Beliefs about birth rank and their reflection in reality

Beliefs about birth rank reflect what the society regards as social reality, and they may also influence that reality. Three studies found that people believe those with different birth ranks differ in their personalities, that higher birth ranks are likely to attain higher occupational prestige, and that the personality characteristics attributed to the various birth ranks favor the actual attainment of higher occupational prestige. In one example of such beliefs, firstborns were rated as most intelligent but least creative whereas the opposite was true of last-borns. The 4th study found that those with higher birth ranks in fact attain more prestigious occupations and actually do complete more years of schooling.     

Religious versus Conventional Internet-based Cognitive Behavioral Therapy for Depression

The accessibility and efficacy of two Internet-supported interventions for depression: conventional cognitive behavioral therapy (C-CBT) and religious CBT (R-CBT) were investigated. Depressed participants (N = 79) were randomly assigned to either active treatment or wait-listed control group. Self-report measures of depression, anxiety, and life quality were collected before, immediately after, and 6 months after the intervention. Significant differences among the three conditions emerged at post-intervention with medium to large effect sizes (Cohen’s d between 0.45 and 1.89), but no differences between the R-CBT and C-CBT were found. However, the addition of religious components to CBT contributed to the initial treatment appeal for religious participants, thus increasing the treatment accessibility.     

On the use of wireless response systems in experimental psychology: Implications for the behavioral researcher

A method of data collection is presented that unites the efficiency of mass testing with the ease of instant electronic data collection that is typical of computer-based experiments run on individual participants. A wireless response system (WRS), originally designed as a teaching tool, is used to replicate three classic and robust effects from the memory literature (effects of false memory, levels of processing, and word frequency). It is shown that for these types of experimental designs, data can be collected more efficiently (in both time and effort) with the WRS method than through traditional mass- and individual-testing methods alone. The advantages and limitations of WRSs for use in mass electronic data collection are discussed.     

Fimbria-fornix lesions disrupt the dead reckoning (homing) component of exploratory behavior in mice

Exploration is the primary way in which rodents gather information about their spatial surroundings. Thus, spatial theories propose that damage to the hippocampus, a structure thought to play a fundamental role in spatial behavior, should disrupt exploration. Exploration in rats is organized. The animals create home bases that are central to exploratory excursions and returns, and hippocampal formation damage alters the organization of exploration by disrupting returns. Mice do not appear to readily establish home bases in novel environments, thus, for this species, it is more difficult to establish the contribution of the hippocampus to exploration. The purpose of the present study was threefold: develop a task in which mice center their exploration from a home base, determine whether the exploratory behavior is organized, and evaluate the role of fimbria-fornix lesions on exploration. Mice were given a novel exploratory task in which their nesting material was placed on a large circular table. Video records of control and fimbria-fornix mice were made in both light and dark (infrared light) conditions. Exploration patterns (outward trips, stops, and homeward trips) were reconstructed from the video records. Control mice centered their activity on their bedding, from which they made circuitous outward trips marked by many stops, and periodic direct returns. The bedding-centered behavior and outward trips of the fimbria-fornix mice were similar to those of the control mice, but significantly fewer direct return trips occurred. The direct homeward trips observed under light and dark conditions were consistent with a dead-reckoning strategy, in which an animal computes its present position and homeward trajectory from self-movement cues generated on the outward trip. Because the fimbria-fornix lesions disrupted the homeward component of exploratory trips, we conclude that the fimbria-fornix may contribute to dead reckoning in mice. The results also show that the home-bedding methodology facilitates the establishment of a home base by mice, thus providing a useful methodology for studies with mice.     

Family Therapy in Poland: Development and Current Perspectives

The authors of the present article describe the historical context of family therapy in Poland and current issues in the field. They highlight the fact that Polish therapists first began to develop the field after coming into contact with family therapy leaders from the United States and Western Europe. With the political breakthrough of 1989, there were new opportunities for multilateral cooperation, attendance at international conferences, and the exchange of experiences. Currently, the work of Polish family therapists, the place of family therapy among other forms of psychotherapy, and the related problems and challenges do not differ from other European nations.     

Postprandial scanning by the rat (Rattus norvegicus): the importance of eating time and an application of "warm-up" movements

We observed the movements of rats (Rattus norvegicus) after they had eaten food pellets of various size or hardness. With rooted hindlegs, they made head scans, with vibrissae in contact with the substrate, that began over the area below where they had eaten and then expanded to include almost the entire area surrounding their body. Scanning was not contingent on the presence of dropped food. It occurred when rats ate on a screen through which any dropped crumbs could fall. It also occurred when rats were trained to find food at a location distant to where they ate. Although the duration of scanning increased in proportion to the size of food consumed, when eating time was varied, using food items of similar size but different hardness, scanning increased in proportion to eating time. Postprandial scans resemble the exploratory (warm-up) movements that bridge transitions from immobility to locomotion. We propose that a subset of the movements of warm-up are co-opted in this postprandial period. It is likely that in natural foraging situations they are useful for food searching. The results suggest that although the motor system may be conservative in the number of actions that it can produce, diversity is achieved by applying fundamental patterns to many uses.     

Understanding risk for psychopathology through imaging gene-environment interactions

Examining the interplay of genes, experience and the brain is crucial to understanding psychopathology. We review the recent gene-environment interaction (G×E) and imaging genetics literature with the goal of developing models to bridge these approaches within single imaging gene-environment interaction (IG×E) studies. We explore challenges inherent in both G×E and imaging genetics and highlight studies that address these limitations. In specifying IG×E models, we examine statistical methods for combining these approaches, and explore plausible biological mechanisms (e.g. epigenetics) through which these conditional mechanisms can be understood. Finally, we discuss the potential contribution that IG×E studies can make to understanding psychopathology and developing more personalized and effective prevention and treatment.