Writing and reading skills as assessed by teachers in 7-year olds: A behavioral genetic approach

A behavioral genetic analysis of general writing ability was conducted using teacher assessments based on UK National Curriculum criteria for a sample of 3296 same-sex pairs of 7-year-old twins. Writing was highly heritable within the normal range (0.66) and at the low extreme (0.70). Environmental influences were almost all non-shared, with shared environmental estimates negligible (0.07 normal range, 0.06 low extreme). Bivariate genetic analyses of teacher assessments of writing and reading indicated that 69% of the genetic influences on writing were in common with those on reading, and that the two skills shared all of their shared environmental influences. In contrast, non-shared environmental factors are largely specific, with 86% independent of those on reading.     

Extracellular amino acid levels in the paraventricular nucleus and the central amygdala in high- and low-anxiety dams rats during maternal aggression: regulation by oxytocin

Brain oxytocin (OT) regulates aspects of emotionality and stress coping including maternal behavior and maternal aggression. Maternal aggression correlates with the amount of OT released within the paraventricular nucleus (PVN) and the central amygdala (CeA). OT, a key neurotransmitter or neuromodulator, is likely to modulate other neurotransmitter systems. Here, we investigated the dynamic changes in extracellular concentrations of the amino acids aspartate, glutamate, gamma-aminobutyric acid (GABA), serine, histidine, arginine and taurine in the PVN and CeA in lactating rats bred for high (HAB) and low (LAB) anxiety-related behavior under basal conditions and during maternal aggression. Further, to determine whether local OT is involved in the regulation of amino acid release we infused a selective OT receptor antagonist (OTA) via local retrodialysis. Within the CeA, HAB and LAB dams differed in the basal release of glutamate and arginine. Infusion of a selective OTA increased the concentrations of glutamate and aspartate in LAB dams and GABA in HAB dams. In OTA-treated HAB and LAB dams taurine levels increased during maternal aggression. Within the PVN, the highly-aggressive HAB dams showed a more pronounced increase in aspartate and serine levels; the latter being attenuated by local OTA administration. However, OTA did not affect the level of any amino acid in the LAB dams. Thus, the extracellular concentrations of selected amino acids differed between lactating HAB and LAB dams under both basal conditions and following maternal aggression. The effects of OT within the CeA and PVN on maternal aggressive behavior might be related to its regulation of local amino acid release.     

Impact of Terrorism, Insurgency, and Other Human-caused Catastrophes on Pivotal National Leaders’ Vision Statements

Vision statements articulated by seven pivotal national leaders before and after a catastrophe were examined for changes in moral reasoning stage, moral reasoning orientation, explanatory style, and rumination. Established two-stage structured content analysis methods were used and a perspective of shared leadership. Five leaders showed no significant change in moral reasoning stage but two showed a statistically significant reduction following overt attack on their homeland. After a catastrophe, six showed significant change in moral reasoning orientation, four showed less positive or negative explanatory style, and all seven showed high rumination. From an organizational systems perspective, an impact of human-caused catastrophe was adjustment of these four variables in pivotal national leaders’ vision statements as if they are systems levers.     

EMuJoy: Software for continuous measurement of perceived emotions in music

An adequate study of emotions in music and film should be based on the real-time measurement of selfreported data using a continuous-response method. The recording system discussed in this article reflects two important aspects of such research: First, for a better comparison of results, experimental and technical standards for continuous measurement should be taken into account, and second, the recording system should be open to the inclusion of multimodal stimuli. In light of these two considerations, our article addresses four basic principles of the continuous measurement of emotions: (1) the dimensionality of the emotion space, (2) data acquisition (e.g., the synchronization of media and the self-reported data), (3) interface construction for emotional responses, and (4) the use of multiple stimulus modalities. Researcher-developed software (EMuJoy) is presented as a freeware solution for the continuous measurement of responses to different media, along with empirical data from the self-reports of 38 subjects listening to emotional music and viewing affective pictures. Behavior Research Methods     

An overview of paradoxical counseling and its congruence with biblical writings

Paradoxical counseling (PC) became popular in the second part of last century with the advent of systemic and multi-relational therapies. Since then, it has changed into a variety of behavioral techniques still in use today. How consistent or inconsistent is PC will depend a great deal upon each counselor's beliefs, including those who consider themselves pastoral counselors or Christian counselors. The authors suggest, however, that using workbooks written in both linear-straight-forward or circular-paradoxical ways as homework assignments may enlarge the expertise of a variety of counselors in ways perhaps heretofore unfamiliar to them.     

