Modeling the Indirect Association of Combat Exposure With Anger and Aggression During Combat Deployment: The Moderating Role of Perceived Unit Morale

Anger and aggression are common combat-related behavioral health problems. The impact of combat on anger and aggression appears to be largely attributable to symptoms of posttraumatic stress disorder (PTSD). Factors that moderate the purported pathway from combat to anger and aggression are poorly understood. We examined the conditional direct and indirect associations of combat exposure with self-reported anger and aggression using survey data collected from 592 U.S. Soldiers during a combat deployment in Afghanistan. Unit morale was examined as a moderator between combat exposure and PSTD symptoms, as well as the indirect association of combat exposure with anger and aggression via PTSD symptoms, controlling for depression symptoms. Results indicated that unit morale was negatively correlated with PTSD symptoms and self-reported anger and aggressive behaviors. Perceptions of unit morale moderated the direct association of combat exposure with PTSD symptoms. Unit morale also moderated the indirect association of combat exposure with anger and aggression through PTSD symptoms. Unit morale moderated the association of combat exposure with anger and aggression during combat operations by putatively mitigating the deleterious effect of combat on stress-related symptoms. The impact of policy and leadership on soldier and unit morale should be carefully considered given its protective role during combat operations.     

What are the cognitive costs of racism? A reply to Gendler

Tamar Gendler argues that, for those living in a society in which race is a salient sociological feature, it is impossible to be fully rational: members of such a society must either fail to encode relevant information containing race, or suffer epistemic costs by being implicitly racist. However, I argue that, although Gendler calls attention to a pitfall worthy of study, she fails to conclusively demonstrate that there are epistemic (or cognitive) costs of being racist. Gendler offers three supporting phenomena. First, implicit racists expend cognitive energy repressing their implicit biases. I reply, citing Ellen Bialystok’s research, that constant use of executive functioning can be beneficial. Second, Gendler argues that awareness of a negative stereotype of one’s own race with regard to a given task negatively affects one’s performance of that task. This phenomenon, I argue, demonstrates that those against whom the stigma is directed suffer costs, but it fails to demonstrate that the stigmatizers suffer cognitively. Finally, Gendler argues that racists are less competent when recognizing faces of other races than when recognizing faces of their own race because, in the first instance, they encode the race of the face (taking up cognitive space that could have been used to encode fine-grained distinctions), whereas in the second instance they encode no race. I argue that in-group/out-group categorization rather than racism is the cognitive cost. I conclude that Gendler has failed to demonstrate that there are cognitive costs associated with being a racist.     

On Russell's vulnerability to Russell's paradox

Influenced by G. E. Moore, Russell broke with Idealism towards the end of 1898; but in later years he characterized his meeting Peano in August 1900 as ‘the most important event’ in ‘the most important year in my intellectual life’. While Russell discovered his paradox during his post-Peano period, the question arises whether he was already committed, during his pre-Peano Moorean period, to assumptions from which his paradox may be derived. Peter Hylton has argued that the pre-Peano Russell was thus vulnerable to (at least one version of) Russell's paradox and hence that the paradox exposes a pre-existing difficulty in Russell's Moorean philosophy. Contrary to Hylton, I argue that the Moorean Russell adhered to views which insulated him against the paradox. Further, I argue that Russell became vulnerable to his paradox as a result of changes in his Moorean position occasioned, first, by his acceptance of Cantor's theory of the transfinite, and, second, by his correspondence with Frege. I conclude with some general comments regarding Russell's acceptance of naïve set theory.     

Conceptual overlap between moral norms and anticipated regret in the prediction of intention: Implications for theory of planned behaviour research

Moral norms and anticipated regret are widely used extensions to the theory of planned behaviour, yet there is some evidence to suggest that these constructs may conceptually overlap as predictors of intention. Two health-related behaviours with distinct moral implications (Study 1: organ donation registration, N?=?352 and Study 2: condom usage, N?=?1815) were therefore examined to ascertain whether moral norms and anticipated regret are indeed conceptually distinct. While evidence consistent with conceptual overlap was identified in Study 1, the evidence for such overlap in Study 2 was more ambiguous. In Study 3, a meta-analysis of existing literature revealed that the relationship between moral norms and anticipated regret was moderated by the extent of the moral implications arising from the behaviour under examination. Taken together, these findings suggest that conceptual overlap between moral norms and anticipated regret is more likely to occur among behaviours with obvious moral implications. Researchers wishing to examine the predictive utility of moral norms and anticipated regret among such behaviours would therefore be advised to aggregate these measures to form a composite variable (personal norms).     

