On the role of familiarity with units of measurement in categorical accentuation: Tajfel and Wilkes (1963) revisited and replicated

The present article provides evidence for the role of participants' familiarity with units of measurement in categorical accentuation with unidimensional physical estimates. Belgian and American participants estimated the lengths of lines varying in length. Depending on the condition, the lines were or were not systematically associated with categorical labels, and the estimates were made either in inches or in centimeters. Consistent with our predictions, (a) categorical accentuation was higher when the lines were systematically categorized than when they were not, and (b) this effect was stronger when participants reported their estimates in an unfamiliar measurement unit (i.e., Belgian participants using inches, and American participants using centimeters). These findings support the view that people's reliance on categorical information is more likely to emerge given uncertain contexts of judgment. Additionally, they may help explain why researchers have had difficulties replicating the categorical accentuation effect in the past.     

Perfectionism and its relationship with anticipatory processing in social anxiety

Cognitive‐behavioural models suggest that perfectionistic beliefs and anticipatory processing are key maintaining factors of social anxiety. The present study examined the moderating and mediating role that anticipatory processing has on the relationship between perfectionism and social anxiety. The sample consisted of 245 individuals from the general community who completed an online questionnaire package comprising depression, perfectionism, and social anxiety measures. Participants also rated their levels of anticipatory processing in response to vignettes describing an upcoming social interaction and performance situation. Results showed that maladaptive perfectionism and maladaptive anticipatory processing were positively associated with social anxiety. Furthermore, maladaptive anticipatory processes (stagnant deliberation and outcome fantasy) remained significantly and positively associated with social anxiety even after controlling for depression and maladaptive perfectionism, whereas adaptive anticipatory processes (plan rehearsal and problem analysis) were not significantly associated with social anxiety. These findings support current classifications of anticipatory processing in social anxiety. Contrary to predictions, maladaptive anticipatory processing did not moderate the relationship between maladaptive perfectionism and social anxiety. An exploratory analysis indicated that maladaptive anticipatory processing mediated the relationship between maladaptive perfectionism and social anxiety. Implications for therapeutic intervention are discussed.     

Visual variability affects early verb learning

Research demonstrates that within‐category visual variability facilitates noun learning; however, the effect of visual variability on verb learning is unknown. We habituated 24‐month‐old children to a novel verb paired with an animated star‐shaped actor. Across multiple trials, children saw either a single action from an action category (identical actions condition, for example, travelling while repeatedly changing into a circle shape) or multiple actions from that action category (variable actions condition, for example, travelling while changing into a circle shape, then a square shape, then a triangle shape). Four test trials followed habituation. One paired the habituated verb with a new action from the habituated category (e.g., ‘dacking’ + pentagon shape) and one with a completely novel action (e.g., ‘dacking’ + leg movement). The others paired a new verb with a new same‐category action (e.g., ‘keefing’ + pentagon shape), or a completely novel category action (e.g., ‘keefing’ + leg movement). Although all children discriminated novel verb/action pairs, children in the identical actions condition discriminated trials that included the completely novel verb, while children in the variable actions condition discriminated the out‐of‐category action. These data suggest that – as in noun learning – visual variability affects verb learning and children's ability to form action categories.     

Personality and Illness Adaptation in Adults with Type 1 Diabetes: The Intervening Role of Illness Coping and Perceptions

Inspired by the common sense model, the present cross-sectional study examined illness perceptions and coping as intervening mechanisms in the relationship between Big Five personality traits and illness adaptation in adults with Type 1 diabetes. A total of 368 individuals with Type 1 diabetes (18–35 years old) completed questionnaires on personality, diabetes-related problems, illness perceptions, and illness coping. First, Neuroticism, Agreeableness, and Conscientiousness predicted patients’ illness adaptation, above and beyond the effects of sex, age, and illness duration. Second, illness coping was found to be an important mediating mechanism in the relationship between the Big Five and illness adaptation. Finally, perceived consequences and perceived personal control partially mediated the relationship between the Big Five and illness coping. These findings underscore the importance of examining patients’ personality to shed light on their daily functioning and, hence, call for tailored intervention programs which take into account the personality of the individual patient.     

The effects of clozapine on delayed spatial alternation deficits in rats with hippocampal damage

Clozapine is an atypical antipsychotic drug that has been shown to improve spatial memory in some animal models; however its efficacy in reversing spatial memory impairment in rats with hippocampal lesions is unknown. To address this issue, we tested the effects of clozapine on delayed spatial alternation deficits in rats with hippocampal damage in three separate experiments. In each experiment, adult male rats received sham surgery or direct stereotaxic infusions of the excitotoxin, NMDA, into the hippocampus. In the first study, seven days after surgery, the sham control animals received daily saline injections while the lesioned animals were split into two groups that received daily saline or clozapine (2.0 mg/kg, sc) injections. During the fifth week of injections, all animals were tested in a food-motivated delayed spatial alternation task. Saline-treated rats with excitotoxic hippocampal damage displayed significant deficits in delayed spatial alternation. Daily clozapine injections completely reversed this deficit. In a second experiment, it was found that clozapine treatment limited to the testing days only did not improve alternation performance in lesioned rats. Finally, in a third experiment, chronic clozapine treatment did not improve alternation performance in lesioned rats that were pre-trained in the alternation task prior to surgery. These results suggest that chronic, but not acute, clozapine treatment enables rats with hippocampal damage to develop new spatial learning, but can not rescue old spatial learning established prior to damage. These results may have implications for the treatment of cognitive deficits caused by hippocampal dysfunction in disorders such as schizophrenia, Alzheimer's disease, and others.     

