An experimental study of behavioural coping strategies in free-ranging female Barbary macaques (Macaca sylvanus)

A fundamental goal of stress research is to understand how individuals cope with challenges. Studies on a range of vertebrate species suggest that three groups of behaviour-affiliative, aggressive and self-directed behaviours-serve as coping strategies. To date, experimental studies of coping behaviour have tended to be conducted in captive conditions; the limited number of studies in free-ranging or wild settings have been observational in nature. We investigated coping behaviours in free-ranging female Barbary macaques (Macaca sylvanus) at Trentham Monkey Forest, UK, using an experimental playback approach to quantify subjects' responses to mildly aversive threat-grunts. Compared to silent control trials, playbacks of threat-grunts increased aggressive behaviours and one of the two self-directed behaviours examined (self-scratching). No such differences were seen for self-grooming, or for any affiliative behaviour. Elevations in the rate of one measure of aggression, lunging, were positively related to an average measure of adrenocortical activity (median faecal glucocorticoid metabolite levels over the study period). Evidence from females in a variety of Old World monkey species, including Barbary macaques, indicates that affiliative behaviours have an important role in coping with stressful events in the medium to longer term. Our results suggest that, in the short term, female Barbary macaques may use aggressive rather than affiliative behaviours in response to mild stress. These findings highlight the importance of considering how coping mechanisms may vary over time after a stressor, and how coping mechanisms relate to adrenocortical activity. Playback approaches like ours provide a powerful, flexible tool to explore issues such as this in free-ranging and wild animal populations.     

Investigating the interaction between schizotypy, divergent thinking and cannabis use

Cannabis acutely increases schizotypy and chronic use is associated with elevated rates of psychosis. Creative individuals have higher levels of schizotypy, however links between cannabis use, schizotypy and creativity have not been investigated. We investigated the effects of cannabis smoked naturalistically on schizotypy and divergent thinking, a measure of creativity. One hundred and sixty cannabis users were tested on 1 day when sober and another day when intoxicated with cannabis. State and trait measures of both schizotypy and creativity were administered. Quartile splits compared those lowest (n=47) and highest (n=43) in trait creativity. Cannabis increased verbal fluency in low creatives to the same level as that of high creatives. Cannabis increased state psychosis-like symptoms in both groups and the high creativity group were significantly higher in trait schizotypy, but this does not appear to be linked to the verbal fluency change. Acute cannabis use increases divergent thinking as indexed by verbal fluency in low creatives.     

A longitudinal study of friends with benefits relationships

Friends with benefits relationships (FWBRs) uniquely combine friendship with sexual activity but differ from romantic relationships in that they may be less likely to be exclusive or long lasting. A longitudinal analysis of the trajectory of FWBRs is presented, in which participants in FWBRs at Time 1 reported on their relationship outcomes at Time 2 (N = 192). Results demonstrated that a plurality of FWBRs transitioned into having no relationship of any kind at Time 2 (31%). Those who wanted their FWBR to transition into a friendship typically obtained that outcome (59%), whereas those who wanted to transition into a romantic relationship did not (15%). Time 2 relationship status predictors and further implications of FWBR trajectories are discussed.     

A Loss of Judgment: The Dismissal of the Judicial Conscience in Recent Christian Ethics

Christian ethicists have neglected conscience, understood as an individual's moral self‐awareness before a locus of accountability and judgment, over the last few decades. The aim of this essay is to suggest how this neglect came about. I draw on the work of Paul Lehmann and Oliver O'Donovan to illustrate how ethicists in the twentieth century became suspicious of conscience because of its association with the alleged ahistorical individualism of Immanuel Kant's work. I argue that a social‐historicist conception of conscience, such as H. Richard Niebuhr offered, attempts to save conscience from this suspicion. Ironically, however, Stanley Hauerwas's development of Niebuhr's historicist, communitarian approach to conscience, appears to have led to a dismissal of conscience. I conclude with a brief comment about what this dismissal has cost contemporary Christian ethics, namely the Christian tradition's basic commitment to the singularity of an individual's accountability before God.     

Are Reports of Life Event Stress among Suicidal Youth Subject to Cognitive Bias?

Severity of depressive symptoms, hopelessness, and suicidal ideation were examined to determine whether they were significantly associated with the accuracy of suicidal adolescents' ratings of stressful life events. The sample included 130 inpatient adolescents who endorsed suicide‐related behaviors. Stress interviews were administered, and the severity of stressful events was rated separately by adolescents and an independent team. A residualized cognitive bias score was created by regressing adolescents' severity ratings to the independent team's severity ratings of the same events. Depressive symptoms, but not hopelessness or suicidal ideation, were significantly associated with cognitive bias scores. A negative cognitive bias in adolescents' reports of life stress may be present at higher levels of depression relative to minimal levels of depression. Further research on the relations between stress and suicide‐related behaviors is encouraged to include independent ratings of stress severity.