From Four‐ to Five‐Dimensionalism

Philosophers have long noticed the similarity of identity over time and identity across worlds. Despite this similarity, analogous views on these matters are not always taken equally seriously. Four‐dimensionalism is one of the most well‐known accounts of identity over time. There is a clear modal analogue of four‐dimensionalism, on which objects are modally extended and their trans‐world identity is a matter of having distinct modal parts located in different possible worlds. Yet this view, which we might call ‘five‐dimensionalism,’ is rarely discussed or defended, in comparison to its temporal counterpart. I argue that five‐dimensionalism is at least as plausible as four‐dimensionalism and deserves serious consideration as an account of trans‐world identity. The strategy is to show that arguments typically used in defence of four‐dimensionalism can be adapted to defend five‐dimensionalism as well. A powerful consideration in favour of four‐dimensionalism is the fact that it provides an elegant and unified solution to a variety of puzzles concerning material coincidence. I show that such puzzles come in equally troubling modal varieties and that five‐dimensionalism provides an equally unified and elegant solution to them. 1     

The Role of Semantic Clustering in Optimal Memory Foraging

Recent studies of semantic memory have investigated two theories of optimal search adopted from the animal foraging literature: Lévy flights and marginal value theorem. Each theory makes different simplifying assumptions and addresses different findings in search behaviors. In this study, an experiment is conducted to test whether clustering in semantic memory may play a role in evidence for both theories. Labeled magnets and a whiteboard were used to elicit spatial representations of semantic knowledge about animals. Category recall sequences from a separate experiment were used to trace search paths over the spatial representations of animal knowledge. Results showed that spatial distances between animal names arranged on the whiteboard were correlated with inter‐response intervals (IRIs) during category recall, and distributions of both dependent measures approximated inverse power laws associated with Lévy flights. In addition, IRIs were relatively shorter when paths first entered animal clusters, and longer when they exited clusters, which is consistent with marginal value theorem. In conclusion, area‐restricted searches over clustered semantic spaces may account for two different patterns of results interpreted as supporting two different theories of optimal memory foraging.     

White Psychologists and African Americans’ Historical Trauma: Implications for Practice

This article reviews and synthesizes literature on the historical trauma of African Americans with an emphasis on how White psychologists can integrate awareness of historical trauma into clinical practice. Research supports that African Americans are affected by White racism in ways that parallel the effects of other interpersonal traumas. How African Americans are affected by racism depends on the individual, although the effects on the individual also occur within a shared cultural context. In addition to negative impacts, the literature also identifies African Americans’ core strengths and coping strategies that have a similarly historical basis. These strengths and coping strategies are discussed in their implications for White psychologists’ role in African Americans’ trauma recovery process.     

Predictors of Living in Precarious Housing Among Immigrants Accessing Housing Support Services

The purpose of this study was to identify factors that explain immigrant housing vulnerability, thereby contributing to the growth of a more substantial knowledge base on the intersection between immigration, housing and homelessness. Administrative data on housing support service recipients (n?=?4168) in Alberta, Canada, were analysed to determine the varied demographic, socio-economic and health-related factors that contribute to living in a precarious housing situation (such as homelessness, couch surfing, staying with friends or family etc.). Logistic regression analysis shows that being an immigrant is a protective factor from living in a precarious housing situation. For the immigrant subsample (n?=?525), logistic regression analysis demonstrates that living in a larger city, having a mental illness and being married were protective factors from living in a precarious housing situation. However, having an addiction and being precariously employed (such as only working part-time, having temporary employment or being unemployed) were risk factors for living in a precarious housing situation. Shared and distinctive vulnerabilities among the immigrant subsample and the full study sample are discussed, along with implications for specific policy and programmes that aim to address the housing needs of immigrants.     

