A prospective study of some effects of aircraft noise on cognitive performance in schoolchildren

Before the opening of the new Munich International Airport and the termination of the old airport, children near both sites were recruited into aircraft–noise groups (aircraft noise at present or pending) and control groups with no aircraft noise (closely matched for socioeconomic status). A total of 326 children (mean age 5 10.4 years) took part in three data–collection waves, one before and two after the switch–over of the airports. After the switch, long–term memory and reading were impaired in the noise group at the new airport. and improved in the formerly noise–exposed group at the old airport. Short–term memory also improved in the latter group after the old airport was closed. At the new airport, speech perception was impaired in the newly noise–exposed group. Mediational analyses suggest that poorer reading was not mediated by speech perception, and that impaired recall was in part mediated by reading.     

Stability of cognitive vulnerabilities to depression: a short-term prospective multiwave study

The stability of 3 cognitive vulnerabilities--a negative cognitive style, dysfunctional attitudes, and rumination--as well as depressive symptoms as a benchmark were examined to investigate whether cognitive vulnerabilities are stable, enduring risks for depression. A sample of adolescents (6th-10th graders) completed measures of these 3 cognitive vulnerabilities and depressive symptoms every 5 weeks for 4 waves of data across 5 months. Mean-level and differential stability were examined for the sample overall and by age subgroups. A negative cognitive style exhibited mean-level stability, whereas rumination and dysfunctional attitudes showed some mean-level change. Absolute magnitudes of test-retest reliabilities were strong for depressive symptoms (mean r= .70), moderately high for a negative cognitive style (mean r= .52), and more modest for rumination (mean r= .28) and dysfunctional attitudes (mean r= .26). Structural equation modeling showed that primarily enduring processes, but not contextual forces, contributed to the patterning of these test-retest reliabilities over time for a negative cognitive style and dysfunctional attitudes, whereas both enduring and contextual dynamics appeared to underlie the stability for rumination. Theoretical and clinical implications of these findings are discussed.     

Bulimia nervosa: a descriptive and therapeutic study

This study examined a sample of 24 Ss who met strict criteria for a diagnosis of bulimia nervosa. Assessments were made on: (1) demographic characteristics, (2) eating attitudes and behaviour and (3) personality measures. The effectiveness of two types of therapeutic intervention (cognitive-behavioural group therapy vs cognitive-behavioural group therapy plus specific behavioural instruction) was examined in a baseline, therapy intervention, follow-up design.The group was characterized prior to therapy by high N, Depression and Anxiety and low Self-esteem scores compared with control group data. Following therapy, Depression and Anxiety scores were significantly lower and Self-esteem scores higher, whereas N scores remained high. Binge-purging frequencies were significantly reduced in some of the Ss but the reduction could not unequivocally be attributed to the therapeutic interventions. The pattern of results suggested that bulimia nervosa (defined by a binge-purging pattern in association with high neuroticism) should be distinguished from bulimia (defined by a binge pattern not related to purging or high neuroticism) and that DSM-III should be revised to reflect this distinction. A theory is advanced to account for the rapid association of binging and purging in Ss high in neuroticism but not in Ss low in neuroticism.     

Changes in the level and quality of object relations in psychoanalysis: followup of a longitudinal, prospective study

As part of a prospective, longitudinal study of suitability for and outcome of psychoanalysis, 22 patients were evaluated for changes in the level and quality of their object relations. These patients had been accepted for supervised analysis with candidates in training by senior analysts who had diagnosed them as neurotic. The majority of these patients reported difficulties in relationships as at least one of their reasons for originally seeking psychoanalytic treatment. Prior to beginning analysis, each patient was given a battery of psychological tests. One year after the termination of analysis, the test battery was readministered and a followup interview was conducted separately with each patient and analyst. Ratings of change based on patient and analyst interviews and comparisons of psychological tests before and after treatment all showed statistically significant improvement in the level and quality of object relations for this patient group. The results of this study support what is often observed in clinical practice, that psychoanalysis has a positive effect on the level and quality of a patient's object relations.     

