The relative importance of three domains of positive and negative social exchanges: a longitudinal model with comparable measures

Researchers have expressed considerable interest in the question of whether positive or negative social exchanges more strongly affect psychological health, but previous studies have been limited by using nonparallel measures of positive and negative social exchanges, by measuring negative affect only, and by relying largely on cross-sectional designs. The independent effects of positive and negative exchanges on both positive and negative affect were examined in a short-term longitudinal study of 277 older adults, using social exchange measures with parallel content and equivalent reliability and validity. In cross-sectional analyses, positive exchanges predicted positive affect, and negative exchanges predicted negative affect. In longitudinal analyses, however, negative exchanges predicted both positive and negative affect, whereas positive exchanges were unrelated to either outcome. The more potent and longer-lasting effects of negative exchanges have important implications for theory and interventions.     

Mommy and me: familiar names help launch babies into speech-stream segmentation

How do infants find the words in the tangle of speech that confronts them? The present study shows that by as early as 6 months of age, infants can already exploit highly familiar words-including, but not limited to, their own names-to segment and recognize adjoining, previously unfamiliar words from fluent speech. The head-turn preference procedure was used to familiarize babies with short passages in which a novel word was preceded by a familiar or a novel name. At test, babies recognized the word that followed the familiar name, but not the word that followed the novel name. This is the youngest age at which infants have been shown capable of segmenting fluent speech. Young infants have a powerful aid available to them for cracking the speech code. Their emerging familiarity with particular words, such as their own and other people's names, can provide initial anchors in the speech stream.     

Psychology in the public sector: addressing the psychological effects of combat in the U.S. Navy

The response of military psychology in times of war or other great public crises may presage the success of the profession in less perilous times. The ability of public-sector psychologists to provide assistance and improve the common welfare during conflict or turmoil is generally followed by an increased demand for psychological services. This likely reflects the success of the psychological response during those crises, and it underscores the fact that psychological consequences of war or disaster require both immediate clinical attention and long-term policy development. The U.S. Navy serves as a model for public-sector psychological service provision. A brief history of Navy psychology is provided, followed by an examination of how Navy psychologists are responding to the issues raised by the current conflict in the Middle East and the problems associated with stigma in the treatment of posttraumatic stress disorder.     

Processing of extrafoveal objects during multiple-object naming

In 3 experiments, the authors investigated the extent to which objects that are about to be named are processed prior to fixation. Participants named pairs or triplets of objects. One of the objects, initially seen extrafoveally (the interloper), was replaced by a different object (the target) during the saccade toward it. The interloper-target pairs were identical or unrelated objects or visually and conceptually unrelated objects with homophonous names (e.g., animal- baseball bat). The mean latencies and gaze durations for the targets were shorter in the identity and homophone conditions than in the unrelated condition. This was true when participants viewed a fixation mark until the interloper appeared and when they fixated on another object and prepared to name it while viewing the interloper. These results imply that objects that are about to be named may undergo far-reaching processing, including access to their names, prior to fixation.     

Aged rats are impaired on an attentional set-shifting task sensitive to medial frontal cortex damage in young rats

Normal aging is associated with disruption of neural systems that subserve different aspects of cognitive function, particularly in the hippocampus and frontal cortex. Abnormalities in hippocampal function have been well investigated in rodent models of aging, but studies of frontal cortex function in aged rodents are few. We tested young (4–5 mo old) and aged (27–28 mo old) male Long-Evans rats on an attentional set-shifting task modified slightly from previous publication. After training on two problems in which the reward was consistently associated with the same stimulus dimension, and a reversal of one problem, a new problem was presented in which the reward was consistently associated with the previously irrelevant stimulus dimension (extradimensional shift [EDS]). Aged rats as a group were significantly impaired on the EDS, although some individual aged rats performed as well as young rats on this phase. In addition, some aged rats were impaired on the reversal, although a group effect did not reach significance in this phase. Impairment in neither reversal nor EDS was associated with impairments in spatial learning in the Morris water maze. Young rats with neurotoxic lesions of medial frontal cortex are also selectively impaired on the EDS. These results indicate that normal aging in rats is associated with impaired medial frontal cortex function. Furthermore, age-related declines in frontal cortex function are independent of those in hippocampal function. These results provide a possible basis for correlating age-related changes in neurobiological markers in frontal cortex with cognitive decline.     

