Cognitive discernible factors between schizophrenia and schizoaffective disorder

BACKGROUND: Schizophrenia (SZ) and schizoaffective disorders (SA) are associated with cognitive deficits. Generally, a schizoaffective diagnosis is associated with better prognosis on the level of social integration. It is also well established that cognition is an important factor for good social outcome in schizophrenia. We hypothesized that, although patients suffering from SA share symptoms with SZ, they can be differentiated on the basis of neurocognitive function and that SA perform better in several domains. METHOD: Performances of two groups SA (N = 13) and SZ (N = 44) were compared on several visual-motor tasks using CANTAB [Motor Screening (MOT), Reaction Time (RTI), Paired Associates Learning Task (PAL), and Stockings of Cambridge items (SOC)]. The two groups were matched for symptom severity. ANOVA with repeated measures was employed to determine whether any difference in cognitive scores during a 2-year period was significantly related to the diagnostic status. RESULTS: A significant and durable difference was observed between SZ and SA on motor screening and explicit memory tests where SA performed better. CONCLUSION: Neurocognitive tests may be relevant for distinguishing schizoaffective from schizophrenia, chiefly via tests tapping into visuo-spatial and visuo-motor coordination abilities (e.g., paired associated learning and motor screening).     

The greening of engineers: A cross-cultural experience

Experience with a group of mechanical engineering seniors at the University of Colorado led to an informal experiment with engineering students in India. An attempt was made to qualitatively gauge the students’ ability to appreciate a worldview different from the standard engineering worldview—that of a mechanical universe. Qualitative differences between organic and mechanical systems were used as a point of discussion. Both groups were found to exhibit distinct thought and behavior patterns which provide important clues for sensitizing engineers to environmental issues in future educational initiatives. Cross-cultural and global dimensions of these initiatives are discussed.     

Memory and consciousness: trace distinctiveness in memory retrievals

The aim of this article was to provide experimental evidence that classical dissociation between levels of consciousness associated with memory retrieval (i.e., implicit or explicit) can be explained in terms of task dependency and distinctiveness of traces. In our study phase, we manipulated the level of isolation (partial vs. global) of the memory trace by means of an isolation paradigm (isolated words among non-isolated words). We then tested these two types of isolation in a series of tasks of increasing complexity: a lexical decision task, a recognition task, and a free recall task. The main result of this study was that distinctiveness effects were observed as a function of the type of isolation (level of isolation) and the nature of the task. We concluded that trace distinctiveness improves subsequent access to the trace, while the level of trace distinctiveness also appears to determine the possibility of conscious or explicit retrieval.     

Comparison of dysfunctional attitudes and social adjustment among infertile employed and unemployed women in Iran

This study aims to compare dysfunctional attitudes and social adjustment in infertile employed and unemployed females. Due to the stresses of infertility, infertile females are faced with a variety of sexual and psychological problems, as well as dysfunctional attitudes that can lead to depression. Moreover, infertility problems provoke women into maladjustment and inadvertent corruption of relationships. In this regard, our goal is to consider the effects of employment in conjunction with education on dysfunctional attitudes and social adjustment among infertile women in Iran. In this work, we employed the survey method. We recruited 240 infertile women, utilizing the cluster random sampling method. These women filled out the Dysfunctional Attitudes Scale and the social adjustment part of the California Test of Personality. Next, multivariate analysis of variance was performed to test the relationship of employment status and education with dysfunctional attitudes and social adjustment. Our results indicated that dysfunctional attitudes were far more prevalent in infertile unemployed women than in infertile employed women. Also, social adjustment was better in infertile employed women than in infertile unemployed women. It was shown that education level alone does not have significant effect on dysfunctional attitudes and social adjustment. However, we demonstrated that the employment status of infertile women in conjunction with their education level significantly affects the two dimensions of dysfunctional attitudes (relationships, entitlements) and has insignificant effects on social adjustment. It was revealed that in employed infertile women in Iran, the higher education level, the less dysfunctional were attitudes in relationships and entitlements, whereas in unemployed infertile women, those with a college degree had the least and those with master's or higher degrees had the most dysfunctional attitudes in terms of relationships and entitlements.     

Muslim Discrimination: Evidence From Two Lost‐Letter Experiments

Since the 9/11 terrorist attacks, there has been considerable concern about whether Muslims living in Western countries are targets of prejudice. A considerable amount of survey‐based evidence suggests that Muslims are victims of discrimination. This paper tested this hypothesis. Two lost‐letter experiments were conducted to test whether the difference in returned letters would be attributable to whether the addressee was Muslim or Swedish. The results show that Muslims receive far fewer letters than do Swedes. However, this discrimination only appears when the lost letters contain money; in which case, the finder gains by not posting the letter.     

