CHRISTIAN THOUGHT,RACE, BLUMENBACH,AND HISTORICIZING

Terence Keel's Divine Variations: How Christian Thought Became Racial Science attributes the origins of “racial science” to Christian intellectual history. This is a bold and original argument, but it is not without deep difficulties, particularly in the early sections of the book. The concept of “race” is not sufficiently historicized and the treatment of Johann Friedrich Blumenbach needs to be more firmly grounded in the world of eighteenth‐century natural history.     

Comparing public concern and support for drone regulation to the current legal framework

In this study we assess the extent to which the regulations governing the use of drones in the United States address the concerns held by the public they are meant to protect. In general, respondents were most supportive of those regulations that could be categorized as limiting one's exposure to an unwanted drone. The most popular policies were those that protected personal privacy, while the least popular were those that hampered drones used for public safety. The largest discrepancy was found to be respondents' preference for laws protecting personal privacy compared with the lack of regulatory constraints currently in place. Federal regulators have only begun to introduce regulations on how drones can be used in our national airspace, with additional regulations for other types and sizes of drones likely to be introduced in the future. The results of this study may be utilized by regulators and lawmakers to create a regulatory structure that effectively mitigates risk and supports the public interest.     

Exploring separable components of institutional confidence

Despite its contemporary and theoretical importance in numerous social scientific disciplines, institutional confidence research is limited by a lack of consensus regarding the distinctions and relationships among related constructs (e.g., trust, confidence, legitimacy, distrust, etc.). This study examined four confidence-related constructs that have been used in studies of trust/confidence in the courts: dispositional trust, trust in institutions, obligation to obey the law, and cynicism. First, the separability of the four constructs was examined by exploratory factor analyses. Relationships among the constructs were also assessed. Next, multiple regression analyses were used to explore each construct's independent contribution to confidence in the courts. Finally, a second study replicated the first study and also examined the stability of the institutional confidence constructs over time. Results supported the hypothesized separability of, and correlations among, the four confidence-related constructs. The extent to which the constructs independently explained the observed variance in confidence in the courts differed as a function of the specific operationalization of confidence in the courts and the individual predictor measures. Implications for measuring institutional confidence and future research directions are discussed.     

Object-oriented millisecond timers for the PC

Object-oriented programming provides a useful structure for designing reusable code. Accurate millisecond timing is essential for many areas of research. With this in mind, this paper provides a Turbo Pascal unit containing an object-oriented millisecond timer. This approach allows for multiple timers to be running independently. The timers may also be set at different levels of temporal precision, such as 10⁻³ (milliseconds) or 10⁻⁵ sec. The object also is able to store the time of a flagged event for later examination without interrupting the ongoing timing operation.     

Why Compositionality Won't Go Away: Reflections on Horwich's 'Deflationary' Theory

Paul Horwich argues for a 'deflationary'account of compositionality, according to which, '. . . the compositionality of meaning imposes no constraint at all on how the meaning properties of words are constituted'. We have arrived at a tentative diagnosis, which is that Horwich fails to enforce several distinctions that turn out to be crucial. For example, sometimes he puts his main conclusion in the way we just quoted but sometimes, even on the following page, he puts it like this: 'understanding one of oneÕs own complex expressions (non-idiomatically) is, by definition, nothing over and above understanding its parts and knowing how they are combined'. We propose, in what follows, to consider how Horwich's deflationary account of compositionality fares if the distinction between theories of meaning and theories of understanding is properly attended to. Here's how we think it all turns out:
– Horwich is right to claim that compositionality is neutral with respect to the metaphysics of understanding expressions when 'understanding' refers to a (merely) dispositional state; but not when it refers to an occurrent state.
– Horwich is right strictu dictu to claim that compositionality is neutral with respect to the character of lexical meanings, but only strictu dictu.
– Compositionality taken, together with other constraints that semantic theories are required to satisfy, reduces the options in the theory of lexical meaning to a bare minimum.
The first part of the paper is about compositionality and understanding, the second part is about compositionality and lexical meaning.     

Environmentally induced analgesia: age-related decline in a neurally mediated, nonopioid system

In order to examine the function of an endogenous system of pain inhibition during aging, rats (3, 14, and 24 months old) were exposed to 90 s of hind-paw shock. To investigate the pharmacology and anatomy involved in the production of hind-paw shock induced analgesia, the effects of naltrexone (7 mg/kg), scopolamine (5 mg/kg), and adrenalectomy were examined. Results revealed that there was an age-related reduction in the degree of analgesia produced by hind-paw shock. Naltrexone and adrenalectomy did not alter the analgesia elicited by hind-paw shock. Scopolamine reduced the analgesia produced by hind-paw shock, and the effectiveness of scopolamine blockage declined with age. The results of a second experiment demonstrated that the effect of scopolamine was specific to the analgesia induced by hind-paw shock because scopolamine was ineffective in modifying the analgesia produced by a different stressor (cold water). These results suggest that the decline in hind-paw shock induced analgesia is the result of an alteration in the function of the cholinergic system.     

Transcutaneous vagus nerve stimulation (tVNS) enhances conflict-triggered adjustment of cognitive control

Response conflicts play a prominent role in the flexible adaptation of behavior as they represent context-signals that indicate the necessity for the recruitment of cognitive control. Previous studies have highlighted the functional roles of the affectively aversive and arousing quality of the conflict signal in triggering the adaptation process. To further test this potential link with arousal, participants performed a response conflict task in two separate sessions with either transcutaneous vagus nerve stimulation (tVNS), which is assumed to activate the locus coeruleus-noradrenaline (LC-NE) system, or with neutral sham stimulation. In both sessions the N2 and P3 event-related potentials (ERP) were assessed. In line with previous findings, conflict interference, the N2 and P3 amplitude were reduced after conflict. Most importantly, this adaptation to conflict was enhanced under tVNS compared to sham stimulation for conflict interference and the N2 amplitude. No effect of tVNS on the P3 component was found. These findings suggest that tVNS increases behavioral and electrophysiological markers of adaptation to conflict. Results are discussed in the context of the potentially underlying LC-NE and other neuromodulatory (e.g., GABA) systems. The present findings add important pieces to the understanding of the neurophysiological mechanisms of conflict-triggered adjustment of cognitive control.