Nicotine has recently been shown to enhance measures of information processing speed including the decision time (DT) component of simple and choice reaction time, the inspection time (IT) measure of perceptual speed and the string length measure of evoked potential waveform complexity . All three tasks (DT, IT and string length) have been previously demonstrated to correlate with performance o...

What man is so mad as wil say the swan is black: or that the raven is in couloure white, when the matter is otherwise to be judged by commonsense? {Cardanus ca. 1576 Abstract. What sorts of observations could connrm the universal hypothesis that all ravens are black? Carl Hempel proposed a number of simple and plausible principles which had the odd (\paradoxical") result that not only do observ...

Hierarchical models of intelligence are highly informative and widely accepted. Application of these models to twin data, however, is sparse. This paper addresses the question of how a genetic hierarchical model fits the Wechsler Adult Intelligence Scale (WAIS) subtests and the Raven Standard Progressive test score, collected in 194 18-year-old Dutch twin pairs. We investigated whether first-or...

In the broad framework of nuclear power plants (NPPs) industry, dynamic probabilistic risk assessment could answer time dependence deficiency event tree and fault analysis. The basic approach relies on experts’ pre-constructed accident sequences without exploring time-dependent nature an scenario, which strongly affect sequence. Conversely, effects events timing can be studied by adopting a (DE...

Twelve subjects with Down syndrome underwent polysomnographic studies during night sleep and performed the Mini-Mental state test and the Raven Progressive Matrices (RPM), sets A, B, and B(1). Sleep-disordered breathing (SDB) deficits were observed in Down syndrome individuals and their Mini-Mental and RPM scores were extremely low. Regression analysis of the results revealed that the number of...

This study investigated the relationships between cognitive ability (as assessed by the Raven Progressive Matrices Test [RPM] and the Visual-Span Test [VSPAN]) and individuals’ performance in three dynamic decision making (DDM) tasks (i.e., regular Water Purification Plant [WPP], Team WPP, and Firechief). Participants interacted repeatedly with one of the three microworlds. Our results indicate...

Ravens (Corvus corax) feed primarily on rich but ephemeral carcasses of large animals, which are usually defended by territorial pairs of adults. Non-breeding juveniles forage socially and aggregate in communal winter roosts, and these appear to function as 'information centers' regarding the location of the rare food bonanzas: individuals search independently of one another and pool their effo...

OBJECTIVES The aim of the study was to examine the hypothesis that MMR exposure has a negative influence on cognitive development in children. Furthermore, MMR was compared to single measles vaccine to determine the potential difference of these vaccines safety regarding children's cognitive development. METHODS The prospective birth cohort study with sample consisted of 369 infants born in K...

Raven consists of an object-oriented programming language and a runtime system that supports distributed and multiprocessor computing. This paper describes the motivation behind the design of the object property scheme used in the Raven system, the behavioral semantics for each of the properties supported, and schemes by which inter-object dependencies can be described. Raven provides a set of ...