Perfectionism, anger, and anger rumination

Anger and anger rumination are considered to be detrimental to both physical and psychological well being. Furthermore, perfectionism, as a personality construct, seems to be related to various types of maladjustment. Whereas perfectionism has been characterized as being positive when an individual derives pleasure from striving for excellence yet recognizes and accepts individual limitations, it is deemed negative when the individual has unrealistic expectations and is never satisfied with his or her performance. The present study examined whether positive and negative perfectionism was associated with anger and anger rumination. The Farsi version of the Positive and Negative Perfectionism Scale and the Farsi version of the Anger Rumination Scale, as well as Spielberger's State-Trait Anger Scale were completed by 384 Iranian students. Results showed that anger and anger rumination were, as expected, associated negatively with positive perfectionism and associated positively with negative perfectionism. Positive perfectionism enables individuals to strive for success in a flexible manner and, thus, to experience satisfaction and pleasure rather than dissatisfaction, frustration, and anger. Conversely, negative perfectionism makes individuals vulnerable to emotional distress such as predisposition to experience anger and anger rumination through setting high standards for performance, overgeneralization of perceived failures, negative self-evaluation, self-blame, and measuring self-worth in terms of unachievable goals of accomplishment and productivity. Hence, perfectionism may be regarded as having both adaptive and maladaptive aspects with regard to health.     

How is phonological processing related to individual differences in children’s arithmetic skills?

While there is evidence for an association between the development of reading and arithmetic, the precise locus of this relationship remains to be determined. Findings from cognitive neuroscience research that point to shared neural correlates for phonological processing and arithmetic as well as recent behavioral evidence led to the present hypothesis that there exists a highly specific association between phonological awareness and single‐digit arithmetic with relatively small problem sizes. The present study examined this association in 37 typically developing fourth and fifth grade children. Regression analyses revealed that phonological awareness was specifically and uniquely related to arithmetic problems with a small but not large problem size. Further analysis indicated that problems with a high probability of being solved by retrieval, but not those typically associated with procedural problem‐solving strategies, are correlated with phonological awareness. The specific association between phonological awareness and arithmetic problems with a small problem size and those for which a retrieval strategy is most common was maintained even after controlling for general reading ability and phonological short‐term memory. The present findings indicate that the quality of children’s long‐term phonological representations mediates individual differences in single‐digit arithmetic, suggesting that more distinct long‐term phonological representations are related to more efficient arithmetic fact retrieval.     

Some Reflections on William Lane Craig’s Critique of Islam

William Lane Craig has recently formulated a set of arguments that aim to undermine the rationality of Islamic theism. This paper will consider seven arguments that Craig deploys against Muslim belief. The seven arguments can be summarised as follows: (1) the Quran makes an egregious historical error by denying the crucifixion of Jesus; (2) the Quran contains legendary stories about Jesus; (3) the Quran is mistaken about the self‐understanding of Jesus; (4) the Quran misunderstands the Trinity; (5) the Islamic concept of God is morally deficient; (6) the Islamic concept of God is less plausible than a Trinitarian concept of God; and (7) the Muslim doctrine of salvation compromises God’s holiness and proves to be unattainable. I contend that Craig’s arguments, when examined closely, do not undermine the rationality of Islamic theism.     

Trust and trustworthiness in a sequential bargaining game

We use a two‐person extensive form bargaining game to explore individuals' trusting and reciprocal behavior and how those relate to their scores on a trust survey. In keeping with prior research, we find that the ‘self‐interested’ outcome is rejected by a majority of individuals. People who score high on the trust survey are both trusting and are also trustworthy, in that they reciprocate others' trust. But people with low‐trust scores often exhibit trust but are not trustworthy. These ‘inconsistent trusters’ seem to be interested in exploiting the trust and trustworthiness of others in increasing their own payoff. Copyright © 2003 John Wiley & Sons, Ltd.     

The use of behavioral skills training to improve staff performance of discrete trial training

Well‐trained staff are a prerequisite for successful implementation of treatment plans when working in human service contexts. The high rate of turnover makes the use of efficient and effective staff training all the more important. Previous research has used behavioral skills training to train teachers in correct implementation of discrete trial training of children with autism. They showed that a brief 10‐min procedure could effectively train staff and result in improved performance. The current study elaborated on previous work by using participants without prior exposure to the method, including treatment integrity data and testing for maintenance 1 month after training ended. The mean percentage of correct teaching responses for the three participants increased from 70%, 58%, and 66% during baseline to 97%, 96%, and 99%, respectively, following training. Results indicated that the training package was effective and the results were maintained 30 days later.