The Roots of Love and Commitment in Childhood

Drawing from her clinical work with children and own childhood reflections, Dr. Lawrence underscores that the earliest sense of a true self is for the infant an experience of a self as worthy of love. This self-image becomes internalized as the infant looks into the mirror of the not too conflicted caregiver. She stresses that love which only can exist in relationship, is a social experience, does organize social experience, outstanding among these being commitments—commitments that bind a person to a course of action and connection. Dr. Lawrence interfaces psychoanalytic wisdom with spiritual references as she describes her work with children and families.     

Underlying Mechanisms Explaining the Link between Differentiation and Romantic Relationship Outcomes

Abstract

Differentiation of self has been associated with positive relationship outcomes, but little has been done to analyze the underlying mechanisms that promote these outcomes for highly differentiated people. Longitudinal data were collected from a sample of university students (N?=?162) and clinically relevant direct and indirect effects between I-position and emotional reactivity, anxious attachment, relationship efficacy, and relationship satisfaction and conflict hostility were analyzed using path analysis. In general, anxious attachment and relationship efficacy mediated the association between differentiation of self and conflict hostility. Clients may benefit from therapists assessing differentiation and attachment, facilitating conversations that contribute to increasing differentiation and attachment, and using both of these constructs as mechanisms to enhance relationships in young adults.     

Thanks to 2010 Reviewers

Abstract

The electronic conductivity, diffusion coefficient and the self-energy in the vicinity of the energy gap of amorphous Si at T=0K have been computed as a function of energy for a fully bonded model of Si. We have used the equation-of-motion method in κ-space to show, for the first time, the probable position and existence of mobility edges. The conductivity rises rapidly away from the mobility edges to take values typical of those found in liquid metals. The behaviour of the self-energy indicates that a resonance phenomenon is responsible for the formation of a gap.     

Determining technology: myopia and dystopia

Throughout its brief history the philosophy of technology has been largely concerned with the debate over the nature of technology. Typically, technology has been viewed as being essentially another term for applied science, the practical application of scientific theory to the material world. In recent years philosophers and cultural critics have characterised technology in a far more problematic fashion, as an authoritarian power with the ability to bring about far-reaching cultural, political and ecological effects. Proponents of the former view are often termed instrumentalists and those of the latter technological determinists. The debate between them revolves around the question of the fact/value distinction, namely whether technology can be deemed to be value-neutral. I argue that employing a phenomenological approach to technology grants us a fresh perspective on the instrumentalism-determinism debate. It enables us to recast the instrumentalist/determinist debate as a debate between technological idealism and materialism, and to ground the instrumentalist and determinist positions in different experiential relations to technology. It also gives us a better grasp of the function of the different critiques of technology, with idealists concerned primarily with the misapplication of technology as a form of knowledge, and materialists with the existential implications of concrete technological relations.     

Do gains in working memory capacity explain the written self-disclosure effect?

Klein and Boals (2001) concluded that expressive writing about negative life events improves health by reducing intrusive thoughts, as measured by the Impact of Events Scale (IES), and thus freeing working memory (WM) capacity. We replicated their WM gain and rejected the possibility that it reflected task practice alone. We extended their work by showing that such WM effects and reductions in self-reported health symptoms can be observed within a short time frame of a week in a normal population of college students and can occur without reductions in IES scores. Two alternative explanations are discussed of how WM gains can be observed in the written self-disclosure effect without reductions in the frequency of intrusive thoughts and avoidance attempts.