The differential role of phonological and distributional cues in grammatical categorisation

Recognising the grammatical categories of words is a necessary skill for the acquisition of syntax and for on-line sentence processing. The syntactic and semantic context of the word contribute as cues for grammatical category assignment, but phonological cues, too, have been implicated as important sources of information. The value of phonological and distributional cues has not, with very few exceptions, been empirically assessed. This paper presents a series of analyses of phonological cues and distributional cues and their potential for distinguishing grammatical categories of words in corpus analyses. The corpus analyses indicated that phonological cues were more reliable for less frequent words, whereas distributional information was most valuable for high frequency words. We tested this prediction in an artificial language learning experiment, where the distributional and phonological cues of categories of nonsense words were varied. The results corroborated the corpus analyses. For high-frequency nonwords, distributional information was more useful, whereas for low-frequency words there was more reliance on phonological cues. The results indicate that phonological and distributional cues contribute differentially towards grammatical categorisation.     

Bootstrapping the lexicon: a computational model of infant speech segmentation

Prelinguistic infants must find a way to isolate meaningful chunks from the continuous streams of speech that they hear. BootLex, a new model which uses distributional cues to build a lexicon, demonstrates how much can be accomplished using this single source of information. This conceptually simple probabilistic algorithm achieves significant segmentation results on various kinds of language corpora - English, Japanese, and Spanish; child- and adult-directed speech, and written texts; and several variations in coding structure - and reveals which statistical characteristics of the input have an influence on segmentation performance. BootLex is then compared, quantitatively and qualitatively, with three other groups of computational models of the same infant segmentation process, paying particular attention to functional characteristics of the models and their similarity to human cognition. Commonalities and contrasts among the models are discussed, as well as their implications both for theories of the cognitive problem of segmentation itself, and for the general enterprise of computational cognitive modeling.     

The development of exogenous orienting: mechanisms of control

The present study examined exogenous orienting in children ages 6 years (n=14), 10 years (n=13), 14 years (n=14), and adults (n=13). The main purpose was to identify which of the attentional operations underlying exogenous orienting (disengaging, shifting, and/or engaging) improves with age. A simple detection task was used in which single targets were correctly (80%) or incorrectly (20%) cued. The main finding was that disengaging attention alone distinguished the performance of younger children from that of older children and adults, regardless of whether attention alone (covert attention) or attention and associated sensory and motor systems (overt attention) were involved. In addition, our data, in contrast to those reported previously, raise the possibility that even the youngest children tested were able to use the predictability of the cue to enhance their performance. These and related neuroanatomical findings are taken as evidence for the development with age of more flexible control in orienting visual attention.     

从"载营魄抱一"看逍遥境界与成仙信仰

中国古代道家(教)常常或隐或显地体现出对内体的肯定甚至眷恋。本文从中国古代的魂魄二元灵魂观入手考察其身体观及对灵肉关系的看法,并选取《庄子》逍遥境界与道教的成仙信仰这两种迥异于西方的超越样式进行具体的分析,以期展露其“肉体关怀”的真正根源所在。     

The Impact of Welfare Reform on Men's Violence against Women

Welfare reform is likely to have a profound effect on the lives of poor women who are being abused. This article proposes exchange theory and the feminist backlash hypothesis as frameworks with which to assess the impact of welfare reform on violence levels in abusive relationships. Exchange theory suggests that if a woman leaves welfare and obtains employment that increases her economic resources, violence against her will decrease. The backlash hypothesis makes a different prediction: Violence will increase as men attempt to compensate for women's enhanced status or independence. Both approaches are examined in light of current data. As demonstrated here, the incorporation into social policy analyses of feminist thinking about dominance and power will enrich our understanding of the impact of social policy changes on people.     