Explorations of anticipatory behavioral control (ABC): a report from the cognitive psychology unit of the University of Würzburg

The report comprises recent theoretical considerations, experimental research, and simulations which all aim at a clarification of anticipatory mechanisms of behavioral control.     

Autonomy,culture, and well-being: The benefits of inclusive autonomy

In an attempt to understand cultural variation in motivation, we distinguished between the type of motivation (ranging from controlled to autonomous, as conventionally measured) and the subject of motivation (“I” vs. “my family and I”), creating measures of individual and inclusive academic motivation. Support was found for three hypotheses. First, Chinese Canadian and Singaporean students felt less relative autonomy than European Canadian students, on both the inclusive and individual measures. Second, individual relative autonomy was associated with psychological well-being (WB) for European Canadians and Chinese Canadians (Study 1), and Singaporeans (Study 2). Third, inclusive relative autonomy was associated with psychological well-being for Chinese Canadians and Singaporeans, but not European Canadians. Exploratory analyses are also presented, and implications for the theory and measurement of autonomy are discussed.     

Individual differences in components of reaction time distributions and their relations to working memory and intelligence

The authors bring together approaches from cognitive and individual differences psychology to model characteristics of reaction time distributions beyond measures of central tendency. Ex-Gaussian distributions and a diffusion model approach are used to describe individuals' reaction time data. The authors identified common latent factors for each of the 3 ex-Gaussian parameters and for 3 parameters central to the diffusion model using structural equation modeling for a battery of choice reaction tasks. These factors had differential relations to criterion constructs. Parameters reflecting the tail of the distribution (i.e., tau in the ex-Gaussian and drift rate in the diffusion model) were the strongest unique predictors of working memory, reasoning, and psychometric speed. Theories of controlled attention and binding are discussed as potential theoretical explanations.     

Abductive reasoning in neural-symbolic systems

Abduction is or subsumes a process of inference. It entertains possible hypotheses and it chooses hypotheses for further scrutiny. There is a large literature on various aspects of non-symbolic, subconscious abduction. There is also a very active research community working on the symbolic (logical) characterisation of abduction, which typically treats it as a form of hypothetico-deductive reasoning. In this paper we start to bridge the gap between the symbolic and sub-symbolic approaches to abduction. We are interested in benefiting from developments made by each community. In particular, we are interested in the ability of non-symbolic systems (neural networks) to learn from experience using efficient algorithms and to perform massively parallel computations of alternative abductive explanations. At the same time, we would like to benefit from the rigour and semantic clarity of symbolic logic. We present two approaches to dealing with abduction in neural networks. One of them uses Connectionist Modal Logic and a translation of Horn clauses into modal clauses to come up with a neural network ensemble that computes abductive explanations in a top-down fashion. The other combines neural-symbolic systems and abductive logic programming and proposes a neural architecture which performs a more systematic, bottom-up computation of alternative abductive explanations. Both approaches employ standard neural network architectures which are already known to be highly effective in practical learning applications. Differently from previous work in the area, our aim is to promote the integration of reasoning and learning in a way that the neural network provides the machinery for cognitive computation, inductive learning and hypothetical reasoning, while logic provides the rigour and explanation capability to the systems, facilitating the interaction with the outside world. Although it is left as future work to determine whether the structure of one of the proposed approaches is more amenable to learning than the other, we hope to have contributed to the development of the area by approaching it from the perspective of symbolic and sub-symbolic integration.