The role of cognitive factors in the pathogenesis of obsessive-compulsive symptoms: a prospective study

Cognitive models of obsessive-compulsive disorder (OCD) posit that specific kinds of dysfunctional beliefs (e.g., pertaining to responsibility and the significance of intrusive thoughts) underlie the development of this disorder. The present study was designed to prospectively evaluate whether dysfunctional beliefs thought to underlie OCD act as a specific vulnerability factor in the pathogenesis of obsessive-compulsive symptomatology. Eighty-five individuals were prospectively followed over a period of time thought to be associated with an increased onset of OCD symptoms -- childbirth and the postpartum. The majority of these new mothers and fathers experienced intrusive infant-related thoughts and performed neutralizing behaviors similar to, but less severe than, those observed in OCD. Scores on a measure of dysfunctional beliefs thought to underlie OCD predicted the development of obsessive-compulsive symptoms after controlling for pre-existing OCD symptoms, anxiety, and depression. Dysfunctional beliefs also predicted the severity of checking, washing, and obsessional OCD symptom dimensions, but not neutralizing, ordering, or hoarding symptom dimensions. These data provide evidence for specific dysfunctional beliefs as risk factors in the development of some types of OCD symptoms.     

Apolipoprotein E and cognitive performance: a meta-analysis

The epsilon4 allele of the apolipoprotein E (APOE) gene is a known risk factor for Alzheimer's disease and may also affect cognitive performance in normal aging. Evidence of the presence and magnitude of epsilon4-related cognitive deficits was examined with a meta-analysis of the available literature. Thirty-eight studies were included, and cognitive performance was collapsed into 8 domains. Results indicated significant APOE-epsilon4 group differences for global cognitive functioning, episodic memory, and executive functioning, in favor of non-epsilon4 carriers. In addition, older age and APOE-epsilon4 heterozygosity was associated with smaller epsilon4-related impairments. The meta-analysis results suggest that APOE-epsilon4 genotype does affect cognitive performance in healthy aging, although the influence is relatively small and specific to certain domains of cognitive performance.     

Conduct disorder in children: Challenges,and prospective cognitive behavioural treatments

Conduct disorder in children presents significant challenges in its effects on families, teachers, and care-givers and in its treatment. Cognitive-behavioural therapies are among the better researched treatments for conduct disorder. Cognitive-behavioural therapies may be limited in their effectiveness because they were designed for adolescents rather than children. Child-versions of cognitive-behavioural therapies that train in prosocial behaviours may hold greater promise in the prevention and management of conduct disorder in children. Children with conduct disorder comorbid with other child disorders, and reactive aggression may derive greater benefit from multimodal interventions involving medication and psychosocial interventions.     

The end-of-session message in systemic family therapy: a descriptive study

A retrospective case note review was conducted with the aim of describing the end-of-session messages conveyed during Milan-style systemic family therapy. Fifty consecutive families treated in an adult family clinic were included. A classification of messages was developed; for each type of message the mean number per therapy session was calculated and the rates compared both within and between four systemic categories of family. 'Supportive/engaging' messages were given more frequently than 'hypothesis-related' messages in each systemic category and this difference was most marked in families with grief as the central issue. More 'acknowledgement' messages were used in the 'grief' group than in the 'separation/individuation' group. 'Hypothesis-related' messages were used more often in the 'separation/individuation' group than in the 'grief' group. We discuss possible reasons for the observed patterns and compare different ways in which the message can be conceived and implemented.     

Changes in subject performance during the semester: An empirical investigation

Two experiments were conducted to probe for performance differences between early-semester subjects and late-semester subjects in an introductory psychology subject pool. In Experiment 1A, hypotheses regarding changes in performance included differential effort, changes in subjects’ attention to the task, and changes in subjects’ sensitivity. A signal detection paradigm was used, and 278 subjects were sampled over the course of the semester. No evidence of changes in subject performance was found, in spite of sufficient power to detect relevant patterns of change. The results of a replication (N = 135) were consistent with those of Experiment 1A. Experiment 2 (N = 118) employed a text comprehension task to examine possible differences in subject performance with a more cognitive task. Again, there was no evidence to support the idea that late-semester subjects were performing differently from early-semester subjects.     

