The effect of severe carotid occlusive disease and its surgical treatment on cognitive functions of the brain

Surgery of a high-grade carotid stenosis is evidence-based stroke prevention. Also cognitive effects are reported after carotid endarterectomy (CEA): both deterioration and improvement, the former attributed to perioperative complications and the latter often to learning effect. By imaging, brain perfusion and diffusion changes were shown in subjects with a high-grade stenosis undergoing CEA. We wanted to find out if the cognition of patients undergoing CEA display postoperative worsening or true improvement in association with findings in serial MR imaging. The patients had a poorer overall cognition than healthy matched controls. The cerebral hemisphere ipsilateral to the stenosis had higher diffusion and more sluggish perfusion leading to perfusion deficits. These asymmetries were abolished by CEA. Postoperatively, the patients showed a trend for cognitive worsening, most often attentional, but over months, the group performance improved similarly to the controls. Still, lower baseline perfusion was associated with a greater cognitive improvement, most clearly in executive functions. Consequently, despite the risk for transient decline, true cognitive benefit by CEA seems possible.     

The perception of scatterplots

Four experiments investigated the perception of correlations from scatterplots. All graphic properties, other than error variance, that have been shown to affect subjective but not objective correlation (r) were held constant. Participants in Experiment 1 ranked 21 scatterplots according to the magnitude of r. In Experiments 2 and 3, participants made yes/no judgments to indicate whether a scatterplot was high (signal) or low (noise). Values of r for signal and noise scatterplots varied across participants. Differences between correlations for signal and for noise scatterplots were constant in r in Experiment 2, and constant in r2 in Experiment 3. Standard deviations of the ranks in Experiment 1 and d' values in Experiments 2 and 3 showed that discriminability increased with the magnitude of r. In Experiment 4, faculty and graduate students in psychology and sociology made point estimates of r for single scatterplots. Estimates were negatively accelerated functions of objective correlation.     

A feasibility study of the systematic evaluation of client outcomes in a voluntary sector counselling agency

There is an increasing demand on voluntary sector counselling agencies to evaluate the effectiveness of their work with clients. A pilot study was carried out in a voluntary sector counselling agency to assess the feasibility of adopting a well‐established evaluation system (CORE) designed to measure client outcomes. The paper describes the issues and complexities involved in introducing such a system, and explores the impact of the evaluation on counsellors, staff and users of the service. It is suggested that evaluation can play an important role within voluntary organisations in enabling counsellors and staff to reflect on their work.     

Automatic stereotypes vs. automatic prejudice: Sorting out the possibilities in the weapon paradigm

Payne (2001) has documented that African-American faces automatically facilitate the categorization of handguns, relative to White faces. We suggest that these provocative results could derive from either the automatic activation of prejudice (negative evaluations) or the automatic activation of stereotypes (both positively and negatively valenced associations). In an extension of Payne’s procedure, we show that African-American faces facilitate the categorization of both handguns and sports-related objects, but not the categorization of insects or fruits. Additionally, both handguns and sports objects are more likely to be miscategorized following a White face prime than an African-American one. These results suggest that when perceivers are attempting to identify objects, automatic stereotypic associations, both positively and negatively valenced ones, are more influential than general negative sentiments towards African-Americans.     

Examining Rape Empathy From the Perspective of the Victim and the Assailant1

Two studies using college student samples were conducted to establish reliability and validity for new scales measuring rape victim empathy and rape perpetrator empathy separately. In Experiment 1, two 13‐item measures of rape empathy were developed. Variables examined for purposes of construct validity included personal sexual assault experience, general empathy, and perceived rape victim responsibility. In Experiment 2, we added 5 new items to each scale. The final scales were two 18‐item measures with high reliability. Variables examined in Experiment 2 included personal sexual assault, general empathy, and acquaintanceship with a victim or a perpetrator. Both studies found gender differences for empathy scores, with women tending to be higher on rape victim empathy, and men tending to be higher on rape perpetrator empathy. Personal sexual experience was related to rape empathy scores. Perceived victim responsibility was negatively correlated with rape victim empathy and positively correlated with rape perpetrator empathy.     

