Use of electronic games by young children and fundamental movement skills?

This study investigated associations between pre-school children's time spent playing electronic games and their fundamental movement skills. In 2009, 53 children had physical activity (Actigraph accelerometer counts per minute), parent proxy-report of child's time in interactive and non-interactive electronic games (min./week), and movement skill (Test of Gross Motor Development-2) assessed. Hierarchical linear regression, adjusting for age (range = 3-6 years), sex (Step 1), and physical activity (cpm; M=687, SD=175.42; Step 2), examined the relationship between time in (a) non-interactive and (b) interactive electronic games and locomotor and object control skill. More than half (59%, n=31) of the children were female. Adjusted time in interactive game use was associated with object control but not locomotor skill. Adjusted time in non-interactive game use had no association with object control or locomotor skill. Greater time spent playing interactive electronic games is associated with higher object control skill proficiency in these young children. Longitudinal and experimental research is required to determine if playing these games improves object control skills or if children with greater object control skill proficiency prefer and play these games.     

Recurrence

Standard compositionality is the doctrine that the semantic content of a compound expression is a function of the semantic contents of the contentful component expressions. In 1954 Hilary Putnam proposed that standard compositionality be replaced by a stricter version according to which even sentences that are synonymously isomorphic (in the sense of Alonzo Church) are not strictly synonymous unless they have the same logical form. On Putnam??s proposal, the semantic content of a compound expression is a function of: (i) the contentful component expressions; and (ii) the expression??s logical form. Kit Fine recently expanded and modified Putnam??s idea into a sweeping theory in philosophy of language and philosophy of mind. The present paper is a detailed critique of Fine??s ??semantic relationism.?? Fine??s notion of coordination is explained in terms of the familiar pragmatic phenomenon of recognition. A serious error in Fine??s formal disproof of standard Millianism is exposed. It is demonstrated furthermore that Church??s original criticism of Putnam??s proposal can be extended to Fine??s semantic relationism. Finally, it is also demonstrated that the positive position Fine proffers to supplant standard Millianism is in fact exactly equivalent to standard Millianism, so that Fine??s overall position not only does not displace standard Millianism but is in fact inconsistent.     

Comparing the influence of directly vs. indirectly encountered post-event misinformation on eyewitness remembering

Some research has found a stronger influence of directly (face-to-face; co-witness; ‘social’) vs. indirectly (through written reports, ‘non-social’) encountered post-event misinformation on eyewitness memory reports, whereas other research finds no (big) difference. We argue and demonstrate that a crucial but so far neglected variable underlying this difference is memory for the misleading information itself. In a study with N = 120 participants who encountered misinformation directly or indirectly, we found misinformation retention (as assessed in a separate test) to be positively associated with a broad range of misinformation effects. Influence type (direct vs. indirect), however, did not moderate the misinformation effect in terms of memory for original details, and misinformation endorsement was even weaker in the direct influence condition. In our view, these findings reflect differential conversion of retained misinformation into test performance. Other than this, influence type had essentially no effects on remembering; nor did an additional post-warning manipulation.     

The Neural Correlates of Updating Information in Verbal Working Memory

The aim of the present study was to re-examine cerebral areas subserving the updating function of the central executive with a running span task requiring subjects to watch strings of consonants of unknown length and then to recall serially a specific number of recent items. In order to dissociate more precisely the updating process from the storage function, a four-item instead of a six-item memory load was used, contrary to our previous study (Salmon et al., 1996). In addition, a serial recall procedure was preferred to a recognition procedure in order to suppress the use of visuospatial strategies. The most significant increase of rCBF occurred in the left frontopolar cortex (Brodmann's area 10), spreading to the left middle frontal (Brodmann's area 46). Results suggest that frontopolar activation underlies an updating process in working memory.     

Mindfulness and acceptance are associated with exercise maintenance in YMCA exercisers

Although most U.S. adults have initiated an exercise program at some time, only a fraction are able to maintain consistent exercise. Instead, research suggests that intermittent exercise is commonplace among U.S. adults, underscoring the importance of identifying factors associated with consistent exercise at a level that promotes health and long-term maintenance of this activity. We proposed a theoretical model in which mindfulness and acceptance may promote exercise initiation and maintenance. Mindfulness, acceptance, and suppression were examined as a function of exercise status in 266 YMCA exercisers. Those who were successful at maintaining exercise tended to score higher on measures of mindfulness and acceptance, and lower on measures of suppression. Findings are discussed in light of our proposed theoretical model in which exercisers having greater mindfulness and acceptance are less reactive; responding with more balanced appraisals to threats to their exercise regimen which in turn promotes increased exercise maintenance. Future studies should utilize longitudinal design to examine causal relationships between variables.     

Contribution of lexico-semantic processes to verbal short-term memory tasks: a PET activation study

Recent studies have demonstrated the intervention of long-term memory processes in verbal STM tasks and several cognitive models have been proposed to explain these effects. A PET study was performed in order to determine whether supplementary cerebral areas are involved when subjects have to execute short-term memory tasks for items having representations in long-term memory (in comparison to items without such representations: words vs non-words). Results indicate that verbal STM for words specifically involves the left middle temporal gyrus (BA 21) and temporo-parietal junction (BA 39). These areas can be associated with lexical and semantic processes. These results are in agreement with cognitive models that postulate the simultaneous influence of lexical and semantic long-term representations on verbal STM processes and/or a lexico-semantic buffer.     

Cross-language intrusion errors in aging bilinguals reveal the link between executive control and language selection

Bilinguals outperform monolinguals on measures of executive control, but it is not known how bilingualism introduces these advantages. To address this question, we investigated whether language-control failures increase with aging-related declines in executive control. Eighteen younger and 18 older Spanish-English bilinguals completed a verbal-fluency task, in which they produced words in 18 categories (9 in each language), and a flanker task. Performance on both tasks exhibited robust effects of aging, but cross-language and within-language errors on the verbal-fluency task differed in a number of ways. Within-language errors occurred relatively often and decreased with higher levels of education in both younger and older bilinguals. In contrast, cross-language intrusions (e.g., inadvertently saying an English word on a Spanish-language trial) were rarely produced, were not associated with education level, and were strongly associated with flanker-task errors in older but not younger bilinguals. These results imply that executive control plays a role in maintaining language selection, but they also suggest the presence of independent forces that prevent language-selection errors.     

Do Non‐Verbal Aids Increase the Effectiveness of ‘Best Practice’ Verbal Interview Techniques? An Experimental Study

Two experiments examined the effectiveness of non‐verbal interview aids as means of increasing the amount of information children report about an event under conditions designed to mimic their use in the field. In the first study, 27 5–7‐year‐old children took part in an event, and 7–10 days later were interviewed using the National Institute of Child Health and Human Development Protocol interview followed by an opportunity to draw the event or complete puzzles and, in turn, a second verbal interview. New information was reported following both drawing and puzzles and accuracy declined in both conditions, but drawing did not differentially influence recall. In the second experiment, dolls or human figure diagrams were introduced to clarify children's (N = 53) reports of touch as recommended in by some professionals, with a verbal interview serving as a control. Props did not increase the amount of information reported compared with best practice verbal techniques, but nor did they elevate errors. The findings support the use of a second recall attempt, but do not support the use of non‐verbal aids, even when these are used following professional recommendations. Copyright © 2011 John Wiley & Sons, Ltd.