Resilience,religiosity and treatment adherence in hemodialysis patients: a prospective study

Resilience and religiosity have received attention as an important process in the experience and management of chronic comorbidities; however, there is no study evaluating resilience in hemodialysis patients and its association with other psychological dimensions or with treatment adherence. This observational prospective study assessed resilience (25 item Wagnild and Young Resilience Scale), religiosity under three dimensions (organizational, non-organizational and intrinsic) using DUREL scale, depressive symptoms (Patient Health Questionnaire-9) and health-related quality of life (Short Form-36 questionnaire). The main outcomes were medication adherence using the Morisky Medication Adherence Scale-8 (MMAR-8) and the missing/shortened dialysis sessions in the following six months. Of 208 patients approached, 202 (97.1%) agreed to participate. One hundred twenty-three patients (60.9%) were males and mean age was 52.8 ± 14.8 years-old. The median time on hemodialysis was 36 months (IQR, 12, 84). 82 (40.6%) patients obtained a MMAS-8 score <6 and were considered as having ‘poor adherence’. Overall, the mean score of medication adherence was low (5.7 ± 2.1). About adherence to hemodialysis sessions, patients missed a total of 234 (1.6%) hemodialysis sessions. Forty-eight patients (23.7%) missed an average of at least three sessions in six months. Regarding adherence to medication, there was no association in the uni- or multivariate analysis between religiosity dimensions and MMAS-8 score. After adjustment, resilience was positively associated with MMAS-8 score (standardized β coefficient .239, p = .016). Organized and intrinsic religiosity were associated with adherence to dialysis sessions (standardized β coefficient .258, p = .004 and .231, p = .026, respectively). Interestingly, opposite to medication adherence, more resilient patients were associated with less adherence to hemodialysis sessions (standardized β coefficient ?.296, p = .001). Religiosity was associated with dialysis adherence but not with medication adherence. Resilience was associated with higher medication adherence but lower adherence to dialysis sessions.     

Schizotypy,cognitive performance,and genetic risk for schizophrenia in a non-clinical population

Schizophrenia risk alleles are expected to mediate effects on cognitive task performance, and aspects of personality including schizotypy, in nonclinical populations. We investigated how 32 of the best-validated schizophrenia risk alleles, singly and as summed genetic risk, were related to measures of schizotypal personality and measures of two aspects of cognitive performance, verbal skills (vocabulary) and visual-spatial skills (mental rotation), in healthy individuals. Summed genetic risk score was not associated with levels of total schizotypy or its three main subscales. Similarly, genotypic variation at none of the individual risk loci was related to cognitive performance measures, after correction for multiple tests. Higher overall genetic risk score was, however, associated with lower performance on the mental rotation test in males, with a broad set of loci contributing to this effect. These results imply that there is a lack of linear, genetically-based continuity connecting schizotypal cognition with the expression of schizophrenia itself, and indicate that, for males, higher genetic risk of schizophrenia exerts negative effects on visual-spatial skills, as measured by mental rotation.     

Changes in verbalizations during sandplay: an empirical study

This is a quantitative study of an 11-year-old boy diagnosed with major depression who in all but one session made a sandplay. A computerized system was used to analyse the written verbalizations on four dimensions of positive and negative: emotions, contracts (psychosocial agreements, relationships, etc.), performance (behaviour) and rewards. It was hypothesized that the verbalizations made by the patient (recorded by the therapist) would become more positive and less negative during the course of therapy. The positive and negative values of the four dimensions were correlated with the session number. This was supported on two (performance & contract) of the four positive dimensions (statistically significant). The hypothesis that the negative dimensions would become less negative was supported on all four dimensions (statistically significant). Thus, six of the eight hypotheses were supported. This uninvestigated area of research illustrates verbal interactions between patient and therapist were an important aspect of sandplay therapy. Through reanalysing the sessions for quantitative content, written recording of direct quotes and observation of behaviour, data was entered into a valid and reliable coding system to quantitatively analyze the verbalizations. This analysis of verbalizations of the patient and observations made by the therapist indicates sandplay therapy is multifaceted.     