The relationship between intelligence,working memory,academic self-esteem,and academic achievement

Academic achievement is crucial for life and long-term outcomes. The aim of the present study is to examine the joint role of cognitive (intelligence and working memory) and non-cognitive (academic self-esteem) factors in predicting academic achievement (mathematics and reading literacy) in a sample of Italian sixth and eighth graders. The results showed that within the cognitive factors considered, intelligence was the best predictor of achievement. As regards to non-cognitive factors, academic self-esteem was effective at predicting achievement after controlling for cognitive measures. Academic self-esteem was also found to have an indirect effect, mediated by intelligence, on academic achievement. Both theoretical and practical implications of the present results are discussed.     

Religion and cognitive processing of trauma among newly returned US Iraq and Afghanistan veterans

Religion can provide a powerful meaning-making framework that promotes adaptive processing of potentially traumatic events. However, spiritual strain or distress might be associated with maladaptive perceptions of the meaning of possible traumas. These theoretical propositions have yet to be tested in the empirical literature (to our knowledge). This study examined associations between adaptive and maladaptive religious factors – labelled “seeking religious support” and “spiritual distress” and cognitive processing of trauma in a sample of 90 Iraq and Afghanistan Veterans recently returned from deployments. Results indicated that seeking religious support was positively, and spiritual distress was negatively, associated with adaptive processing but neither were linked with maladaptive meanings of trauma in the presence of known covariates (posttraumatic stress, depression, combat exposure, and social support). These findings demonstrate that religious/spiritual beliefs and behaviours may affect how trauma is adaptively processed in the months following war-zone deployments.     

Academic achievement in the Chinese context: the role of goals, strategies, and effort

Previous studies have suggested that Western constructs of academic motivation may operate in different ways in Asian contexts due to differences in the cultural environment. In the present study, the integrative effects of achievement goals, strategy orientations, and effort expenditure on achievement outcomes were examined among 1950 seventh-grade Chinese students in Hong Kong. Participants completed separate questionnaires for mathematics and English. Results for the two subjects were largely similar. There were significant positive relationships between mastery and performance goals, between cooperative and competitive orientations, as well as between understanding and memorizing strategies. Regression analyses further revealed that goals and strategies were highly predictive of effort expenditure, but only goals and effort significantly predicted achievement outcome, with strategies being barely significant. The need to further investigate how Chinese students reconcile the apparently antithetical orientations in learning as well as the effective strategies contributing to their learning is indicated.     

Intertrial inhibition of focused attention in pop-out search

When a visual search for a color oddball is performed, responses to target-present trials are affected by the color of items in immediately preceding target-absent trials, a phenomenon known as the distractor-previewing effect (DPE). Specifically, the color of the items in the target-absent trial suppresses responses to a target of that color in the subsequent trial, even though participants report a target feature uncorrelated with color. We believe that this suppression reflects a transient inhibitory effect on focused attention that biases attention away from items that are of the same color as the items in the target-absent trial. Experiments 1-3 show that the DPE is present only in tasks that require focused attention. Experiments 4A and 4B show that the DPE persists even when target-absent displays are masked. Last, Experiment 5 shows that the DPE emerges as early as within the first 100 msec of a target-present trial and is fully in place by the 250-msec mark.     

Job-seeking and job-acquisition in high school students

We surveyed 225 Year 9 and 10 students at T1 regarding their attitude, social norms, control, experience, plans and intentions to find a part-time job while at school. Of these, 149 did not have a job and were surveyed again four months later about their job-seeking and job outcomes (104 responded at T2). Job-seeking intentions at T1 were associated with past experience, plans and beliefs that getting a job was the right thing to do. Job-seeking at T2 was associated with beliefs about the value of job-seeking. Job interviews attended were related to job-seeking, and job offers were related to interviews attended. Students with higher job-seeking intentions and behaviours differed on most variables from students with lower intentions and behaviours. Students need to be aware of the relationship between job-seeking, interviews and offers, and be provided with strategies that increase their interviews and assist to manage unsuccessful job attempts.