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排序方式: 共有134条查询结果,搜索用时 15 毫秒
31.
Elza M. Stella Prorok 《Journal of psycholinguistic research》1980,9(5):451-471
The theoretical importance of the linguistic data available to the child in his natural environment has been increasingly emphasized in recent work on child language acquisition. This study sought to describe a portion of such data as contained in maternal verbal behavior and to analyze its influence on the child's usage of speech. The subjects were five 21-month-old children and their mothers. The mother-child verbal interchange was recorded during free-play situations carried out both at the subject's home and in a playroom. The interactive patterns of mother-child utterances were analyzed with regard to the kind and frequency of verbalizations, and the temporal intervals between them. Results showed that the temporal pattern of mother-child interchanges was characterized by significantly shorter pauses (<2 s) for mothers than for children. A variation in this pattern, consisting of pauses longer than 4 s, was associated with certain kinds of ongoing mother-child verbal behaviors. Thus mothers showed selectiveness, in varying degrees, in responding to the child's utterances, and their verbal responses had differential effects on the child's subsequent verbal performance. These effects were described as “initiating”, “maintaining”, or “ending” verbal chains, or else as “non-reacted” utternances. Moreover, the amount of verbalization by the children was positively correlated with the proportion of the mother's output that consisted of immediate responses to the child, and not with the total verbal output. 相似文献
32.
Stella M Yardino 《The International journal of psycho-analysis》2008,89(2):241-7; discussion 249-52, 259-60
33.
Snowdon CT de la Torre S 《Journal of comparative psychology (Washington, D.C. : 1983)》2002,116(2):182-188
There are multiple components to the concept of Umwelt experienced by an organism that may constrain the type and structure of communication signals as well as the usefulness of these signals. To illustrate the impact of these multiple environmental components, the authors used signals of the pygmy marmoset (Cebuella pygmaea), a small primate from the western Amazon. The authors summarize studies to show how the physical effects of the habitat; effects of other species, both predators and nonpredators; anthropogenic effects on the communication environment; within-group and between-groups influences other pygmy marmosets exert; and ontogeny influence the structure and usage of vocal signals. Communication within a species can be understood only in consideration of each of these contexts. 相似文献
34.
Cool and hot executive function as predictors of aggression in early childhood: Differentiating between the function and form of aggression 下载免费PDF全文
Sarah E. Poland Claire P. Monks Stella Tsermentseli 《The British journal of developmental psychology》2016,34(2):181-197
Executive function (EF) has been implicated in childhood aggression. Understanding of the role of EF in aggression has been hindered, however, by the lack of research taking into account the function and form of aggression and the almost exclusive focus on cool EF. This study examined the role of cool and hot EF in teacher reported aggression, differentiating between reactive and proactive as well as physical and relational aggression. Children (N = 106) completed laboratory tasks measuring cool (inhibition, planning, working memory) and hot EF (affective decision‐making, delay of gratification). Cool, but not hot, EF significantly contributed to understanding of childhood aggression. Inhibition was a central predictor of childhood aggression. Planning and working memory, in contrast, were significant independent predictors of proactive relational aggression only. Added to this, prosocial behaviour moderated the relationship between working memory and reactive relational aggression. This study therefore suggests that cool EF, particularly inhibition, is associated with childhood aggression across the different functions and forms. 相似文献
35.
Marco Innamorati Claudio Imperatori Michela Balsamo Stella Tamburello Martino Belvederi Murri Anna Contardi 《Journal of personality assessment》2014,96(6):632-639
Food craving (FC) might play an important role in the course of eating disorders and obesity. The question of its measurement has particular importance in relation to the dramatic growth in obesity rates and its relevance for public health. The aim of this study was to investigate the psychometric properties of the Italian version of the Food Cravings Questionnaire–Trait (FCQ–T) in overweight and obese patients who were attending weight loss programs, and its efficiency in discriminating patients with binge eating. Participants were 497 (411 women, 86 men) overweight and obese patients in treatment with low-energy diet therapy. We used structural equation modeling to compare 3 factor models tested in previous studies (a 6-factor model, an 8-factor model, and a 9-factor model), which indicated that the 9-factor model has a better fit over the competing models. The FCQ–T had good internal consistency (Cronbach's α of.96 for the total score, and between.76 and.92 for subfactors), and was able to discriminate patients with clinical-level binge eating from those with probable and without binge eating with an efficiency of.74 (sensitivity =.64, specificity =.78). FCQ–T scores were sensitive to changes associated with treatment only for patients who started dietary restriction between the baseline and the follow-up assessment, but not for patients who were already observing dietary restrictions at the time of the baseline assessment. These results suggest that the FCQ–T could be a potentially useful measure for the screening of binge eating problems in overweight and obese patients while in treatment. 相似文献
36.