The prospect of negotiating: Stress, cognitive appraisal, and performance

Despite a significant literature on the impact of stress on performance in achievement settings, little is known about whether and how stress might matter for would-be negotiators. In two studies, we investigate how bargainers cognitively appraise a looming negotiation, whether its prospect is stressful and what the consequences are for performance. Individuals who appraised a prospective negotiation as a threat experienced more stress ahead of a negotiation, and reached lower quality deals compared to those who had appraised a challenge. Results from a follow-up experiment showed that would-be negotiators who had appraised a threat behaved more passively and were less likely to use tough tactics compared to those who appraised a challenge. Those who appraised a threat also had relatively inaccurate perceptions of their partners’ priorities and interests, which undermined their outcomes. The outcome advantage for those who appraised a challenge was limited to negotiations that contained integrative potential.     

Relationship of cognitive strategy use to prospective memory performance in a diverse sample of nondemented older adults with varying degrees of cognitive complaints and impairment

Although older adults typically have better performance on prospective memory (PM) tasks carried out in naturalistic settings, a paucity of research directly assesses older adults’ use of compensatory strategies on such tasks. The current study investigates external memory strategy use during performance of a clinical PM test that features both short-term (in laboratory) and long-term (out of laboratory) subtasks (i.e., the Royal Prince Alfred Prospective Memory Test – RPA-ProMem. Nondemented, community-dwelling older adults (n = 214; mean age = 80.5; 68.2% female; 39.7% non-white) with mild cognitive impairment, subjective cognitive decline, and healthy controls completed the RPA-ProMem while external strategy use was permitted and recorded. Overall, participants utilized external strategies 41% of the time on the RPA-ProMem. Increased utilization of external memory strategies was significantly associated with better PM performance. Additionally, better performance on executive functioning tasks was associated with increased use of external memory strategies. Results are discussed in relation to how memory strategy use can be enhanced to improve everyday memory ability in older adults at risk for dementia.     

Arctic cognition: a study of cognitive performance in summer and winter at 69°N

Evidence has accumulated over the past 15 years that affect in humans is cyclical. In winter there is a tendency to depression, with remission in summer, and this effect is stronger at higher latitudes. In order to determine whether human cognition is similarly rhythmical, this study investigated the cognitive processes of 100 participants living at 69°N. Participants were tested in summer and winter on a range of cognitive tasks, including verbal memory, attention and simple reaction time tasks. The seasonally counterbalanced design and the very northerly latitude of this study provide optimal conditions for detecting impaired cognitive performance in winter, and the conclusion is negative: of five tasks with seasonal effects, four had disadvantages in summer. Like the menstrual cycle, the circannual cycle appears to influence mood but not cognition. Copyright © 1999 John Wiley & Sons, Ltd.     

Effects of sleep loss on sustained cognitive performance during a command and control simulation

Because of low cognitive demands and infrequent performance assessment, previous sleep-loss studies may have provided conservative estimates of the cognitive deficits that can occur during sustained, intensive, military operations. The research described here addresses the limitations of earlier studies by requiring and measuring performance on a continuous basis in a computerized laboratory environment. During a 54-h period of wakefulness, subjects were required to continuously monitor and act upon information being transmitted over a communication network while their performance on cognitive tests, which were embedded in and distributed around the message traffic, was continuously evaluated. The results show that this cognitively demanding environment produces greater mood and performance decrements as a function of sleep loss than previous, less-demanding studies. The methodology is described in detail, and the implications of the experimental findings are discussed.