Reward priming of temporal preparation

Recent studies have demonstrated a strong impact of reward on the expectancy of future target locations or features. In this study, we examined whether reward would have similar effects on temporal preparation. In two experiments, participants completed a reaction time task with a variable interval between a warning stimulus and the target stimulus. After each trial they were awarded either low or high reward which was converted to cash after the experiment. Crucially, reward magnitude was assigned randomly and was unrelated to task performance. Nevertheless, across experiments, the results revealed that reward modified future temporal preparation, especially in participants that could be identified as highly motivated. These findings generalize the principles of reward priming to the temporal domain.     

Prevalence of auditory verbal hallucinations in a general population: A group comparison study

The present study was specifically designed to investigate the prevalence of auditory verbal hallucinations (AVH) in the general population, and sought to compare similarities and differences regarding socio‐demographics, mental health and severe life events between individuals who have never experienced AVH with those who had. The study also aimed to compare those who sought professional help for their experience of AVH with those who had not sought help. Through a postal questionnaire, 2,533 participants ages 18 and over from a national survey completed the Launay‐Slade Hallucinations Scale and other measures examining AVH characteristics and other areas related to AVH. In total, 7.3% of the sample reported a life‐time prevalence of AVH. Those with AVH were more likely to be single and unemployed, reported higher levels of depression and anxiety, and experienced a higher number of severe life events compared with those without AVH. Only 16% of those who experienced AVH in the general population sought professional help for these experiences. Compared to those who did not seek professional help, participants that had were more likely to experience AVH with a negative content, experience them on a daily basis, undergo negative reactions when experiencing AVH, and resist AVH. In conclusion, the prevalence of AVH was found to be relatively high. The results also revealed higher levels of reduced mental health for individuals who sought professional help, followed by those who did not, compared with those who had never experienced AVH.     

The Contribution of Executive Function to Source Memory Development in Early Childhood

Age-related differences in episodic memory judgments assessing recall of fact information and the source of this information were examined. The role of executive function (EF) in supporting early episodic memory ability was also explored. Four- and 6-year-old children were taught 10 novel facts from two different sources (experimenter or puppet), and memory for both fact and source information was later tested. Measures of working memory, inhibitory control, and set shifting were obtained to produce an indicator of children's EF. Six-year-olds recalled more fact and source information than did 4-year-olds. Regression analyses revealed that age, language ability, and EF accounted for unique variance in children's fact recall and source recall performance. These findings suggest a link between episodic memory and EF, and we propose that developmental investigations should further explore this association.     

Agential Conversations: Interviewing Postdoctoral Life Scientists and the Politics of Mundane Research Practices

Science and Technology Studies (STS) projects often aim at understanding social problems and epistemic challenges in science and, more generally, in the technoscientific worlds we inhabit. However, it is often unclear if and how these projects can help address the problems they identify. Scholars such as Donna Haraway, John Law, and Karen Barad have argued that STS methods always interfere with the contexts they study. Combining this insight with recent feminist scholarship on the politics of care in technoscience suggests that a better understanding of how our research practices already interfere can help us attune our methods in order to promote care as part our research practices. One avenue to investigate this hypothesis is to return to a completed study and reconstruct how its research methods have created interference effects that promoted or could promote care for the problems the study identified. In the case at hand, the methods investigated are interviews with life scientists in Austria and the USA. The problem they defined is that current career rationales in the life sciences, which foreground individualism, mobility, and competition hinder collaboration, teamwork, and mentoring, strain group cohesion, and tend to exclude certain groups. Reframing the research interviews as ‘agential conversations’ that interfered with the contexts they sought to understand shows how the interviews also created situated moments of reflection, connection, and disruption that could serve as a basis for responding to these problematic conditions affecting researchers in the life sciences and beyond.     

A developmental neuroimaging investigation of the change paradigm

This neuroimaging study examines the development of cognitive flexibility using the Change task in a sample of youths and adults. The Change task requires subjects to inhibit a prepotent response and substitute an alternative response, and the task incorporates an algorithm that adjusts task difficulty in response to subject performance. Data from both groups combined show a network of prefrontal and parietal areas that are active during the task. For adults vs. youths, a distributed network was more active for successful change trials versus go, baseline, or unsuccessful change trials. This network included areas involved in rule representation, retrieval (lateral PFC), and switching (medial PFC and parietal regions). These results are consistent with data from previous task-switching experiments and inform developmental understandings of cognitive flexibility.     

Assessing categorization performance at the individual level: a comparison of Monte Carlo simulation and probability estimate model procedures

Two analytical procedures for identifying young children as categorizers, the Monte Carlo Simulation and the Probability Estimate Model, were compared. Using a sequential touching method, children aged 12, 18, 24, and 30 months were given seven object sets representing different levels of categorical classification. From their touching performance, the probability that children were categorizing was then determined independently using Monte Carlo Simulation and the Probability Estimate Model. The two analytical procedures resulted in different percentages of children being classified as categorizers. Results using the Monte Carlo Simulation were more consistent with group-level analyses than results using the Probability Estimate Model. These findings recommend using the Monte Carlo Simulation for determining individual categorizer classification.     

The Association Between Religious Beliefs and Practices and End-of-Life Fears Among Members of the Presbyterian Church (U.S.A)

This study examines the association between various religious beliefs and practices and fears pertaining to death and dying in a national sample of liberal Protestant U.S. adults. Data were analyzed from a 2002 survey of members and elders of the Presbyterian Church (U.S.A) (N = 935). Four measures of religion were tested together in models predicting four end-of-life fears. Church attendance (p < .01), other church involvement (p < .05), and belief in life after death (p < .001) had negative associations with the fear of what happens after death. Private devotion was inversely related to the fear of dying in pain (p < .05). Involvement in church activities (p < .05), aside from religious services, was inversely related to the fear of leaving loved ones behind. Females tended to be more fearful than males of dying alone and dying in pain and older adults tended to be less fearful than younger adults of the unknown and of leaving loved ones behind.     

Preliminary Efficacy of an Intervention to Reduce Psychosocial Stress and Improve Coping in Low-Income Families

This article reports pre-post intervention results from a randomized controlled trial evaluating the initial efficacy of a couples-based intervention aimed at teaching skills for coping with stress and improving relationship skills in a sample of 173 ethnically diverse low-income co-resident mothers and fathers who were raising at least one child together. Couples were randomly assigned to one of three interventions or to an assessment-only control condition. The Fatherhood, Relationship, and Marriage Education (FRAME) intervention is a 14-h psychoeducation intervention developed specifically to strengthen the ability of low-income mothers and fathers to reduce conflict, cope with stress, and co-parent effectively. Three versions of FRAME were assessed: a men-only group, a women-only group, and a couple's group. The pre-post intervention analyses revealed reductions in financial stress, disengagement coping, and involuntary disengagement responses, as well as improvements in problem solving. These pre-post changes on stress and coping variables were both statistically significant and reliable as assessed by the Reliable Change Index (Jacobson and Truax 1991). Results were particularly strong for the couples' and women's groups. In addition, positive pre-post changes on stress and coping variables were associated with pre-post reductions on symptoms of depression for participants assigned to an intervention. The results demonstrate that participants in FRAME acquire some of the key skills taught in the intervention, and skills acquisition appears to translate into symptom reduction. In addition, this study highlights the value of an intervention aiming to improve the capacity of parents with economic hardship to cope effectively with stress.