go" signal is presented on the screen. In a second condition the "go" signal is preceded by an auditory signal, telling the child that a target stimulus will occur soon. Compared to the control group, the group carrying the dual diagnosis made many preliminary responses (responses before the presentation of the "go" signal), especially in the condition with an auditory signal. This impulsive response style was controlled for attention deficit/hyperactivity disorder characteristics of the children.     

Frontal lobe dysfunctions in borderline personality disorder? Neuropsychological findings

This study aims to determine whether specific neuropsychological performance impairments in borderline patients can be objectified and whether these findings indicate frontal dysfunctions. Twenty-three patients with borderline personality disorder and 23 normal controls were examined using a neuropsychological test battery to assess intelligence, attentiveness, proneness to interference, learning and memory, as well as planning and problem solving. All subjects filled out standardized questionnaires to assess aggressiveness and impulsiveness in the context of these cognitive performance areas. The neuropsychological test results of the borderline patients were comparable to those of the controls. Although there were no indications of frontal dysfunction of cognitive information processing, inverse correlations were found between the severity of borderline-related personality traits regarding impulsiveness and various areas of cognitive performance. Borderline personality patients show no indications of frontal cognitive dysfunction. Further research is needed to clarify the relationship between impulsiveness and cognitive information processing in borderline personality disorder, including a dimensional approach to personality and personality disorder.     

Untersuchungen zur Psychologie der Wiedererzählung und des Gerüchtes

Ohne Zusammenfassung Anmerkung des Herausgebers: Mit der vorliegenden Arbeit habilitierte sich der Verfasser im Winter 1926 in der philosophischen Fakult?t der Universit?t Gie?en, w?hrend ich auf Urlaub in Amerika war. Unmittelbar nach der Habilitation brach bei ihm ein erbliches Leiden aus, das bald darauf seine v?llige Erblindung zur Folge hatte und nach wenigen Jahren seinem Leben ein Ende bereitete. Als ich im Sommer 1927 nach Gie?en kam, konnte ich nichts über den Verbleib des Manuskriptes erfahren, auch der Verfasser, mit dem ich einige Briefe wechselte, wu?te nichts mehr darüber zu sagen. Da? ich schlie?lich in den Besitz des Manuskriptes gekommen bin, veranke ich dem jetzigen Vorstand des psychologischen Institutes der Universit?t Gie?en, Herrn KollegenSander, mit dem ich die Angelegenheit auf dem letzten internationalen Kongre? in Kopenhagen besprach. — Es war mir ein Bedürfnis, meinem allzu früh verstorbenen Assistenten und Freund eine letzte Ehrung dadurch zu erweisen, da? ich seine letzte Arbeit zur Ver?ffentlichung bringe. Problem, Methode und Ausarbeitung sind sein Werk. Inzwischen hatF. C. Bartlett (Remembering, Cambridge 1932) ?hnliche, noch früher angestellte Versuche ver?ffentlicht, die dem Verfasser natürlich unbekannt waren und daher in seiner Arbeit nicht erw?hnt sein k?nnen.