Effects of stress and sex on acquisition and consolidation of human fear conditioning

We examined the relationship between stress hormone (cortisol) release and acquisition and consolidation of conditioned fear learning in healthy adults. Participants underwent acquisition of differential fear conditioning, and consolidation was assessed in a 24-h delayed extinction test. The acquisition phase was immediately followed by an 11-min psychosocial stress period (arithmetic test combined with a public speech). Salivary cortisol was sampled at various time points before and after acquisition and retention of fear conditioning. Results showed two effects of endogenous cortisol. Post-acquisition cortisol correlated with fear acquisition in male but not female participants. In addition, post-acquisition cortisol correlated with consolidation of fear but only in those participants with high cortisol levels. We conclude that in the short term, a robust and sexually dimorphic relationship exists between fear learning and stress hormone levels. For those participants whose fear learning is accompanied by high stress hormone levels, a long-term relationship exists between cortisol release and memory consolidation. These short-term and long-term effects may relate to the differential involvement of mineralocorticoid and glucocorticoid receptor subtypes, respectively. The findings have implications for understanding the role of stress, sex, and hormones in different stages of fear learning and memory.     

Symptoms versus impairment: the case for respecting DSM-IV's Criterion D

Diagnosing ADHD based primarily on symptom reports assumes that the number/frequency of symptoms is tied closely to the impairment imposed on an individual's functioning. That presumed linkage encourages diagnosis more by Diagnostic and Statistical Manual of Mental Disorders (4th ed.) style symptom lists than well-defined, psychometrically sound assessments of impairment. The current study correlated measures reflecting each construct in four separate, large-scale ADHD research samples. Average correlation between symptoms and impairment accounted for less than 10% of variance. Symptoms never predicted more than 25% of the variance in impairment. When an ADHD group was formed according to a measure of current symptoms, the sample size shrunk by 77% when a criterion-based measure of impairment was added. The partial unlinking of symptoms and impairment has implications for decisions about the diagnostic process, research criteria for participant inclusion, prevalence estimates, gender ratios, evaluation of treatment effects, service delivery, and many other issues.     

Automatic activation of categorical and abstract analogical relations in analogical reasoning

We examined activation of concepts during analogical reasoning. Subjects made either analogical judgments or categorical judgments about four-word sets. After each four-word set, they named the ink color of a single word in a modified Stroop task. Words that referred to category relations were primed (as indicated by longer response times on Stroop color naming) subsequent to analogical judgments and categorical judgments. This finding suggests that activation of category concepts plays a fundamental role in analogical thinking. When colored words referred to analogical relations, priming occurred subsequent to analogical judgments, but not to categorical judgments, even though identical four-word stimuli were used for both types of judgments. This finding lends empirical support to the hypothesis that, when people comprehend the analogy between two items, they activate an abstract analogical relation that is distinct from the specific content items that compose the analogy.     

An ethics of expertise based on informed consent

Ethicists widely accept the notion that scientists have moral responsibilities to benefit society at large. The dissemination of scientific information to the public and its political representatives is central to many of the ways in which scientists serve society. Unfortunately, the task of providing information can often give rise to moral quandaries when scientific experts participate in politically charged debates over issues that are fraught with uncertainty. This paper develops a theoretical framework for an “ethics of expertise” (EOE) based on the notion that scientists have responsibilities to provide information in a way that promotes autonomous decision-making on the part of the public and its representatives. Moreover, insofar as the principle of informed consent has developed in biomedical ethics as a way for physicians to promote autonomous decision-making on the part of their patients, this paper suggests that the informed-consent concept may suggest a set of criteria and guidelines that can help scientists to fulfill their similar ethical responsibilities to the public. In order to illustrate how the resulting EOE could provide practical guidance for scientific experts, the paper examines a case study involving the dissemination of information about the low-dose biological effects of toxic chemicals and carcinogens.     

Self-punishment as a regulation strategy in borderline personality disorder

Studies using the Thought Control Questionnaire (TCQ; Wells & Davies, 1994) suggest that the tendency to use self-punishment (e.g., shouting at oneself) in order to control unpleasant internal experiences (e.g., cognitive and emotional) is associated with psychopathology. To evaluate the role of self-punishment in borderline personality disorder (BPD), we first examined whether TCQ scales, including Self-Punishment, were different among adults with BPD (n = 31) when compared to those with other personality disorders (OPD; n = 24), elevated symptoms of major depressive disorder (MDD; n = 24), and healthy controls (n = 105). Findings indicated that Self-Punishment was elevated in the BPD group relative to other groups. Next, Self-Punishment was examined as a potential mediator in the relationship between negative affectivity and BPD symptom severity in all participants. Results indicated that Self-Punishment did not mediate this relationship, but did account for significant variance in BPD symptoms over and above negative affectivity. Implications and future research directions are discussed.     

A national survey of hospital directors' views about the importance of various chaplain roles: differences among disciplines and types of hospitals

A national random sample of hospital directors was asked to rate the importance of seven categories of chaplain roles and functions: 246 nursing directors, 267 social services directors, 307 medical directors, and 611 pastoral care directors. All four groups rated end-of-life care, prayer, and emotional support as being between very important and extremely important. Other roles, including consultation, advocacy, community outreach, and religious services and rituals were rated significantly less important. Significant differences were found across disciplines and hospital settings (general, psychiatric, etc.). Medical directors rated most chaplain roles lower than other directors did, and directors in psychiatric hospitals rated all roles, except religious services/rituals, lower than their counterparts in other types of hospitals. The importance that directors accorded to all the chaplain roles examined was also influenced by their own spirituality and religiosity, as well as the religious affiliation of their institution.     

Compassion fatigue and burnout among Rabbis working as chaplains

Compassion Fatigue, Compassion Satisfaction, and Burnout were studied in a convenience sample of 66 male and female Rabbis who work as chaplains and attended the annual conference of the National Association of Jewish Chaplains (NAJC) in 2002. Although Compassion Fatigue and Burnout were low among the survey participants, both measures were significantly higher among the women in the sample. Compassion Fatigue was also higher among chaplains who were divorced, and it increased with the number of hours per week the chaplains spent working with trauma victims or their families (r = .25, p<.05). Hierarchical multiple regression was performed to determine the influence of six professional and five personal variables on each of the three dependent variables. Four professional variables accounted for 19.5% of the variation and three personal variables accounted for 20.3% of the variation in Compassion Fatigue. Attempts to predict Burnout and Compassion Satisfaction were far less successful. Burnout was predicted by only two variables (i.e. age and years as a Rabbi), which accounted for just 18.4% of the variance in Burnout scores. Age was the only variable found to have a significant effect on Compassion Satisfaction, and its effect was positive. The implications of the findings are discussed.