Gender,Sacrifices, and Variability in Commitment: A Daily Diary Study of Pregnant Heterosexual Cohabitors and their Partners

We use interdependence theory and the inertia model to examine how gender and daily relational sacrifices predict daily variability in relationship commitment across a week in 43 U.S. couples who are unmarried cohabitors expecting their first child together (total of 455 days of data). We examined three variants of daily relational sacrifices: frequency, ease, and awareness for both individuals and partners, and we tested for gender differences. Using an Actor Partner Interdependence Model (APIM), we found that both women and men reported lower variability in commitment when men were perceived as highly aware of the sacrifices made for them. Additionally, women experienced lower variability in commitment when their male partners reported engaging in easier sacrifices. In contrast, women reported higher variability in commitment when they reported greater frequency of sacrifices for their partner. The results can be of practical use for practitioners working with expectant cohabitors and their partners given the unique role gender plays relative to how sacrifices shape variability in daily commitment.     

Phonetic variability and prosodic structure in mothers

Spontaneous speech acoustics are highly variable. Such variability may be problematic for infants relying on phonological form to solve the segmentation problem. In the present study, acoustic measures of vowel duration and a computer model of speech segmentation were used to evaluate the problem of phonetic variability for a rhythm-based speech segmentation strategy. The specific questions under study were (1) whether or not mothers realized disyllabic vowel duration patterns consistently in spontaneous infant-directed speech, and (2) whether or not these patterns were distinctive enough in the context of an utterance to provide a useful cue for speech segmentation. Data from four English-speaking mothers indicated that the trochaic-like duration pattern may interact with phrase-position and with grammatical category, but when the resulting patterns are consistent, they provide useful segmentation cues for spontaneous infant-directed speech.     

Helping military families through the deployment process: Strategies to support parenting

Recent studies have highlighted the impact of deployment on military families and children and the corresponding need for interventions to support them. Historically, however, little emphasis has been placed on family-based interventions in general, and parenting interventions in particular, with returning service members. This paper provides an overview of research on the associations between combat deployment, parental adjustment of service members and spouses, parenting impairments, and children's adjustment problems, and provides a social interaction learning framework for research and practice to support parenting among military families affected by a parent's deployment. We then describe the Parent Management Training-Oregon model (PMTO(?)), a family of interventions that improves parenting practices and child adjustment in highly stressed families, and briefly present work on an adaptation of PMTO for use in military families (After Deployment: Adaptive Parenting Tools, or ADAPT). The article concludes with PMTO-based recommendations for clinicians providing parenting support to military families.     

The change probability effect: incidental learning, adaptability, and shared visual working memory resources

Statistical properties in the visual environment can be used to improve performance on visual working memory (VWM) tasks. The current study examined the ability to incidentally learn that a change is more likely to occur to a particular feature dimension (shape, color, or location) and use this information to improve change detection performance for that dimension (the change probability effect). Participants completed a change detection task in which one change type was more probable than others. Change probability effects were found for color and shape changes, but not location changes, and intentional strategies did not improve the effect. Furthermore, the change probability effect developed and adapted to new probability information quickly. Finally, in some conditions, an improvement in change detection performance for a probable change led to an impairment in change detection for improbable changes.     

Early growth response gene 1 (Egr-1) is required for new and reactivated fear memories in the lateral amygdala

The immediate-early gene early growth response gene-1 (EGR-1, zif-268) has been extensively studied in synaptic plasticity and memory formation in a variety of memory systems. However, a convincing role for EGR-1 in amygdala-dependent memory consolidation processes has yet to emerge. In the present study, we have examined the role of EGR-1 in the consolidation and reconsolidation of amygdala-dependent auditory Pavlovian fear conditioning. In our first series of experiments, we show that EGR-1 is regulated following auditory fear conditioning in the lateral nucleus of the amygdala (LA). Next, we use antisense oligodeoxynucleotide (ODN) knockdown of EGR-1 in the LA to show that training-induced expression of EGR-1 is required for memory consolidation of auditory fear conditioning; that is, long-term memory (LTM) is significantly impaired while acquisition and short-term memory (STM) are intact. In a second set of experiments, we show that EGR-1 is regulated in the LA by retrieval of an auditory fear memory. We then show that retrieval-induced expression of EGR-1 in the LA is required for memory reconsolidation of auditory fear conditioning; that is, post-retrieval (PR)-LTM is significantly impaired while memory retrieval and PR-STM are intact. Additional experiments show these effects to be restricted to the LA, to be temporally graded, and unlikely to be due to nonspecific toxicity within the LA. Collectively, our findings strongly implicate a role for EGR-1 in both the initial consolidation and in the reconsolidation of auditory fear memories in the LA.     

