Assessing sex differences in behavioural flexibility in an endangered bird species: the Southern ground-hornbill (Bucorvus leadbeateri)

Animal Cognition - Since ecology influences the expression of cognitive traits, intra-specific variation in ecological demands can drive differences in cognition. This is often the case, for...     

Wild skuas can follow human-given behavioural cues when objects resemble natural food

Animal Cognition - The capacity to follow human cues provides animals with information about the environment and can hence offer obvious adaptive benefits. Most studies carried out so far, however,...     

Development and psychometric evaluation of a rapid intimate partner violence perpetration screening tool

Current methods of identifying intimate partner violence (IPV) perpetration rely upon lengthy screening instruments, partner injury, and legal involvement. There exist no viable, brief screening tools to facilitate the rapid and early identification of IPV perpetration. The development of a brief IPV screening tool would reduce participant burden and compensation in research as well as aid in self‐identification and appropriate consultation for treatment. Three samples were recruited and administered an IPV assessment measure. Receiver Operating Characteristic (ROC) curve analyses were used to determine a critical subset of items that could be rapidly administered and used to accurately detect physical IPV perpetrators. A set of four items emerged that were capable of differentiating between partner violent and nonviolent participants in Samples 1 (the Area Under the ROC Curve (AUC) = .95, SE = .02), 2 (AUC = .98, SE =.01), and 3 (AUC = .94, SE = .04). Internal consistency of the screening items was acceptable across samples and the scores on the screening tool were significantly associated in the expected direction with all assessed risk factors for IPV. Initial evaluation of the rapid IPV perpetration screening tool suggests that it may help satisfy the growing need to quickly determine research eligibility and to help college students self‐identify risk, offering objective data upon which to base the decision for follow‐up consultation.

     

When standards are wide of the mark: nonselective superiority and inferiority biases in comparative judgments of objects and concepts

People are frequently required to judge how particular group members measure up against others in their group. According to the local-comparisons-general-standards (LOGE) approach, in these member-to-group comparisons, people fail to use the normatively appropriate local (group) standard and are infelicitously affected by a more general standard (involving instances from outside the judged group). Within positive groups, target group members are judged superior to the other members of the group, and within negative groups, inferior. To date, these nonselective superiority and inferiority biases have been demonstrated solely in judgments about human beings. In 6 experiments, nonselective biases were found in perceptual, affective, and cognitive judgments of nonhuman targets, objects, and concepts, thus supporting a cognitive rather than a social account.     

Identity and Engagement among Political Independents in America

Political behavior among independents has been documented for decades, yet we are left with limited insight into their political engagement. What, if anything, motivates independents to engage in politics? In this study, I apply psychological theories of attitude importance to explain high variation in political‐engagement levels among independents. Using two recent datasets, I find engagement levels are comparable across independents and partisans, yet predictors of their engagement differ substantially. Ideological strength predicts engagement for partisans—but not for independents. Instead, my data show that independents' engagement is best predicted by the importance they place on their independent identity. These data provide evidence that independence is a meaningful political identity and that identity importance is a key to explaining what motivates the independent voter to engage with politics.     

In DeFENCE of the In‐Group Historical Narrative in an Intractable Intergroup Conflict: An Individual‐Difference Perspective

Groups, particularly when immersed in an intractable intergroup conflict, place considerable value on protecting and defending their historical group narrative. However, some group members are more narrative‐protective than others. In Study 1, we introduce a new individual‐difference measure of motivation to achieve a Firmly Entrenched Narrative ClosurE (FENCE) and test it on several Israeli samples (N = 1132). In Study 2 (N = 120), we show that in‐group glorification, right‐wing political orientation, and right‐wing‐authoritarianism, but not attachment to the In‐group, nonspecific need for cognitive closure, or need for cognition, predict FENCE motivation and Behavioral Lack of Openness to Counternarratives (BLOC). In Studies 3 and 4, we show using international (N = 24) and Israeli (N = 78) samples that a belief in the zero‐sum nature of the conflict is related to FENCE and BLOC. In Study 5, we demonstrate that FENCE affects quality of recall of conflict information. The potential merit of FENCE in accounting for the variability among group members in protecting the group narrative is discussed.     

