An ethical framework for the responsible management of pregnant patients in a medical disaster

The ethics of managing obstetric patients in medical disasters poses ethical challenges that are unique in comparison to other disaster patients, because the medical needs of two patients--the pregnant patient and the fetal patient--must be considered. We provide an ethical framework for doing so. We base the framework on the justice-based prevention of exploitation of populations of patients, both obstetric and non-obstetric, in medical disasters. We use the concept of exploitation to identify a spectrum from ethically acceptable, to ethically challenging, to ethically unacceptable, management of obstetric patients in medical disasters. We also address the ethics of the care of obstetric and neonatal patients when the resources of a hospital are completely overwhelmed in a large-scale medical disaster.     

The fundamental need to belong: on the distinction between growth and deficit-reduction orientations

The need for belongingness (the universal need to form and maintain positive, stable interpersonal relationships) has led to much research over the past decade. Although such a need is universal, some qualitative differences exist in its orientation. Specifically, two belongingness need orientations are proposed: a growth orientation (a belongingness need directed toward interpersonal actualization) and a deficit-reduction orientation (a belongingness need directed toward interpersonal deficit reduction or repair). It is hypothesized that a deficit-reduction orientation to the need to belong is associated with lower levels of intrapersonal and interpersonal psychological functioning compared to a growth orientation. The results of a series of four studies supported the proposed hypotheses. Implications of the proposed model for future research on the need to belong are discussed.     

Older adults' configural processing of faces: role of second-order information

Problems with face recognition are frequent in older adults. However, the mechanisms involved have only been partially discovered. In particular, it is unknown to what extent these problems may be related to changes in configural face processing. Here, we investigated the face inversion effect (FIE) together with the ability to detect modifications in the vertical or horizontal second-order relations between facial features. We used a same/different unfamiliar face discrimination task with 33 young and 33 older adults. The results showed dissociations in the performances of older versus younger adults. There was a lack of inversion effect during the recognition of original faces by older adults. However, for modified faces, older adults showed a pattern of performance similar to that of young participants, with preserved FIE for vertically modified faces and no detectable FIE for horizontally modified faces. Most importantly, the detection of vertical modifications was preserved in older relative to young adults whereas the detection of horizontal modifications was markedly diminished. We conclude that age has dissociable effects on configural face-encoding processes, with a relative preservation of vertical compared to horizontal second-order relations processing. These results help to understand some divergent results in the literature and may explain the spared familiar face identification abilities in the daily lives of older adults.     

Visual perception of thick transparent materials

Under typical viewing conditions, human observers readily distinguish between materials such as silk, marmalade, or granite, an achievement of the visual system that is poorly understood. Recognizing transparent materials is especially challenging. Previous work on the perception of transparency has focused on objects composed of flat, infinitely thin filters. In the experiments reported here, we considered thick transparent objects, such as ice cubes, which are irregular in shape and can vary in refractive index. An important part of the visual evidence signaling the presence of such objects is distortions in the perceived shape of other objects in the scene. We propose a new class of visual cues derived from the distortion field induced by thick transparent objects, and we provide experimental evidence that cues arising from the distortion field predict both the successes and the failures of human perception in judging refractive indices.     

Metaphysical underdetermination: why worry?

Various forms of underdetermination that might threaten the realist stance are examined. That which holds between different ‘formulations’ of a theory (such as the Hamiltonian and Lagrangian formulations of classical mechanics) is considered in some detail, as is the ‘metaphysical’ underdetermination invoked to support ‘ontic structural realism’. The problematic roles of heuristic fruitfulness and surplus structure in attempts to break these forms of underdetermination are discussed and an approach emphasizing the relevant structural commonalities is defended.     

TRANSITIVITY OF ODOR PREFERENCES: CONSTANT AND PARTICULARITIES IN HEDONIC PERCEPTION

Transitivity of preferences has been investigated for a long time in decision‐making. In the field of perception, the pleasantness of odors raises several questions related to individual versus cultural or universal preferences and the existence of a classification in a delimited hedonic space. The aim of this study was to test transitivity in olfactory hedonicity using a first panel of 10 mixed odors and a second panel of 10 odors from a delimited floral category. Data were collected by paired comparisons in a two‐alternative forced choice. Results in both panels showed a strong transitivity for each participant leading to a linear range of 10 odors classified by preference. However, ranges varied from one participant to another and the mean preferences of the group did not allow one to infer individual's hedonic classification of odors. Moreover, the individual classification appeared stable over time and undisturbed by odorant distractors. These findings suggest that humans have considerable ability to classify odors hedonically as a model of individual preferences in a sensory space usually considered to be more involved in affective/emotional states than in cognitive performances.     

Comparative optimism for severity of negative health outcomes

People tend to be comparatively optimistic (i.e., believe that negative outcomes are less likely for themselves than for typical others) regarding their susceptibility to negative health outcomes. The present study investigates the extent to which perceptions of the severity of these health outcomes show similar comparative optimism. A student sample (study 1; N = 200) and a healthy non-student adult sample (study 2; N = 257) completed self-report measures of susceptibility, severity, worry, control and experience in relation to negative health outcomes. Participants in both studies demonstrated significant levels of comparative optimism for both perceived likelihood and severity of health outcomes. Comparative optimism concerning severity was very strongly associated (r = 0.85 to 0.89) with comparative optimism concerning susceptibility. In addition to being comparatively optimistic over their chances of experiencing negative health outcomes, people are also comparatively optimistic regarding how severe the health outcomes will be.     

Posttraumatic stress disorder and criminal violence: Basic concepts and clinical-forensic applications

In a small number of felony murder cases, posttraumatic stress disorder (PTSD) has been used as an affirmative defense to plead not guilty by reason of insanity or to argue for diminished capacity as a mitigating factor at sentencing. This article traces the history of PTSD as a legal defense; describes the clinical criteria for diagnosing and assessing PTSD; outlines the legal criteria for the affirmative defense of not guilty by reason of insanity (NGRI) and mitigation on the grounds of diminished capacity; and discusses the applications and pitfalls of using PTSD as an exculpatory factor in crimes of violence, including murder.