Examining the effects of perceived social support on momentary mood and symptom reports in asthma and arthritis patients

Objective: Social support has been linked to beneficial effects on health directly (main effect) and as a buffer to stress. Most research, however, has examined these relationships using global and retrospective assessments of health and stress, which may be subject to recall biases. This study used ambulatory ecological momentary assessment (EMA) methods to test the main and stress-buffering effects of social support on the daily health and well-being of asthma and rheumatoid arthritis (RA) patients.

Design: Community volunteers with asthma (n?=?97) or RA (n?=?31) responded to EMA prompts five times daily for one week.

Main outcomes: Baseline perceived social support was obtained, and then, participants reported mood, stress and symptoms using EMA. Multilevel mixed-modelling examined whether social support predicted mood and symptoms directly or via stress-reducing effects.

Results: Supporting a main effect, more perceived social support predicted decreased negative mood and stress severity. Supporting a stress-buffering effect, more perceived social support resulted in fewer reported symptoms when stress was present.

Conclusion: Results suggest perceived social support directly relates to better ambulatory status and dynamically buffers individuals against the negative effects of stressors, and highlight the importance of studying social support across different temporal and contextual levels.     

Development of decisional balance and self-efficacy measures for adolescent sedentary behaviors

Writing about traumatic events can produce health benefits, yet emotionally non-expressive or cognitively avoidant individuals may be unwilling or unable to express their emotions. This study examined non-expression, cognitive avoidance, response to writing, and subsequent health. As part of a larger study, participants ( N = 71) with asthma or rheumatoid arthritis (RA) wrote about traumatic experiences for 20 min on three consecutive days. Alexithymia, denial, behavioral disengagement, mental disengagement, focus on/venting of emotions, avoidant thoughts, and health status were assessed at baseline, health status again 4 months after writing. Essays were coded for how personal and how emotional they were, and for narrative structure. Non-expression and cognitive avoidance were neither related to how personal or emotional essays were, nor to affective response to writing. High levels of denial or avoidant thoughts predicted less narrative structure. Avoidant thinking marginally predicted health improvements in RA patients. Results suggest that non-expression and cognitive avoidance do not interfere with writing in terms of emotional engagement, but may influence narrative use.     

Resolving the theory of planned behaviour's ‘expectancy-value muddle’ using dimensional salience

The theory of planned behaviour is one of the most widely used models of decision-making in the health literature. Unfortunately, the primary method for assessing the theory's belief-based expectancy-value models results in statistically uninterpretable findings, giving rise to what has become known as the ‘expectancy-value muddle’. Moreover, existing methods for resolving this muddle are associated with various conceptual or practical limitations. This study addresses these issues by identifying and evaluating a parsimonious method for resolving the expectancy-value muddle. Three hundred and nine Australian residents aged 18–24 years rated the expectancy and value of 18 beliefs about posthumous organ donation. Participants also nominated their five most salient beliefs using a dimensional salience approach. Salient beliefs were perceived as being more likely to eventuate than non-salient beliefs, indicating that salient beliefs could be used to signify the expectancy component. The expectancy-value term was therefore represented by summing the value ratings of salient beliefs, an approach that predicted attitude (adjusted R ²?=?0.21) and intention (adjusted R ²?=?0.21). These findings suggest that the dimensional salience approach is a useful method for overcoming the expectancy-value muddle in applied research settings.     

The Contribution of Executive Skills to Reading Comprehension

Although word recognition deficits (WRD) are a known cause of reading comprehension deficits (RCD), other contributions to RCD, including executive function (EF), have not been fully explored. We examined the contribution of EF (working memory and planning), along with attention, decoding, fluency, and vocabulary to reading comprehension in 60 children (including 16 WRD and 10 RCD), ages 9–15 years. After controlling for commonly accepted contributors to reading comprehension (i.e., attention, decoding skills, fluency, and vocabulary), EF continued to make a significant contribution to reading comprehension but not to word recognition skills. These findings highlight the need for consideration of the role of EF in RCD.     

Simultaneous attentional guidance by working-memory and selection history reveals two distinct sources of attention

Recent theories of attention have proposed that selection history is a separate, dissociable source of information that influences attention. The current study sought to investigate the simultaneous involvement of selection history and working-memory on attention during visual search. Experiments 1 and 2 used target feature probability to manipulate selection history and found significant effects of both working-memory and selection history, although working-memory dominated selection history when they cued different locations. Experiment 3 eliminated the contribution of voluntary refreshing of working-memory and replicated the main effects, although selection history became dominant. Using the same methodology, but with reduced probability cue validity, both effects were present in Experiment 4 and did not significantly differ in their contribution to attention. Effects of selection history and working-memory never interacted. These results suggest that selection history and working-memory are separate influences on attention and have little impact on each other. Theoretical implications for models of attention are discussed.