Hybrid value foraging: How the value of targets shapes human foraging behavior

In hybrid foraging, observers search visual displays for multiple instances of multiple target types. In previous hybrid foraging experiments, although there were multiple types of target, all instances of all targets had the same value. Under such conditions, behavior was well described by the marginal value theorem (MVT). Foragers left the current “patch” for the next patch when the instantaneous rate of collection dropped below their average rate of collection. An observer’s specific target selections were shaped by previous target selections. Observers were biased toward picking another instance of the same target. In the present work, observers forage for instances of four target types whose value and prevalence can vary. If value is kept constant and prevalence manipulated, participants consistently show a preference for the most common targets. Patch-leaving behavior follows MVT. When value is manipulated, observers favor more valuable targets, though individual foraging strategies become more diverse, with some observers favoring the most valuable target types very strongly, sometimes moving to the next patch without collecting any of the less valuable targets.

     

A Cross-Lagged Panel Approach to Understanding Social Support and Chronic Posttraumatic Stress Disorder Symptoms in Veterans: Assessment Modality Matters

Although there is a strong and consistent association between social support and posttraumatic stress disorder (PTSD), the directionality of this association has been debated, with some research indicating that social support protects against PTSD symptoms, whereas other research suggests that PTSD symptoms erode social support. The majority of studies in the literature have been cross-sectional, rendering directionality impossible to determine. Cross-lagged panel models overcome many previous limitations; however, findings from the few studies employing these designs have been mixed, possibly due to methodological differences including self-report versus clinician-administered assessment. The current study used a cross-lagged panel structural equation model to explore the relationship between social support and chronic PTSD symptoms over a 1-year period in a sample of 264 Iraq and Afghanistan veterans assessed several years after trauma exposure. Approximately a third of the sample met criteria for PTSD at the baseline assessment, with veterans’ trauma occurring an average of 6 years prior to baseline. Two separate models were run, with one using PTSD symptoms assessed via self-report and the other using clinician-assessed PTSD symptoms. Excellent model fit was found for both models. Results indicated that the relationship between social support and PTSD symptoms was affected by assessment modality. Whereas the self-report model indicated a bidirectional relationship between social support and PTSD symptoms over time, the clinician-assessed model indicated only that baseline PTSD symptoms predicted social support 1 year later. Results highlight that assessment modality is one factor that likely impacts disparate findings across previous studies. Theoretical and clinical implications of these findings are discussed, with suggestions for the growing body of literature utilizing these designs to dismantle this complex association.     

The Kent Face Matching Test

This study presents the Kent Face Matching Test (KFMT), which comprises 200 same-identity and 20 different-identity pairs of unfamiliar faces. Each face pair consists of a photograph from a student ID card and a high-quality portrait that was taken at least three months later. The test is designed to complement existing resources for face-matching research, by providing a more ecologically valid stimulus set that captures the natural variability that can arise in a person's appearance over time. Two experiments are presented to demonstrate that the KFMT provides a challenging measure of face matching but correlates with established tests. Experiment 1 compares a short version of this test with the optimized Glasgow Face Matching Test (GFMT). In Experiment 2, a longer version of the KFMT, with infrequent identity mismatches, is correlated with performance on the Cambridge Face Memory Test (CFMT) and the Cambridge Face Perception Test (CFPT). The KFMT is freely available for use in face-matching research.     

Fifty states of self-control: A U.S. statewide examination of the initiation and inhibition dimensions of self-regulation

Individual differences in self-control have been shown to reflect two underlying dimensions: initiation and inhibition. We examined the possibility that degrees of self-control might likewise be modeled at a broader social level, similar to other socio-cultural differences that operate at an individual level (e.g., collectivism). To test this notion, we used a variety of mundane behaviors measured at the level of U.S. states to create inhibitory and initiatory indices of self-control at a collective level. We show that statewide levels of initiatory and inhibitory self-control, despite being correlated with one another, exhibit unique patterns of association with a wide range of outcomes, including homicide, suicide, home foreclosures, divorce, and infidelity. This study represents one of the first attempts to model the dimensional structure of self-control at a social level and supports the utility of conceptualizing self-control as an important socio-cultural variable.     