Multisensory perceptual learning reshapes both fast and slow mechanisms of crossmodal processing

Previous research has shown that sounds facilitate perception of visual patterns appearing immediately after the sound but impair perception of patterns appearing after some delay. Here we examined the spatial gradient of the fast crossmodal facilitation effect and the slow inhibition effect in order to test whether they reflect separate mechanisms. We found that crossmodal facilitation is only observed at visual field locations overlapping with the sound, whereas crossmodal inhibition affects the whole hemifield. Furthermore, we tested whether multisensory perceptual learning with misaligned audio-visual stimuli reshapes crossmodal facilitation and inhibition. We found that training shifts crossmodal facilitation towards the trained location without changing its range. By contrast, training narrows the range of inhibition without shifting its position. Our results suggest that crossmodal facilitation and inhibition reflect separate mechanisms that can both be reshaped by multisensory experience even in adult humans. Multisensory links seem to be more plastic than previously thought.     

Moral Arguments in the Debate over Nanotechnologies: Are We Talking Past Each Other?

How are we to understand the fact that the philosophical debate over nanotechnologies has been reduced to a clash of seemingly preprogrammed arguments and counterarguments that paralyzes all rational discussion of the ultimate ethical question of social acceptability in matters of nanotechnological development? With this issue as its starting point, the study reported on here, intended to further comprehension of the issues rather than provide a cause-and-effect explanation, seeks to achieve a rational grasp of what is being said through the appeals made to this or that principle in the range of arguments put forward in publications on the subject. We present the results of the study’s analyses in two parts. In the first, we lay out the seven categories of argument that emerged from an analysis of the literature: the arguments based on nature, dignity, the good life, utility, equity, autonomy, and rights. In the second part, we present the background moral stances that support each category of argument. Identifying the different categories of argument and the moral stance that underlies each category will enable a better grasp of the reasons for the multiplicity of the arguments that figure in discussions of the acceptability of nanotechnologies and will ultimately contribute to overcoming the tendency towards talking past each other that all too often disfigures the exchange. Clarifying the implications of the moral arguments deployed in the debate over nanotechnologies may make it possible to reduce the confusion observable in these exchanges and contribute to a better grasp of the reasons for their current unproductiveness.     

Influences on employee perceptions of organizational work–life support: Signals and resources

This study examined predictors of employee perceptions of organizational work–life support. Using organizational support theory and conservation of resources theory, we reasoned that workplace demands and resources shape employees' perceptions of work–life support through two mechanisms: signaling that the organization cares about their work–life balance and helping them develop and conserve resources needed to meet work and nonwork responsibilities. Consistent with our hypotheses, we found that higher demands (work hours and work overload) were associated with reduced perceptions that the organization was supportive of work–life integration. Resources (job security, fit between employees' needs and the flexible work options available to them, supervisor support and work group support) were positively associated with perceptions of organizational work–life support. The results of this study urge further scholarly attention to work-based demands and resources as predictors of perceived organizational work–life support and yield implications for managerial practice.     

Memory for sound, with an ear toward hearing in complex auditory scenes

An area of research that has experienced recent growth is the study of memory during perception of simple and complex auditory scenes. These studies have provided important information about how well auditory objects are encoded in memory and how well listeners can notice changes in auditory scenes. These are significant developments because they present an opportunity to better understand how we hear in realistic situations, how higher-level aspects of hearing such as semantics and prior exposure affect perception, and the similarities and differences between auditory perception and perception in other modalities, such as vision and touch. The research also poses exciting challenges for behavioral and neural models of how auditory perception and memory work.