The mediating effects of misinterpretation of intrusive thoughts on obsessive-compulsive symptoms

Perfectionism and inflated responsibility have both been identified as risk factors for the development and maintenance of obsessive-compulsive (OC) symptoms. The aim of the present study was to test whether the relationships between these two variables and OC symptoms are mediated by the misinterpretation of intrusive thoughts (MIT). Three hundred and three university students completed the Frost Multidimensional Perfectionism Scale, the Maudsley Obsessional Compulsive Inventory, the Responsibility Attitude Scale, and the Responsibility Interpretations Questionnaire. MIT was found to partially mediate the relationship between responsibility attitudes and OC symptoms. MIT also partially mediated the relationship between concern over mistakes and OC symptoms, even after controlling for responsibility attitudes. Both concern over mistakes and responsibility attitudes were significant predictors of MIT and OC symptoms, but responsibility was the stronger predictor when all of the variables were included in the model. Clinical implications for the treatment of OCD are discussed.     

Effects of regular switching between languages during random number generation

Random number generation is a task that engages working memory and executive processes within the domain of number representation. In the present study we address the role of language in number processing by switching languages during random number generation (numbers 1-9), using German (L1) and English (L2), and alternating L1/L2. Results indicate large correspondence between performance in L1 and L2. In contrast to nonswitching performance, randomization with alternating languages showed a significant increase of omitted responses, whereas the random sequences were less stereotyped, showing significantly less repetition avoidance and cycling behavior. During an intentional switch between languages, errors in language sequence appeared in 23% of responses on the average, independently of the quality of randomization but associated with a clear persistence of L2. These results indicate that random number generation is more closely linked to auditory-phonological representation of numerals than to visual arabic notation.     

Women Behaving Badly: Gender and Aggression in a Military Town, 1653–1781

Magistrates records from the English town of Portsmouth show the towns women to have been exceptionally violent. Women accounted, on average, for just over 31% of all assaults on record for the years 1653 to 1781. We used a combination of quantitative and qualitative methods to compare the fighting styles of men and women and to examine the extent to which these were gendered. Particular attention was paid to levels of violence between pairs of brawlers. The most common form of violence was male-on-male (2,666 cases), followed by female-on-female (1,690), male-on-female (1,675), and female-on-male (299). Of these pairings, female-on-male assaults were the most violent, as measured by the types of weapons used by the aggressors, and female-on-female pairings were the least violent.Funding was provided by grant 410-2000-0467 from the Social Sciences and Humanities Research Council of Canada. The authors are profoundly grateful to the gracious and highly capable staff of Portsmouths Museums and Records Service, including, most notably, Michael Gunton, Diana Gregg, Donna Malcolmson, and Sarah Speller. Special thanks also go to the team of volunteers who transcribed the towns sessions papers, thus greatly facilitating our entry of the same into a database. They were, in alphabetical order, Kate Beatty, Barbara Gower, Ursula Heinrich, Pam Honeysett, George Hothersall, Marjorie Hothersall, Una Lowe, Betty Richardson, Marjorie Ripper, and Brenda Whorton. There was one other volunteer: an inmate at the Kingston Prison just outside Portsmouth. Back in Toronto, several more people assisted in entering the records into a database. They were, in alphabetical order, Joanne Cordingley, James Hewitson, Allyson Lunny, Yvonne Pelletier, and Victoria Vaag.     

You can't always get what you want: effortful control and children's responses to undesirable gifts

This study examined individual differences in children's regulation of emotional expression after receiving desirable and undesirable gifts. Effortful control, the ability to suppress a dominant response in favor of a subdominant one, was measured using a battery of behavioral tasks. Reactions to the gifts were videotaped, and emotional expression was coded. Age predicted effortful control, but not emotional displays. Effortful control predicted similarity of children's displays of positive affect after receiving the two gifts. Specifically, children high in effortful control showed similar amounts of positive affect after receiving the desirable and undesirable gifts, whereas children low in effortful control showed less positive affect after receiving the undesirable gift than after receiving the desirable gift. Results are discussed in terms of temperament and the development of socially appropriate expressive behavior.     

Results from a National Survey of Psychologists in Medical School Settings—2003

Preliminary results are presented from a 2003 collaborative survey of psychologists employed in medical schools and academic health centers. The findings are reported along with comparable data from a similar survey conducted in 1997. There were several noteworthy changes in results from 1997 to 2003. Salaries increased substantially at all ranks, though women’s earnings remain lower than men’s. There were increases in the percentage of respondents who completed their doctorates 20 or more years ago, and in the percentages holding higher academic ranks and having tenure. However, there was a decrease in the absolute number and percentage of psychologists at lower ranks who received their doctorates recently. Overall, the findings indicate that psychologists have established a secure home in medical school settings. Future reports will present more detailed analyses of the 2003 dataset as well as additional comparisons with the 1997 survey data.