Evaluation of Potential Kidney Donors with the Personality Assessment Inventory: Normative Data for a Unique Population

Many transplant centers require personality assessment and/or psychiatric clearance prior to allowing an individual to donate a kidney. This is a unique cohort for personality assessment, and there is no normative information available for this population on standardized self-report measures such as the Personality Assessment Inventory (PAI). We evaluated a prospective sample of 434 kidney donor candidates with development of normative T-scores relevant to this specific comparison group. Compared to the original normative group from the PAI manual, potential kidney donors are 5–7 T-score points above the mean on PIM, RXR, DOM, and WRM and 4–6 points below the mean on the majority of the remaining scales. Raw score/T score conversion tables are provided. The normative data provided here is meant to supplement the original normative information and aid psychologists in evaluation of this unique medical population.     

Similarity of rectangles: An analysis of subjective dimensions

Two defining properties of psychological dimensions (intradimensional subtractivity and interdimensional additivity) are introduced and their consequences, formulated in terms of an ordinal dissimilarity scale, are derived. These consequences are investigated using dissimilarity judgments between rectangles to determine which of two alternative dimensional structures area (A) and shape (S), or width (W) and height (H), satisfies additivity and/or subtractivity. The results show that neither dimensional structure is acceptable, although A × S provides a better account for the data of most Ss than does W × H. Tests of relative straightness show that A is the least “curved” of the four attributes. Methodological and substantive implications of the study are discussed.     

Event structure in perception and conception

Events can be understood in terms of their temporal structure. The authors first draw on several bodies of research to construct an analysis of how people use event structure in perception, understanding, planning, and action. Philosophy provides a grounding for the basic units of events and actions. Perceptual psychology provides an analogy to object perception: Like objects, events belong to categories, and, like objects, events have parts. These relationships generate 2 hierarchical organizations for events: taxonomies and partonomies. Event partonomies have been studied by looking at how people segment activity as it happens. Structured representations of events can relate partonomy to goal relationships and causal structure; such representations have been shown to drive narrative comprehension, memory, and planning. Computational models provide insight into how mental representations might be organized and transformed. These different approaches to event structure converge on an explanation of how multiple sources of information interact in event perception and conception.     

Embodied and disembodied cognition: Spatial perspective-taking

Although people can take spatial perspectives different from their own, it is widely assumed that egocentric perspectives are natural and have primacy. Two studies asked respondents to describe the spatial relations between two objects on a table in photographed scenes; in some versions, a person sitting behind the objects was either looking at or reaching for one of the objects. The mere presence of another person in a position to act on the objects induced a good proportion of respondents to describe the spatial relations from that person’s point of view (Experiment 1). When the query about the spatial relations was phrased in terms of action, more respondents took the other’s perspective than their own (Experiment 2). The implication of action elicits spontaneous spatial perspective-taking, seemingly in the service of understanding the other’s actions.     

Factors Predicting Attrition Within a Community Initiated System of Care

We designed this study to elucidate child, family, and service level characteristics that may influence attrition from a continuum of care developed and maintained by a community initiated collaboration of local clinics and agencies. Subjects included 117 children and adolescents referred to the Middlesex County system of care from 1992–1999. Data were collected through a retrospective case review. The strongest predictors of attrition from the system of care both before and after the establishment of an individualized service plan included depressed/isolated symptoms, substance abuse, general risk for psychiatric problems, number of referral reasons and urgency status at program intake. Among youth exiting residential placement, those completing recommended services were more likely to be returned home earlier or within the expected time frame than were dropouts. Our study presents important preliminary findings regarding characteristics related to treatment adherence within a community initiated systems of care.     

Here Today,Gone Tomorrow? Assessing How Timing and Repetition of Scandal Information Affects Candidate Evaluations

Scholars and political consultants alike know that during a campaign even the hint of a scandal has the potential to distract from a candidate's policy messages—or even worse—can have dire consequences on Election Day. But does it matter whether the scandal breaks early as opposed to late in the campaign? And how do citizens respond when the scandal drags on for weeks? This study represents the first effort to shed light on these temporal dynamics. Results reveal that timing affects the immediate impact of scandal information, the rate at which those initial effects decay, and candidate evaluations offered at the campaign's conclusion. Additionally, I develop two competing hypotheses regarding how citizens may process scandal information when it is repeated throughout a campaign. Empirical tests suggest that voters eventually reach a saturation threshold after which additional repetition of scandal information has negligible effects on evaluations unless new details are a prominent feature of ongoing coverage, in which case repetition can extend the negative effects of scandal.     

THREE-DIMENSIONAL BILATERAL SYMMETRY BIAS IN JUDGMENTS OF FIGURAL IDENTITY AND ORIENTATION

Abstract— The two experiments reported explored a bias toward symmetry in judging identity and orientation of indeterminate two-dimensional shapes. Subjects viewed symmetric and asymmetric filled, random polygons and described, "what each figure looks like" and its orientation. Viewers almost universally interpreted the shapes as silhouettes of bilaterally symmetric three-dimensional (3-D) objects. This assumption of 3-D symmetry tended to constrain perceived vantage of the identified objects such that symmetric shapes were interpreted as straight-on views, and asymmetric shapes as profile or oblique views. Because most salient objects in the world are bilaterally symmetric, these findings are consistent with the view that assuming 3-D symmetry can be a robust heuristic for constraining orientation when identifying objects from indeterminate patterns.     

Perspective taking promotes action understanding and learning

People often learn actions by watching others. The authors propose and test the hypothesis that perspective taking promotes encoding a hierarchical representation of an actor's goals and subgoals-a key process for observational learning. Observers segmented videos of an object assembly task into coarse and fine action units. They described what happened in each unit from either the actor's, their own, or another observer's perspective and later performed the assembly task themselves. Participants who described the task from the actor's perspective encoded actions more hierarchically during observation and learned the task better.