Cristina Iani Giacomo Stella Sandro Rubichi 《Attention, perception & psychophysics》2014,76(4):1234-1241
Several studies have shown that the Simon effect, which is the advantage of spatial correspondence between stimulus and response locations when the stimulus location is task-irrelevant, decreases with increasing response times and is affected by preceding-trial correspondence. These modulations suggest the existence of control mechanisms that adapt our behavior to current goals by responding to the conflict experienced within a trial and by preventing the recurrence of a conflict in the subsequent trial. The aim of the present study was to assess whether these control mechanisms, which are well consolidated in adults and in children older than 8 years of age, are present in children between 6 and 8 years old. To this end, we tested 32 first-grade (6–7 years) and 34 second-grade (7–8 years) children on a Simon task in which correspondence sequence was manipulated on a trial-by-trial basis. The Simon effect was larger for first- than for second-graders and decreased with increasing response times only in second-graders. Crucially, for both groups, the effect was reduced when the preceding trial was noncorresponding, and the reductions were comparable for the two groups, indicating that trial-by-trial control mechanisms are already present in first-grade children and may be dissociated from within-trial control adjustments. 相似文献
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38.
While community-based groups are able to provide vital support to people living with HIV/AIDS (PLHIV), their organizational and technical capacities are limited, and they frequently operate in isolation from PLHIV groups. We evaluated a three-year project implemented by the International HIV/AIDS Alliance in Uganda to increase the involvement of PLHIV in the HIV/AIDS response and to improve access to and utilization of prevention, treatment, care, and support services for households affected by HIV/AIDS. Information sources included project monitoring data, interviews with 113 key informants, and 17 focus group discussions in 11 districts. The evaluation found that PLHIV groups reached large numbers of people with education and awareness activities and made a growing number of referrals to health facilities and community-based services. The project trained individuals living openly with HIV as service providers in the community and at designated health facilities. Their presence helped to reduce the stigma that previously deterred PLHIV from seeking care and encouraged individuals to disclose their HIV status to spouses and family members. The project has put into practice the widely endorsed principles of greater and meaningful involvement of PLHIV in a systematic manner and on a large scale. A wide audience--ranging from grassroots PLHIV networks and AIDS service organizations to national-level non-governmental organizations, government agencies, and international organizations--can benefit from the lessons learned. 相似文献
39.
While research on the spatial representation of number has provided substantial evidence for a horizontally oriented mental number line, recent studies suggest vertical organization as well. Directly comparing the relative strength of horizontal and vertical organization, however, we found no evidence of spontaneous vertical orientation (upward or downward), and horizontal trumped vertical when pitted against each other (Experiment 1). Only when numbers were conceptualized as magnitudes (as opposed to nonmagnitude ordinal sequences) did reliable vertical organization emerge, with upward orientation preferred (Experiment 2). Altogether, these findings suggest that horizontal representations predominate, and that vertical representations, when elicited, may be relatively inflexible. Implications for spatial organization beyond number, and its ontogenetic basis, are discussed. 相似文献
40.
Maria-Jose Sanchez-Ruiz Stella Mavroveli Joseph Poullis 《Personality and individual differences》2013
This study aimed at investigating the relationships between academic performance (AP) and cognitive ability, personality traits, and trait emotional intelligence (trait EI or trait emotional self-efficacy) in a sample of 323 (113 female) university students in Cyprus. The study also explored differences across university majors (i.e., computer sciences, business and management, electrical engineering, tourism and marketing, law and accounting, and psychology) in trait EI profiles. Trait EI predicted AP over and above cognitive ability and established personality traits. In addition, there were differences across university majors in trait EI scores; psychology students scored higher on trait EI than computer science, electrical engineering, and business and management students. Implications for studying trait EI in the context of higher education are discussed. 相似文献