Gender role attitudes,relationship efficacy,and self-disclosure in intimate relationships

Drawing from the intimacy process model and data from 5,042 individuals who remained partnered across Waves 1 and 2 of the German Panel Analysis of Intimate Relationships and Family Dynamics (pairfam), this study examined the contributions of traditional gender role attitudes and relationship efficacy in predicting levels of self-disclosure within an intimate relationship. Independent samples t-tests demonstrated females scored higher than males on self-disclosure and relationship efficacy measures but lower on traditional gender role attitudes. An ordinary least squares regression analysis revealed relationship efficacy was a stronger predictor of self-disclosure compared to traditional gender role attitudes, which were not associated with self-disclosure. The findings suggest attitudes with an interpersonal motivational system may be especially important for setting the intimacy process into motion within an intimate union.     

Examining the factor structure of narrative meaning-making for stressful events and relations with psychological distress

This study examined the underlying factor structure of 15 narrative meaning-making indices for narratives of stressful events, and explored the incremental validity of the narrative factor solution over and above general personality traits in predicting various indices of psychological well-being. Two-hundred and twenty four undergraduates (M_age?=?19.2 years, SD_age?=?2.1; 114 males and 110 females; 67.6% Caucasian, 12.0% East Asian, 7.6% African-American, 4.0% South Asian, 2.2% Hispanic, and 6.7% as mixed or Other origin) wrote about the most traumatic experience in their life, and completed a series of psychological questionnaires. The narratives were coded in 15 ways theoretically derived from the narrative meaning-making literature. A series of exploratory structural equation models indicated that a four-factor solution best approximated the data. The four factors were: positive processing, negative processing, integrative meaning, and structure. All four factors related differentially to indices of well-being over and above traits. There appear to be four distinct, but related, factors of narrative meaning-making for memories of stressful events, which shed light on the nuanced relations with well-being.     

Blameless Guilt: The Case of Carer Guilt and Chronic and Terminal Illness

My ambition in this paper is to provide an account of an unacknowledged example of blameless guilt that, I argue, merits further examination. The example is what I call carer guilt: guilt felt by nurses and family members caring for patients with palliative-care needs. Nurses and carers involved in palliative care often feel guilty about what they perceive as their failure to provide sufficient care for a patient. However, in some cases the guilty carer does not think that he has the capacity to provide sufficient care; he has, in his view, done all he can. These carers cannot legitimately be blamed for failing to meet their own expectations. Yet despite acknowledging their blamelessness, they nonetheless feel guilty. My aims are threefold: first, to explicate the puzzling nature of the carer guilt phenomenon; second, to motivate the need to solve that puzzle; third, to give my own account of blameless guilt that can explain why carers feel guilty despite their blamelessness. In doing so I argue that the guilt experienced by carers is a legitimate case of guilt, and that with the right caveats it can be considered an appropriate response to the progressive deterioration of someone for whom we care.     

CLIMATE CHANGE,LAUDATO SI', CREATION SPIRITUALITY,AND THE NOBILITY OF THE SCIENTIST'S VOCATION

This exploration into spirituality and climate change employs the “four paths” of the creation spirituality tradition. The author recognizes those paths in the rich teachings of Pope Francis’s encyclical, Laudato Si' and applies them in considering the nobility of the scientist's vocation. Premodern thinkers often resisted any split between science and religion. The author then lays out the basic archetypes for recognizing the sacredness of creation, namely, the Cosmic Christ (Christianity); the Buddha Nature (Buddhism); the Image of God (Judaism); the “Primordial Man” (Hinduism), as well as the premodern universal teaching of “God as Beauty.” He addresses the subject of evil which deserves serious attention in the face of the realities posed by climate change and the resistance to addressing them. In the concluding section, the author speaks of a new Order of the Sacred Earth that was launched in fall 2017 to gather persons of whatever spiritual tradition or none to devote themselves to preserving Mother Earth.