Identity Distress Among Youth Exposed to Natural Disasters: Associations with Level of Exposure,Posttraumatic Stress,and Internalizing Problems

Identity distress involves intense or prolonged upset or worry about personal identity issues including long-term goals, career choice, friendships, sexual orientation and behavior, religion, values and beliefs, and group loyalties. Research suggests that trauma exposure and subsequent posttraumatic stress disorder (PTSD) symptoms may negatively affect identity development and psychological adjustment. However, little is known about their specific associations with identity distress and internalizing problems among disaster-exposed adolescents. This study aimed to examine these associations in a sample of 325 adolescents (60% female; 89% African American) who experienced a major natural disaster and its aftermath. The results indicated that identity distress was positively associated with age, hurricane exposure, PTSD symptoms, and internalizing problems. Linear regression analyses also showed that identity distress was uniquely associated with internalizing symptoms and that there was an indirect effect of hurricane exposure on identity distress via PTSD symptoms. PTSD symptoms moderated the link between identity distress and internalizing symptoms, with a significant positive slope found for youth with more PTSD symptoms. Findings were generally consistent with previous work and predictions, and they add to the extant knowledge about identity distress by providing data on the linkages among disaster exposure, posttraumatic stress, and internalizing problems in adolescents.     

Distinguishing Personality Psychopathology Five (PSY–5) Characteristics Associated With Violent and Nonviolent Juvenile Delinquency

This study examined the relationship between the Minnesota Multiphasic Personality Inventory–Adolescent (MMPI–A) Personality Psychopathology Five (PSY–5) scales and violent and nonviolent juvenile delinquency. Participants were 260 adolescent boys and girls in a forensic setting. Results indicated that Disconstraint (DISC), a marker of behavioral disinhibition and impulsivity, was associated with nonviolent delinquency, whereas Aggressiveness (AGGR), which is characterized by the use of instrumental aggression and interpersonal dominance, was specifically associated with violent delinquency. These findings are consistent with expectations based on empirical findings in the broader personality literature linking the construct of disinhibition with externalizing psychopathology as well as the literature identifying callous-unemotional aggression as a risk factor for violence.     

Psychological Ownership,Territorial Behavior,and Being Perceived as a Team Contributor: The Critical Role of Trust in the Work Environment

In this field study, we develop and test a theory regarding the role of trust in the work environment as a critical condition that determines the relationship between psychological ownership, territoriality, and being perceived as a team contributor. We argue that, dependent upon the context of trust in the work environment, psychological ownership may lead to territorial behaviors of claiming and anticipatory defending and that, dependent upon the context of trust, territorial behavior may lead coworkers to negatively judge the territorial employee as less of a team contributor. A sample of working adults reported on their psychological ownership and territorial behavior toward an important object at work, and a coworker of each provided evaluations on the level of trust in the work environment and rated the focal individual's contributions to the team. Findings suggest that a work environment of trust is a “double‐edged sword”: On the one hand, a high trust environment reduces the territorial behavior associated with psychological ownership; on the other hand, when territorial behavior does occur in high trust environments, coworkers rate the territorial employee's contributions to the team significantly lower. We discuss the nature and management of territorial behavior in light of these findings.     

A Sketch of a Theory of Moral Blameworthiness*

In this paper I sketch an account of moral blame and blameworthiness. I begin by clarifying what I take blame to be and explaining how blameworthiness is to be analyzed in terms of it. I then consider different accounts of the conditions of blameworthiness and, in the end, settle on one according to which a person is blameworthy for φ‐ing just in case, in φ‐ing, she violates one of a particular class of moral requirements governing the attitudes we bear, and our mental orientation, toward people and other objects of significant moral worth. These requirements embody the moral stricture that we accord to these others a sufficient level of respect, one that their moral worth demands. This is a familiar theme which has its roots in P. F. Strawson’s pioneering views on moral responsibility. My development of it leads me to the conclusion that acting wrongly is not a condition of blameworthiness: violating a moral requirement to perform, or refrain from performing, an action is neither necessary nor sufficient for being blameworthy. All we are ever blameworthy for, I will argue, are certain aspects of our mental bearing toward others. We can be said to be blameworthy for our actions only derivatively, in the sense that those actions are the natural manifestations of the things for which we are strictly speaking blameworthy.