Gender differences in mental simulation during sentence and word processing

Text comprehension requires readers to mentally simulate the described situation by reactivating previously acquired sensory and motor information from (episodic) memory. Drawing upon research demonstrating gender differences, favouring girls, in tasks involving episodic memory retrieval, the present study explores whether gender differences exist in mental simulation in children (Grades 4 to 6). In Experiment 1, 99 children performed a sentence–picture verification task measuring mental simulation at sentence level. In Experiment 2, 97 children completed a lexical decision task in which imageability of words was manipulated to measure mental simulation at word level. Only for girls we found faster reaction times for matching versus mismatching sentence–picture pairs (Experiment 1) and high-imageability versus low-imageability words (Experiment 2). The results suggest that girls construct more coherent and vivid mental simulations than boys and rely more heavily on these representations. The results emphasize the importance of including gender into reading comprehension research

Effects of sleep deprivation on neural functioning: an integrative review

Sleep deprivation has a broad variety of effects on human performance and neural functioning that manifest themselves at different levels of description. On a macroscopic level, sleep deprivation mainly affects executive functions, especially in novel tasks. Macroscopic and mesoscopic effects of sleep deprivation on brain activity include reduced cortical responsiveness to incoming stimuli, reflecting reduced attention. On a microscopic level, sleep deprivation is associated with increased levels of adenosine, a neuromodulator that has a general inhibitory effect on neural activity. The inhibition of cholinergic nuclei appears particularly relevant, as the associated decrease in cortical acetylcholine seems to cause effects of sleep deprivation on macroscopic brain activity. In general, however, the relationships between the neural effects of sleep deprivation across observation scales are poorly understood and uncovering these relationships should be a primary target in future research

Fallacies of Virtualization: a Case Study of Farming, Manure, Landscapes, and Dutch Rural Policy

The recent rapprochement between Science and Technology Studies (STS) and Political Science (PS) is induced by the broadened understanding of political action. The debate concerning the nature of ``the political'' produces an important question concerning the possibilities of an issue- or object-oriented focus for understanding political action. The purpose of this article is to contribute to this debate through an analysis of how relations between material and social entities are continuously recontextualized and decontextualized in social and political interaction. The authors discuss established approaches to explain the concept of virtualization. Virtualization is then used in a case study on the implementation of manure regulation in East Fryslân, the Netherlands, to illustrate how cases or issues are virtualized in political decision making, which produces initial presumptions that carry conclusive weight. The authors conclude that a broad understanding of the political in both STS and PS can only be sustained through an understanding of how relations between social and material entities are continuously decontextualized and recontextualized in political and social interactio

What can measures of text comprehension tell us about creative text production?

Evidence is accumulating that the level of text comprehension is dependent on the situatedness and sensory richness of a child’s mental representation formed during reading. This study investigated whether these factors involved in text comprehension also serve a functional role in writing a narrative. Direct influences of situatedness and sensory richness as well as indirect influences via the number of sensory and situational words on the creativity (i.e., originality/novelty) of a written narrative were examined in 165 primary school children through path analyses. Results showed that sensory richness and situatedness explained 35 % of the variance in creativity scores. Sensory richness influenced the originality/novelty of children’s narrative writing directly, whereas situatedness had an indirect influence, through the number of sensory words, but both pathways influenced the outcomes to a comparable extent. Findings suggest that creative writing requires similar representational processes as reading comprehension, which may contribute to the development of instructional methods to help children in creative writing assignments