A parametric analysis of errors of commission during discrete-trial training

We investigated the effects of systematic changes in levels of treatment integrity by altering errors of commission during error-correction procedures as part of discrete-trial training. We taught 3 students with autism receptive nonsense shapes under 3 treatment integrity conditions (0%, 50%, or 100% errors of commission). Participants exhibited higher levels of performance during perfect implementation (0% errors). For 2 of the 3 participants, performance was low and showed no differentiation in the remaining conditions. Findings suggest that 50% commission errors may be as detrimental as 100% commission errors on teaching outcomes.     

Social skills in women with Turner Syndrome

The aim of this study was to evaluate the performance of a group of women with Turner Syndrome (TS) in interpersonal situations where several social skills were required, and to compare the results with unaffected sisters. Fifty-two TS females aged 15-35 years and 33 sisters aged 16-43 were evaluated using Del-Prette Social Skills Inventory (SSI) and individual interviews. Thirty mothers to subjects and sisters answered questionnaires. It was found that TS girls' performance in SSI was as good as their sisters' and even better in meeting new people and facing unknown situations (p = 0.020). Older TS women scored better than younger ones, differently from their sisters. There were no significant correlations between total score of TS women and their age at diagnosis, time of follow-up and height z-score. Mothers reported having more problems with TS girls than with sisters. Although TS girls demonstrated having social difficulties, just a few of them spontaneously complained about interpersonal problems in the interview. Results suggest that social difficulties may not cause TS girls major problems nor make them unhappy with their social lives, and/or TS girls may not be able to perceive their own difficulties. Good performance in SSI also suggests that TS girls can identify adequate skills in presented situations and answer in a way to obtain good scores, but they may not necessarily use their skills due to other factors like anxiety and shyness. They may also have a tendency to answer SSI in a way they consider socially desirable, masking their real difficulties.     

Short-term and long-term collaboration benefits on individual recall in younger and older adults

A recent study of younger adults suggests that, compared to repeated individual recall trials, repeated collaborative recall trials produce better individual recall after a short delay (Blumen & Rajaram, 2008). Our study was designed to determine if such collaboration benefits would remain after a one-week delay, in both younger and older adults. Sixty younger (M age = 24.60) and 60 older (M age = 67.35) adults studied a list of words and then completed either two collaborative recall trials followed by two individual recall trials, or four individual recall trials. A five-min delay was inserted between the first three recall trials. The fourth recall trial was administered 1 week later. Collaborative recall was completed in groups of three individuals working together. Both younger and older adults benefitted from repeated collaborative recall trials to a greater extent than repeated individual recall trials, and such collaboration benefits remained after a one-week delay. This is the first demonstration of collaboration benefits on later individual recall at delays as long as 1 week, in both younger and older adults. Findings are discussed within the context of the negative effects of collaboration associated with group memory (collaborative inhibition) and the positive effects of collaboration associated with later individual memory (collaboration benefits).     

Better safe than sorry: simplistic fear-relevant stimuli capture attention

It has been consistently demonstrated that fear-relevant images capture attention preferentially over fear-irrelevant images. Current theory suggests that this faster processing could be mediated by an evolved module that allows certain stimulus features to attract attention automatically, prior to the detailed processing of the image. The present research investigated whether simplified images of fear-relevant stimuli would produce interference with target detection in a visual search task. In Experiment 1, silhouettes and degraded silhouettes of fear-relevant animals produced more interference than did the fear-irrelevant images. Experiment 2, compared the effects of fear-relevant and fear-irrelevant distracters and confirmed that the interference produced by fear-relevant distracters was not an effect of novelty. Experiment 3 suggested that fear-relevant stimuli produced interference regardless of whether participants were instructed as to the content of the images. The three experiments indicate that even very simplistic images of fear-relevant animals can divert attention.     

Influences on Newcomers' Adjustment Tactic Use

In recent years, organizational socialization research has focused increasingly on the tactics that newcomers use to guide their own adjustment. Various subsets of adjustment tactics have been studied, with minimal rationale as to why newcomers would use different behaviors. We present a typology for newcomer adjustment tactics, comprising opportunistic, self‐determined, and shared behaviors, to categorize and integrate all newcomer adjustment tactics identified to date. Next, we propose a model in which tactic use is a function of cost–benefit analyses – on performance, ego, and social dimensions – influenced by individual and contextual factors. This integrates the diverse literatures on socialization, adjustment, information seeking, feedback seeking, and coping. Integrating our initial tactics categorization and the cost–benefit model, we present a robust set of propositions that inform newcomers' perceptions and use of adjustment tactics. We conclude by presenting theoretical and practical implications for newcomer adjustment.     

