A new approach to surface photovoltage measurements on hydrogenated microcrystalline silicon layers

A new approach to the surface photovoltage method is demonstrated on thick undoped microcrystalline silicon films grown on different substrates. The model, which includes top as well as bottom space-charge regions, gives a good picture of rather complex experiments and allows good fitting of theoretical curves to experimental results. This method gives us not only the diffusion length of minority carriers but also information on the existence and properties of the space-charge regions in the sample and the results are verified by comparison with the standard procedure.     

Nanocracks at grain boundaries in nanocrystalline materials

A theoretical model is proposed to describe the generation and evolution of nanoscale cracks (nanocracks) in strained nanocrystalline materials. In the framework of the model, the nanocracks are nucleated and grow along grain boundaries, changing the direction of their growth at triple junctions.     

Religion,Spirituality, and Marriage and Family Therapy: A Study of Family Therapists' Beliefs about the Appropriateness of Addressing Religious and Spiritual Issues in Therapy

For many years the literature in the field of family therapy was silent as to the religious and spiritual aspects of clients' lives. During the past five years, however, many voices have come forth calling attention to the importance of bringing spirituality and religion into our conversations with clients. The result of these new voices has been a significant increase in attention to spirituality in journal articles, books, and presentations at national conferences. While there appears to be a strong movement in favor of bringing spirituality and religion into the therapy room, there have been no published studies in marriage and family therapy journals that explore marriage and family therapists' beliefs about the appropriateness of addressing spiritual issues in therapy. The purpose of this study was to fill this gap in the literature by examining the beliefs of a random sample of clinical members of AAMFT in respect to this issue.     

Reduced specificity of autobiographical memory as a moderator of the relationship between daily hassles and depression

Autobiographical memory biases are potential cognitive vulnerability factors for depression, with recent research highlighting the potential importance of accompanying high levels of life stress. Using a prospective design, the current study examined the role of autobiographical memory performance, both reduced specificity and propensity towards categoric memories, as moderators of the relationship between life stress and depression in a non-clinical college sample. Findings suggest that an increased propensity towards categoric recall emerged as a vulnerability factor for future depressive symptoms, with this vulnerability not being dependent upon the presence of high levels of life stress. In contrast, while reduced autobiographical memory specificity did not emerge as a vulnerability factor alone, it did emerge as a moderator of the relationship between chronic daily hassles and depression. These findings highlight the potential importance of both propensity towards categoric recall and reduced specificity of autobiographical memory as vulnerability factors for the experience of future depressive symptoms.     

The effects of cue modality on the quality of personal memories retrieved

We investigated the effect of cue modality on the specificity, speed, vividness, and age of autobiographical memory retrieval. Cues were presented as either an odour, a visual image, or a word label. Odour-cued memories were older, more likely to be categoric, and were slower to be retrieved. Few gender differences were found although females reported more vivid memories than males. We suggest that cue modality directly affects retrieval processes; odour cues are more likely to initiate a perceptual search strategy, in contrast to memories cued by visual images and words, which are usually conceptually/verbally mediated.     

Assessment of Repeated Relational Patterns for Individual Cases Using the SASB-Based Intrex Questionnaire

Repeated interpersonal patterns are central to case conceptualization and treatment planning in interpersonal and attachment-based approaches to therapy. In this study, raters (133 college students, 165 inpatients) provided data on the Intrex questionnaire (Benjamin, 2000 Benjamin, L. S. 2000. Intrex user's manual, Salt Lake City: University of Utah.  [Google Scholar]) about self-treatment, relationship with a significant other, and remembered interactions with parents in childhood. Within-subject profiles were inspected for precise behavioral matches conforming to 3 “copy process” (CP) patterns: identification (behaving like an important other), recapitulation (behaving as if the other person is still present and in charge), and introjection (treating the self the way another did). We observed CP evidence in most individual ratings. Consistent with expectation, nonclinical raters tended to copy a securely attached pattern of affiliation, low hostility, and moderate degrees of enmeshment and differentiation. Only patients copied maladaptive behavior at greater than base rate expectation. We discuss implications and provide recommendations for use of Intrex in individual assessment of CP.     

Paranoia and Power Anxiety

Several previous studies of paranoid schizophrenia have provided only scattered support for Freud's notion that homosexual wishes and fears are the root of the difficulty. The present study was designed as a partial test of the broader theory that paranoid schizophrenia in men involves severe anxiety over aggression or assertion. The subjects were men and women in three categories: paranoid schizophrenic, nonparanoid schizophrenic, and people without any history of psychiatric trouble. Using a set of TAT cards portraying various situations of anger and aggression, it was found, as predicted, that paranoid schizophrenic men, and only paranoid schizophrenic men, show a defensive response. These findings are discussed in the context of traditional gender roles and other evidence about the paranoid style.     

Representational momentum in children born preterm and at term

The term representational momentum (RM) refers to the idea that our memory representations for moving objects incorporate information about movement – a fact that can lead us to make errors when judging an object’s location (the RM effect). In this study, we explored the RM effect in a sample of children born very prematurely and a sample born at term. Because preterm children are known to be at risk for problems with motion perception, we anticipated that they would show a weaker or absent RM effect. This prediction was confirmed. In addition, we found that, in both samples of children, 5–6 year olds showed a reduced RM effect compared to 7–9 year olds. These results demonstrate that the ability to represent motion information in memory shows continued development over this age range, and may help to elucidate factors contributing to problems with fine and gross motor planning and execution that have been observed in the preterm population. We propose that problems affecting the formation, maintenance, or use of predictive models, or motion extrapolation skills, may have cascading effects on the development of other abilities.     

Copy and recall performance of 6-8-year-old children after standard vs. Step-by-step administration of the Rey-Osterrieth complex figure.

The Rey-Osterrieth Complex Figure (ROCF; Rey 1941; Osterrieth, 1944) is frequently used in the neuropsychological assessment of children and adults. The present study was designed, in part, to examine the impact of providing organizational scaffolding to young children being tested with the ROCF. To this end, 6-, 7-, and 8-year-old children were administered the test either in the standard fashion, or using a format in which the 18 key elements of the figure were introduced sequentially. Participants included 132 children who were randomly assigned to the standard or step-by-step administration groups. Significantly higher accuracy and organization scores for both copy and recall were seen with the step-by-step format than with the standard format, even though children in the step-by-step condition took less time to execute their drawings. Retention of encoded information was not affected by age or testing format. The fact that 6-year-olds in the step-by-step condition performed as well as, or better than, 8-year-olds in the standard condition suggests that the primary problem young children experience with the ROCF lies with organizational strategy formation. Advantages of using the Step-by-step ROCF in clinical practice are discussed.     

Error-monitoring ability predicts daily stress regulation

ABSTRACT— This study examined whether individual differences in error-related self-regulation predict emotion regulation in daily life, as suggested by a common-systems view of cognitive and emotional self-regulation. Participants ( N = 47) completed a Stroop task, from which error-related brain potentials and behavioral measures of error correction were computed. Participants subsequently reported on daily stressors and anxiety over a 2-week period. As predicted by the common-systems view, a physiological marker of error monitoring and a behavioral measure of error correction predicted emotion regulation in daily life. Specifically, participants higher in cognitive control, as assessed neurally and behaviorally, were less reactive to stress in daily life. The results support the notion that cognitive control and emotion regulation depend on common or interacting systems.