The role of the locus coeruleus in mediating the attentional blink: a neurocomputational theory

The attentional blink refers to the transient impairment in perceiving the 2nd of 2 targets presented in close temporal proximity. In this article, the authors propose a neurobiological mechanism for this effect. The authors extend a recently developed computational model of the potentiating influence of the locus coeruleus-norepinephrine system on information processing and hypothesize that a refractoriness in the function of this system may account for the attentional blink. The model accurately simulates the time course of the attentional blink, including Lag 1 sparing. The theory also offers an account of the close relationship of the attentional blink to the electrophysiological P3 component. The authors report results from two behavioral experiments that support a critical prediction of their theory regarding the time course of Lag 1 sparing. Finally, the relationship between the authors' neurocomputational theory and existing cognitive theories of the attentional blink is discussed.     

Measuring adult attachment: a construct validation of two self-report instruments

This study reports the Swedish construct validation of two translated attachment style scales. The factor structure of the attachment construct was investigated via exploratory and confirmatory factor analyses of attachment scores from 515 students of a Swedish university. Results supported the expected two-factor solution, but found a three-factor solution to be a viable alternative. In addition, the attachment scales were compared with the Big Five personality inventory (NEO-PI), using a sample of 87 Swedish students, and found to have expected correlation to this scale.     

Trichotillomania (hair pulling) in toddlers

Although the clinical diagnosis of trichotillomania has been observed for more than a century, not until the last decade has there been a focus on this diagnosis in early childhood. This small case series focuses on the clinical evaluation of 10 toddlers, average of 26 mo., presenting at a specialty child and adolescent psychiatry clinic with hair pulling. Authors suggest that hair pulling in this age group might better be conceptualized as an anxiety disorder.     

Invisible overtures: fears of rejection and the signal amplification bias

Four studies demonstrated that fears of rejection prompt individuals to exhibit a signal amplification bias, whereby they perceive that their overtures communicate more romantic interest to potential partners than is actually the case. The link between rejection anxieties and the bias was evident regardless of whether fears of rejection were assessed in terms of chronic attachment anxiety or were induced by reflection on a previous rejection experience. Mediation analyses suggested that the bias stems in part from an expected-augmenting process, whereby persons with strong fears of rejection incorrectly assume that the recipient of their overtures will take their inhibitions into account when interpreting their behavior. Implications for understanding the link between attachment anxiety and loneliness and for designing social skills interventions are discussed.     

Effect of therapist's title on perceived competence

A videotaped segment of a therapist and student/client was shown to groups of male and female undergraduates under four conditions. One group saw the tape with the title "Doctor (the therapist's actual name was used) and Client" superimposed at the bottom. The second group saw the same tape with "Mr. (blank) Client" superimposed, the third group had "Timothy (blank) and Client," while the fourth group had no title at the bottom. The 204 students rated the therapist on 11 variables. Analysis showed no effect for title and no interaction. Men rated the therapist higher on nine of the 11 variables, than did women.     

The timing of psychosocial changes in women's lives: the years 25 to 45

Sixty women, aged 30, 35, 40, and 45, participated in a retrospective interview concerning psychosocial changes in their adult lives. Subjects' responses provided self-report data concerning specific psychosocial changes, and judges who read the interview protocols provided independent ratings of major psychosocial transitions. The distributions of self-reported changes and rated transitions across both chronological age and family cycle phases were examined statistically. Rated transitions were found to be reliably related to chronological age but not to family cycle phase. Specifically, 78% of the subjects manifested a major transition commencing between ages 27 and 30. That transition was characterized initially by personal disruption, followed by reassessment and finally by increased psychological well-being. Both chronological age and family cycle phase were reliably related to a variety of self-reported changes. The implications for conceptions of adult developmental changes are discussed.     

The role of prior context in the comprehension of abstract and concrete sentences

Summary In two experiments the hypothesis was tested that abstract sentences become as easy to understand as concrete sentences when given appropriate prior context. Paragraph contexts and sentences followed by a comprehension question were presented in a speeded reading task. The results showed that the abstract sentences remained significantly more difficult to process than the concrete sentences in both experiments. The hypothesis that the concreteness effect is a function of differential context availability was therefore not supported. It was proposed that lexical differences and/or differences in ease of propositional integration may underlie the effect.     

The effects of interactive staff training on staff programing and patient aggression in a psychiatric inpatient ward

Interactive staff training (IST) uses principles of organizational psychology to help line-level staff members design and implement social learning programs for severely mentally ill inpatients. IST is a training package that includes assessment of staff perceptions regarding programatic needs, selection of appropriate social learning strategies to meet these needs, appointment of a program committee from within the ward to champion development of the social learning strategy, and participative decision making about aspects of the social learning strategy. Staff on an extended care ward at a state hospital participated in IST for 15 months as part of a pilot study of its effects. Ongoing examination of ward programing showed that IST significantly increased staff and patient participation in rehabilitation programing and decreased the rate of physical restraints and aggression-related. Changes in staff attitudes about rehabilitation programing were noted on a subsample of IST participants. Implications for more controlled research into IST are discussed.     

DOES NATURE NEED TO BE REDEEMED?

Abstract. In the light of evolutionary biology, the biblical idea that nature fell with the coming of human sin is incredible. Biblical writers, classical theologians, and contemporary biologists are ambivalent about nature, finding in natural history both a remarkable genesis of life and also much travail and suffering. Earth is a land of promise, and there is the conservation, or redemption, of life in the midst of its perpetual perishing. Life is perennially a struggling through to something higher. In that sense even natural history is cruciform, though human sinfulness introduces novel tragedy. Humans now threaten creation; nature is at more peril than ever before.