Attachment dismissal predicts frontal slow-wave ERPs during rejection by unfamiliar peers

Attachment representations are thought to provide a cognitive-affective template, guiding the way individuals interact with unfamiliar social partners. To examine the neural correlates of this process, we sampled event-related potentials (ERPs) during exclusion by unfamiliar peers to differentiate insecure-dismissing from securely attached youth, as indexed by the child attachment interview. Thirteen secure and 10 dismissing 11- to 15-year-olds were ostensibly connected with two peers via the Internet to play a computerized ball-toss game. Actually, peers were computer generated, first distributing the ball evenly, but eventually excluding participants. Afterward children rated their distress. As in previous studies, distress was related to a negative left frontal slow wave (500-900 ms) during rejection, a waveform implicated in negative appraisals and less approach motivation. Though attachment classifications were comparable in frontal ERPs and distress, an attachment-related dismissal dimension predicted a negative left frontal slow wave during rejection, suggesting that high dismissal potentially involves elevated anticipation of rejection. As expected, dismissal and self-reported distress were uncorrelated. Yet, a new approach to quantifying the dissociation between self-reports and rejection-related ERPs revealed that dismissal predicted underreporting of distress relative to ERPs. Our findings imply that evaluations and regulatory strategies linked to attachment generalize to distressing social contexts in early adolescence.     

Topological representations of Post algebras of order ω+ and open theories based on ω+-valued Post logic

Post algebras of order ⁺ as a semantic foundation for ⁺-valued predicate calculi were examined in [5]. In this paper Post spaces of order ⁺ being a modification of Post spaces of order n2 (cf. Traczyk [8], Dwinger [1], Rasiowa [6]) are introduced and Post fields of order ⁺ are defined. A representation theorem for Post algebras of order ⁺ as Post fields of sets is proved. Moreover necessary and sufficient conditions for the existence of representations preserving a given set of infinite joins and infinite meets are established and applied to Lindenbaum-Tarski algebras of elementary theories based on ⁺-valued predicate calculi in order to obtain a topological characterization of open theories.     

Plain Semi-Post algebras as a poset-based generalization of post algebras and their representability

Semi-Post algebras of any type T being a poset have been introduced and investigated in [CR87a], [CR87b]. Plain Semi-Post algebras are in this paper singled out among semi-Post algebras because of their simplicity, greatest similarity with Post algebras as well as their importance in logics for approximation reasoning ([Ra87a], [Ra87b], [RaEp87]). They are pseudo-Boolean algebras generated in a sense by corresponding Boolean algebras and a poset T. Every element has a unique descending representation by means of elements in a corresponding Boolean algebra and primitive Post constants which form a poset T. An axiomatization and another characterization, subalgebras, homomorphisms, congruences determined by special filters and a representability theory of these algebras, connected with that for Boolean algebras, are the subject of this paper.To the memory of Jerzy SupeckiResearch reported here has been supported by Polish Government Grant CPBP 01.01     

Androgyny,depression, and self-esteem in irish homosexual and heterosexual males and females

An examination was made of the following research questions: (a) Do Irish homosexuals and heterosexuals differ in the frequency of their classification in sex-role categories? (b) Is sexual orientation related to psychological adjustment? (c) Is androgyny related to psychological adjustment? Subjects were 112 Irish men and women who were administered Bem's Sex-Role Inventory, Rosenberg's Self-Esteem Scale, Zung's Self-Rating Depression Scale, and a questionnaire. Results indicated that Irish homosexuals were classified more frequently than Irish heterosexuals as androgynous. Homosexuals did not differ from heterosexuals in self-esteem or depression scores. Among these Irish subjects, psychological sex-role category is a more powerful influence on psychological health than actual sexual orientation. It is not whether you are homosexual or heterosexual that affects your psychological health, but how you perceive your own psychological masculinity and femininity.