Beyond Body Size: Focusing on Body Functionality to Improve Body Image Among Women Who Have Undergone Bariatric Surgery

This study investigated a novel technique to improve body image among women who have undergone bariatric surgery—namely, by having them focus on their body functionality (everything the body can do, rather than how it looks). Participants were 103 women (M_age = 46.61) who had undergone bariatric surgery 5–7 months prior to the study. They were randomized to the 1-week online intervention, comprising three functionality-focused writing exercises (Expand Your Horizon; Alleva et al., 2015), or to a wait-list control group. Body appreciation, appearance and functionality satisfaction, body awareness, self-objectification, self-esteem, and self-kindness were assessed at pretest, posttest, and at 1-week and 3-month follow-up. Multilevel modeling analyses showed that, compared to the control, the intervention group experienced improved body appreciation at posttest, and these improvements persisted at both follow-ups. These findings were nonsignificant when intent-to-treat analyses were performed. Both available case and intent-to-treat analyses showed that all participants experienced improvements in facets of body image across time. Qualitative analyses of participants’ responses to the intervention writing exercises provided more insight. Via coding reliability thematic analysis, we identified 11 themes that together provide evidence that intervention participants experienced facets of a more positive body image, while also facing challenges to their body image and well-being. Together, findings suggest that focusing on body functionality may contribute to improved body image among women who have undergone bariatric surgery, but effects may be nuanced compared to prior functionality research among general samples of women. The study was registered retrospectively (ClinicalTrials.gov; identifier NCT04883268).     

Comparing music- and food-evoked autobiographical memories in young and older adults: A diary study

Previous research has found that music brings back more vivid and emotional autobiographical memories than various other retrieval cues. However, such studies have often been low in ecological validity and constrained by relatively limited cue selection and predominantly young adult samples. Here, we compared music to food as cues for autobiographical memories in everyday life in young and older adults. In two separate four-day periods, 39 younger (ages 18–34) and 39 older (ages 60–77) adults recorded their music- and food-evoked autobiographical memories in paper diaries. Across both age groups, music triggered more frequent autobiographical memories, a greater proportion of involuntary memories, and memories rated as more personally important in comparison to food cues. Age differences impacted music- and food-evoked memories similarly, with older adults consistently recalling older and less specific memories, which they rated as more positive, vivid, and rehearsed. However, young and older adults did not differ in the number or involuntary nature of their recorded memories. This work represents an important step in understanding the phenomenology of naturally occurring music-evoked autobiographical memories across adulthood and provides new insights into how and why music may be a more effective trigger for personally valued memories than certain other everyday cues.     

Comparing an interdependent and dependent group contingency to increase physical activity in students during recess

Physical activity produces important physiological, mental health, academic, and cognitive benefits in children and youth. Despite these advantages, a large proportion of this population does not meet the recommended amount of physical activity. Recent studies have shown that the interdependent (IGC) and dependent (DGC) group contingencies improve physical activity; however, no comparison of the effects of these contingencies on physical activity has been conducted. We used a multielement within a concurrent multiple baseline design across three classes to compare the effectiveness of group contingencies on physical activity. Both group contingencies increased physical activity, with the IGC producing slightly higher overall levels of physical activity at the classwide and individual levels of analyses. We also compared participants' positive and negative statements and found that, regardless of the group contingency in effect, participants emitted higher levels of positive statements about the contingency when they earned the reward than when they did not, suggesting that reward delivery influenced statements more so than the group contingency arrangement. Results are discussed within the context of treatment decisions and future research.     

中学生物理学科问题分类表征层次的研究

以三套分别含有按照解题方法可以分为二类、三类、四类的物理学科问题分类实验材料,对济南市6所中学3个年级766名中学生进行研究,结果表明:不同年级、不同学业水平学生分类表征层次的差异显著,呈现随年级升高而升高的趋势,学优生的水平明显高于学困生,学优生更多地倾向内在分类表征;随着分类任务的类别数量增多,更多学生倾向外在分类表征;不同性别学生的分类表征层次没有显著差异;不同物理学科问题分类表征层次学生的物理成绩之间存在显著差异。