Elemental and non-elemental olfactory learning in Drosophila

Brain complexity varies across many orders of magnitude between animals, and it is often assumed that complexity underpins cognition. It is thus important to explore the cognitive capacity of widely used model organisms such as Drosophila. We systematically investigated the fly’s ability to learn discriminations involving compound olfactory stimuli associated with shock. Flies could distinguish binary mixtures (AB+ CD-), including overlapping mixtures (AB+ BC-). They could learn positive patterning (AB+ A- B-) but could not learn negative patterning (A+ B+ AB-) or solve a biconditional discrimination task (AB+ CD+ AC- BD-). Learning about the elements of a compound (AB+) was not affected by prior conditioning of one of the elements (A+ AB+): flies do not exhibit blocking in this task. We compare these results with the predictions from simulation of several well-known theoretical models of learning, and find none are fully consistent with the overall pattern of observed behaviour.     

Volunteers Versus Non-Volunteers��Which Group Cheats More, and Holds More lax Attitudes About Cheating?

Academic dishonesty has been a frequent topic of research and discussion. In this article, we examine the differences between student volunteers and student non-volunteers in terms of their attitudes towards academic dishonesty as well as their cheating behaviors. We found that student volunteers held more serious attitudes towards cheating and academic dishonesty than did student non-volunteers; however there were not many significant differences between student volunteers and student non-volunteers when it came to cheating behaviors. We finally provide some suggestions for future research in the topic of academic dishonesty.     

A politics beyond subjects: The affective choreographies and smooth spaces of schooling

In this paper we explore the significance and workings of space, subjectivity and affectivity in everyday life in schools. We bring together conceptual tools from Foucault, Butler and Deleuze and Guattari to make sense of the ways that school spaces and subjects are constituted; to consider the significance of affectivities in everyday school life; and to show how these unsettle the subjects and spaces of the education assemblage. We draw on the notion of affective choreographies to move from a focus on the individual subject and body to a concern with bodies as amalgam and an analysis that foregrounds collectivities and the event and so is anti-subjectivation. Engaging with two detailed accounts of everyday school life through affective choreographies we demonstrate the tacit collectivity of the event; the demarcation of what bodies can and cannot do; and the way that affective intensities exceed these demarcations. This approach, we suggest, enables us to interrogate the constraints of discourse and subjectivation at the same time as we think beyond the subjectivated subject and the striations of the assemblage, thereby opening up new possibilities for a politics of becoming.     

Stability of Early Identified Aggressive Victim Status in Elementary School and Associations with Later Mental Health Problems and Functional Impairments

Aggressive victims—children who are both perpetrators and victims of peer aggression—experience greater concurrent mental health problems and impairments than children who are only aggressive or only victimized. The stability of early identified aggressive victim status has not been evaluated due to the fact that most studies of aggressor/victim subgroups have focused on preadolescents and/or adolescents. Further, whether children who exhibit early and persistent patterns of aggression and victimization continue to experience greater mental health problems and functional impairments through the transition to adolescence is not known. This study followed 344 children (180 girls) previously identified as socially adjusted, victims, aggressors, or aggressive victims at Grade 1 (Burk et al. 2008) to investigate their involvement in peer bullying through Grade 5. The children, their mothers, and teachers reported on children’s involvement in peer aggression and victimization at Grades 1, 3, and 5; and reported on internalizing symptoms, externalizing symptoms, inattention and impulsivity, as well as academic functioning, physical health, and service use at Grades 5, 7, and 9. Most children categorized as aggressive victims in Grade 1 continued to be significantly involved in peer bullying across elementary school. Children with recurrent aggressive victim status exhibited higher levels of some mental health problems and greater school impairments across the adolescent transition when compared to other longitudinal peer status groups. This study suggests screening for aggressive victim status at Grade 1 is potentially beneficial. Further early interventions may need to be carefully tailored to prevent and/or attenuate later psychological, academic, and physical health problems.     

