A method for identifying eggs laid by individual birds

A method for identifying eggs laid by different subsections or individual members of groups of domestic hens is described. Fat-soluble dyes are placed in gelatin capsules and fed to selected birds. These dyes produce discrete colored bands in the yolks of eggs laid by those birds. The presence of dye in eggs can be detected through the shell, and different patterns of rings can be distinguished by boiling and sectioning eggs. Application of the method to other species and other circumstances is considered.     

Metalinguistic awareness and language development

Thirty-six 3- and 4-year-old children were given a battery of six metalinguistic tasks and two measures of language development: the Peabody Picture Vocabulary Test and a sentence comprehension test. The results clearly showed that the majority of preschoolers were able to make at least some metalinguistic judgments, and that metalinguistic performance improved with age. Furthermore, overall performance on the metalinguistic tasks was significantly correlated with each language measure when the effects of age were partialed out. In contrast, the correlation between age and metalinguistic performance was not significant once the effects of both language measures were partialed out. These data demonstrate that preschoolers' metalinguistic abilities are more extensive than has been previously acknowledged, and that they are closely tied to other aspects of language development at this time.     

Counseling Women in Behavioral Self-Direction

After consciousness raising, what? Women who want to alter their socialized responses may learn the necessary skills from counselors. Teaching behavioral self-management principles in the context of women's sex role enculturation is a preventive as well as corrective approach to helping women develop increased personal effectiveness. It is also an important option for those who do not need therapy or who have found other skill training insufficient.     

Personal memories at different ages

Men and women aged between 25 and 75 were asked to associate personal experiences to a set of 50 randomly chosen common words. The dates of these experiences were reconstructed and plotted as frequency distributions. Neither sex differences nor introversion--extraversion had reliable effects, and response latencies did not differ between conditions, but age differences significantly affected the memory distributions. Contrary to the hypothesis that ageing produces a selective deficit for recency, it appears that the average date of remembered events tends to increase with age.     

Things fall apart. The cultural complex in contemporary times1

These extraordinary months due to COVID-19 and the Black Lives Matter protests, set as they are against a backdrop of the increasingly worrying climate emergency, have brought fear, anxiety and discord across the globe. But we have also experienced a deepening of our understanding of our connectedness, protests against injustice, expressions of social concern and a demand for change. The concept of the cultural complex as developed by Singer & Kimbles (2004) offers a helpful means of connecting the psychology of the individual psyche and the political phenomena of power relations. Using a small example to illustrate how it might operate at a local level, I suggest that a fundamental shift is taking place raising profound levels of anxiety as we move from the known to the unknown. The bipolar nature of these complexes means the extremes are surfacing bringing fears of the very real possibility of more entrenched attacks on democracy from the far right and the hunkering down behind armed borders. But there is also hope that different ways of living together may be developing from the ground up, ways that are rooted in our sense of interdependence – with each other and our planetary home.     

Maternal Emotion Socialization of Adolescent Girls Engaging in Non-Suicidal Self-Injury

Research on Child and Adolescent Psychopathology - Non-suicidal self injury (NSSI) is a transdiagnostic maladaptive behavior that is highly prevalent in adolescence. A greater understanding of the...     

Injustice impairs self-regulation and affects food choice

Overweight and obesity are risk factors for a range of chronic diseases, many of them caused by excessive consumption of unhealthy foods and insufficient consumption of healthy foods. The present study aims to experimentally test the effect of being exposed to injustice on the intention to consume healthy and unhealthy foods, through self-regulation. We predicted that injustice decreases self-regulation which in turn increases the intention to consume unhealthy foods and decreases the intention to consume healthy foods. Undergraduate students (N = 175; 89% women; M_age = 24.28, SD = 7.36) were randomly exposed to a scenario describing an unjust or a just academic situation. In a subsequent allegedly unrelated task, participants were asked to indicate their intention to consume each of 26 food items (half depicting unhealthy foods and half healthy foods, random order) during the subsequent week. As expected, injustice decreased self-regulation which in turn increased the intention to consume unhealthy foods and decreased the intention to consume healthy foods. These results highlight the central importance of justice perceptions in the study of consumption and contribute to frame it in the study of the consequences of economic inequalities for nutrition.