Haptics and projection: drawings by Tracy, a blind adult

Outline drawings in a raised form were made by a blind woman, Tracy, who has been blind from very early in life. Highly practiced in drawing, she reports she is largely self-taught. To invoke matters of projection, she was asked to represent an object with faces slanting away from the observer, a fixed array from different vantage points, and sets of objects in depth. In particular, she drew a cube balanced on a vertex, three objects from different vantage points, receding rows of glasses, and a house. Her drawings included features of parallel and polar projection. Her use of these features may reflect an appreciation of direction from a vantage point, which observers deal with via haptics in everyday tasks. Tracy may have advanced drawing-development skills common to the blind and the sighted.     

Kognitive Dissonanz nach Entscheidungen und psychische Erkrankungen

Building upon Grawe’s consistency theory the target of this study was to examine if cognitive dissonance has an influence on mental disorders. More precisely, whether post-decisional cognitive dissonance (1) is more pronounced in patients with mental disorders and (2) whether it correlates with symptom burden. Obsessive-compulsive disorder patients (OCD; n?=?15), depressive patients (n?=?20) and controls (n?=?42) completed a post-decisional cognitive dissonance scale as well as a scale assessing their respective symptom burden. Solely OCD patients showed heightened cognitive dissonance compared to controls (p?=?0.019). Among depressive patients, however, a very high correlation was found to exist between symptom burden and cognitive dissonance (r?=?0.70). Therefore, OCD seems to be related to increased cognitive dissonance which supports the assumption that cognitive dissonance plays a role in this mental disorder.     

Assertion,Moore, and Bayes

It is widely believed that the so-called knowledge account of assertion best explains why sentences such as “It’s raining in Paris but I don’t believe it” and “It’s raining in Paris but I don’t know it” appear odd to us. I argue that the rival rational credibility account of assertion explains that fact just as well. I do so by providing a broadly Bayesian analysis of the said type of sentences which shows that such sentences cannot express rationally held beliefs. As an interesting aside, it will be seen that these sentences also harbor a lesson for Bayesian epistemology itself.

Drinking and driving “safely”: Who uses a breathalyzer and when?

Breathalyzers are often promoted on the grounds of safety. However, drivers who use them to avoid illegal blood-alcohol levels inadvertently expose themselves to sleepiness-related risks following alcohol intake. Personal breathalyzers may even be counterproductive if they make more drivers engage in more frequent or habitual drinking and driving. This study explores the extent to which and how drivers use the breathalyzer. We contacted nine major breathalyzer importers in Finland and found out that the estimated number of devices delivered during 2006 was almost 50,000, equaling approximately one percent of population and one-and-a-half percent of driving-license holders. Survey data on a representative sample of Finnish active drivers (N = 1121) showed that 11.5% owned a breathalyzer. More men than women own and use a breathalyzer, and most often the men are aged 36–55 years. These men also use it more often after acute drinking (32% vs. 20% in the whole sample). Seventy-nine percent of breathalyzer use occurs the following day after evening or night drinking. Therefore, while in a smaller percentage of cases the risk involves the additive and interactive effects of alcohol and sleepiness in the evening, most users expose themselves to risks related to daytime sleepiness due to drinking the previous night.     

Intellectuals as missionaries: the liberal opposition in Russia and their notion of culture

The present article is primarily concerned with the imagined community of liberal intellectuals (starting with the Westernizers, in the 1840s, and ending with the Kadets and the participants of the October Revolution in the early twentieth century), rather than the community that “objectively” existed. This imaginary community constructed notions of the collective identity of their own group as well as that of Russian society. For this purpose, they instrumentalized the notions of “progress,” “backwardness,” “culturedness” (kul’turnost’) and “benightedness” (temnota), thereby creating hierarchies in which the “constructors” of collective identities granted themselves the important role of intermediaries between state and society. Special attention is paid to the prominent role Russia’s liberal historians played in this process insofar as historians possessed great power in nineteenth-century Europe—the power to tell their states and societies about their past, present, and future—and this transformed them into professional producers of (national) identities. Their work combined expert knowledge and ideological clichés in a highly complex manner. The central question posed is to what extent and in what respect the reality constructed by Russian intellectuals coincided with the actions of intellectuals in other European regions or, on the contrary, to what extent their discursive activities had a specifically local character.     

A randomized clinical trial of Behavioral Activation (BA) therapy for improving psychological and physical health in dementia caregivers: Results of the Pleasant Events Program (PEP)

Dementia caregiving is associated with elevations in depressive symptoms and increased risk for cardiovascular diseases (CVD). This study evaluated the efficacy of the Pleasant Events Program (PEP), a 6-week Behavioral Activation intervention designed to reduce CVD risk and depressive symptoms in caregivers. One hundred dementia family caregivers were randomized to either the 6-week PEP intervention (N = 49) or a time-equivalent Information-Support (IS) control condition (N = 51). Assessments were completed pre- and post-intervention and at 1-year follow-up. Biological assessments included CVD risk markers Interleukin-6 (IL-6) and D-dimer. Psychosocial outcomes included depressive symptoms, positive affect, and negative affect. Participants receiving the PEP intervention had significantly greater reductions in IL-6 (p = .040), depressive symptoms (p = .039), and negative affect (p = .021) from pre- to post-treatment. For IL-6, clinically significant improvement was observed in 20.0% of PEP participants and 6.5% of IS participants. For depressive symptoms, clinically significant improvement was found for 32.7% of PEP vs 11.8% of IS participants. Group differences in change from baseline to 1-year follow-up were non-significant for all outcomes. The PEP program decreased depression and improved a measure of physiological health in older dementia caregivers. Future research should examine the efficacy of PEP for improving other CVD biomarkers and seek to sustain the intervention's effects.     

Neurocognitive Complications of HIV Disease

Neurocognitive complications are the most common sequelae of HIV infection if the full spectrum of HIV disease—from initial seroconversion to death from advanced AIDS—is considered. Though resembling subcortical neurological disorders from a neuropsychological standpoint, the presentation is variable, and almost any pattern can be seen. Although neuropsychological impairment is often subtle, it can affect day-to-day life and is associated with earlier mortality. It is not clear if milder forms of neurocognitive disturbance necessarily presage advanced dementia, and current data suggest a two-factor model: a subacute relapsing-remitting condition that can occur at any stage of HIV disease and a progressive, more fulminant dementia. The pathological substrates of these conditions are not well characterized, although recent data support the notion that synaptodendritic damage underlies the neuropsychological impairment, and may precede the neuronal loss and other pathological features more characteristic of HIV encephalitis. Some reversibility of neurocognitive disturbance has been reported with zidovudine therapy, though the data are not consistent. New regimens involving protease inhibitors need to be evaluated in terms of benefit to the central nervous system because many drugs of this class do not penetrate the blood-brain barrier efficiently. Finally, studies utilizing experimental treatments that may affect the putative mechanisms of neural injury are in progress.     

On Bradley’s preservation condition for conditionals

Bradley has argued that a truth-conditional semantics for conditionals is incompatible with an allegedly very weak and intuitively compelling constraint on the interpretation of conditionals. I argue that the example Bradley offers to motivate this constraint can be explained along pragmatic lines that are compatible with the correctness of at least one popular truth-conditional semantics for conditionals.