Emotional intelligence and psychological resilience to negative life events

This study investigated the relative importance of six emotional intelligence (EI) dimensions in the prediction of psychological resilience to multiple negative life events. The strength of relations between life events and distress varied markedly across three latent classes of participants, reflecting vulnerable, average and resilient profiles. Discriminant function analysis indicated that class membership varied as a function of four EI dimensions, with higher scores predicting membership to the resilient class. Across the 414 participants, Emotional Self-Awareness, Emotional Expression, Emotional Self-Control and particularly Emotional Self-Management appeared central to psychological resilience in the aftermath of multiple negative life events.     

Making Sense of the Barriers Women Face in the Information Technology Work Force: Standpoint Theory, Self-disclosure, and Causal Maps

Two theoretical perspectives (i.e., standpoint theory and the communication boundary management theory) were used to investigate the comments that 39 female information technology (IT) employees made during focus groups as they discussed issues related to workplace barriers and voluntary turnover. The revealed causal mapping method was used to analyze the women’s responses. Voluntary turnover decisions were influenced by work schedule flexibility, family responsibilities, work stress, job qualities, and lack of consistency in workplace policies. Perceived barriers to promotion were linked to lack of respect, ageism, stress, and work schedule flexibility. Differences emerged between explicitly stated and implicitly embedded responses. Women explicitly discussed issues consistent with previous IT research; however their implicit statements often addressed barriers not commonly linked with IT advancement and turnover concerns.     

DNA methylation of NR3c1 in infancy: Associations between maternal caregiving and infant sex

Caregivers play a critical role in scaffolding infant stress reactivity and regulation, but the mechanisms by which this scaffolding occurs is unclear. Animal models strongly suggest that epigenetic processes, such as DNA methylation, are sensitive to caregiving behaviors and, in turn, offspring stress reactivity. We examined the direct effects of caregiving behaviors on DNA methylation in infants and infant stress reactivity. Infants and mothers (N = 128) were assessed during a free play when infants were 5 months old. Maternal responsiveness and appropriate touch were coded. and infant buccal epithelial cells were sampled to assess for DNA methylation of the glucocorticoid receptor gene, NR3c1 exon 1F. Infant cortisol reactivity was assessed in response to the still-face paradigm. Greater levels of maternal responsiveness and appropriate touch were related to less DNA methylation of specific regions in NR3c1 exon 1F, but only for females. There was no association with maternal responsiveness and appropriate touch or DNA methylation of NR3c1 exon 1F on prestress cortisol or cortisol reactivity. Our results are discussed in relation to programming models that implicate maternal care as an important factor in programing infant stress reactivity.     

Jerusalem: The problems and responsibilities of sacred space

Focusing on the central role the city of Jerusalem plays in Christianity, Judaism and Islam, this paper addresses the question of what makes particular cities 'holy' and sacred to people, the meaning and responsibilities that this 'sacredness' entails and whether this 'sacredness' in fact affects the conduct of politicians when determining the fate of a sacred city such as Jerusalem. Answers to these questions are found deep in the human psyche, in what historians of religion have called a 'sacred geography' and in the sense of exile from a holy place that makes it that much more precious to the people attached to it.     

Effects of modeling versus instructions on sensitivity to reinforcement schedules

This study examined the effects of modeling versus instructions on the choices of 3 typically developing children and 3 children with attention deficit hyperactivity disorder (ADHD) whose academic responding showed insensitivity to reinforcement schedules. During baseline, students chose between successively presented pairs of mathematics problems associated with different variable-interval schedules of reinforcement. After responding proved insensitive to the schedules, sessions were preceded by either instructions or modeling, counterbalanced across students in a multiple baseline design across subjects. During the instruction condition, students were told how to distribute responding to earn the most reinforcers. During the modeling condition, students observed the experimenter performing the task while describing her distribution of responding to obtain the most reinforcers. Once responding approximated obtained reinforcement under either condition, the schedules of reinforcement were changed, and neither instruction nor modeling was provided. Both instruction and modeling interventions quickly produced patterns of response allocation that approximated obtained rates of reinforcement, but responding established with modeling was more sensitive to subsequent changes in the reinforcement schedules than responding established with instructions. Results were similar for students with and without ADHD.