Assessment of apathy in neurological patients using the Apathy Motivation Index caregiver version

Apathy is a common, disabling neuropsychiatric syndrome that occurs across many brain disorders and may be associated with diminished motivation in behavioural, cognitive, emotional and social domains. Assessment is complicated by the variability of symptoms across apathy domains and self-report from patients, which can be misleading due to their lack of insight. Independent evaluation by clinicians also has limitations though if it has to be performed with limited time. Caregiver reports are a viable alternative, but current assessments for them either do not distinguish between different apathy domains or are interview-based and take long to administer. In this study, we developed a brief caregiver questionnaire version of the recently developed Apathy Motivation Index (AMI), which is a self-report tool. We confirmed three apathy factors in this new caregiver measure (AMI-CG) that were also present in the AMI: Behavioural Activation, Emotional Sensitivity and Social Motivation. Furthermore, we validated the scores against more extensive caregiver interviews using the established Lillle apathy rating scale as well as patient self-reports of apathy, measures of depression, anhedonia, cognition, activities of daily living and caregiver burden across four different neurological conditions: Parkinson's disease, Alzheimer's disease, subjective cognitive impairment and limbic encephalitis. The AMI-CG showed good internal reliability, external validity and diagnostic accuracy. It also uncovered cases of social apathy overlooked by traditional instruments. Crucially, patients who under-rated their apathy compared to informants were more likely to have difficulties performing everyday activities and to be a greater burden to caregivers. The findings provide evidence for a multidimensional conceptualization of apathy and an instrument for efficient detection of apathy based on caregiver reports for use in clinical practice.     

Bilateral saccadic eye movements and tactile stimulation,but not auditory stimulation,enhance memory retrieval

Recent research has shown superior memory retrieval when participants make a series of horizontal saccadic eye movements between the memory encoding phase and the retrieval phase compared to participants who do not move their eyes or move their eyes vertically. It has been hypothesized that the rapidly alternating activation of the two hemispheres that is associated with the series of left–right eye movements is critical in causing the enhanced retrieval. This hypothesis predicts a beneficial effect on retrieval of alternating left–right stimulation not only of the visuomotor system, but also of the somatosensory system, both of which have a strict contralateral organization. In contrast, this hypothesis does not predict an effect, or a weaker effect, on retrieval of alternating left–right stimulation of the auditory system, which has a much less lateralized organization. Consistent with these predictions, we replicated the horizontal saccade-induced retrieval enhancement (Experiment 1) and showed that a similar retrieval enhancement occurs after alternating left–right tactile stimulation (Experiment 2). Furthermore, retrieval was not enhanced after alternating left–right auditory stimulation compared to simultaneous bilateral auditory stimulation (Experiment 3). We discuss the possibility that alternating bilateral activation of the left and right hemispheres exerts its effects on memory by increasing the functional connectivity between the two hemispheres. We also discuss the findings in the context of clinical practice, in which bilateral eye movements (EMDR) and auditory stimulation are used in the treatment of post-traumatic stress disorder.     

A review of the evidence for associations between empathy,violence, and animal cruelty

There is clear evidence that cruelty to animals may co-occur with other violent behaviors, such as assault. Animal cruelty, particularly towards domestic pets, tends to occur disproportionately within the wider context of intimate partner violence. A factor that may contribute to the associations between interpersonal violence and animal cruelty is a compromised ability to experience feelings of empathy. The current paper sought to provide an overview of empathy and its relationship to violence, with particular emphasis on attitudes towards animals.     

Some Benefits of Being an Activist: Measuring Activism and Its Role in Psychological Well-Being

Do activists lead happier and more fulfilled lives than the average person? Two online surveys using a sample of college students (N = 341) and a national sample of activists matched with a control group (N = 718) demonstrated that several indicators of activism were positively associated with measures of hedonic, eudaimonic, and social well‐being. Furthermore, in both studies, activists were more likely to be “flourishing” ( Keyes, 2002 ) than were nonactivists. A third study of college students (N = 296) explored the possible causal role of activism by measuring well‐being after subjects either engaged in a brief activist behavior, a brief nonactivist behavior, or no behavior. Although well‐being did not differ substantially between these three groups, the subjects who did the brief activist behavior reported significantly higher levels of subjective vitality than did the subjects who engaged in the nonactivist behavior. Potential mediators of the relationship between activism and well‐being and the usefulness of these findings are discussed.