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Arithmetic word-problem-solving in Huntington's disease 总被引:1,自引:0,他引:1
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Bilingualism and adult differences in inhibitory mechanisms: evidence from a bilingual stroop task 总被引:1,自引:0,他引:1
Mohamed Zied K Phillipe A Pinon K Havet-Thomassin V Aubin G Roy A Le Gall D 《Brain and cognition》2004,54(3):254-256
The present investigation examined the functioning of inhibitory mechanisms in younger and older bilinguals using a bilingual version of the Stroop test. The study predicted different patterns of age related decline in inhibitory mechanisms (inter- and intralingual interference) in bilinguals depending on their level of proficiency. Consistent with expectations, older bilinguals were slower when they responded in their non-dominant language. Furthermore, older unbalanced bilinguals showed greater interlingual interference when they responded with their second language to visual stimuli written in their dominant language. Balanced bilinguals showed equivalent interference effects between all conditions. These findings suggest that manipulating two languages may enhance the efficiency of inhibitory mechanisms. 相似文献
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Dogs' capacity to 'catch' human yawns has recently attracted the attention of researchers in the field of animal cognition. Following recent studies suggesting that contagion yawning in humans, and some other primates, is empathy-related, some authors have considered the possibility that the same mechanism may underlie contagious yawning in dogs. To date, however, no positive evidence has been found, and more parsimonious hypotheses have been put forward. The present study explored the 'contagion-only' hypothesis by testing whether the mere sound of a human yawn can be sufficient to elicit yawning in dogs, in a way that is unaffected by social-emotional factors. Unexpectedly, results showed an interesting interplay between contagion and social effects. Not only were dogs found to catch human yawns, but they were also found to yawn more at familiar than unfamiliar yawns. Although not allowing for conclusive inferences about the mechanisms underlying contagious yawning in dogs, this study provides first data that renders plausible empathy-based, emotionally connected, contagious yawning in these animals. 相似文献
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Most studies regarding the role of teacher-child relationships for children's early school adjustment use only teacher ratings of relationship quality. The current study examines (a) the agreement between teacher and observer ratings, (b) whether similar patterns of relations with behavioral engagement are obtained across informants, and (c) which informant matters the most in the prediction of engagement. Teacher and observer ratings of teacher-child closeness, conflict, and dependency were gathered for a sample of 148 kindergartners and their teachers at three measurement occasions. Teacher and observer reports converged to a moderate degree but only when considering multiple occasions and ruling out occasion-specific variance. Although some relations with behavioral engagement were similar, only teacher ratings had unique, added value in this prediction. 相似文献
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ACOUSTIC ANALYSIS OF ORAL PRODUCTIONS OF INFANTS LATER DIAGNOSED WITH AUTISM AND THEIR MOTHER 下载免费PDF全文
Julie Brisson Karine Martel Josette Serres Sylvain Sirois Jean‐Louis Adrien 《Infant mental health journal》2014,35(3):285-295
Research on early signs of autism in social interactions often focuses on infants’ motor behaviors; few studies have focused on speech characteristics. This study examines infant‐directed speech of mothers of infants later diagnosed with autism (LDA; n = 12) or of typically developing infants (TD; n = 11) as well as infants’ productions (13 LDA, 13 TD). Since LDA infants appear to behave differently in the first months of life, it can affect the functioning of dyadic interactions, especially the first vocal productions, sensitive to expressiveness and emotions sharing. We assumed that in the first 6 months of life, prosodic characteristics (mean duration, mean pitch, and intonative contour types) will be different in dyads with autism. We extracted infants’ and mothers’ vocal productions from family home movies and analyzed the mean duration and pitch as well as the pitch contours in interactive episodes. Results show that mothers of LDA infants use relatively shorter productions as compared to mothers talking to TD infants. LDA infants’ productions are not different in duration or pitch, but they use less complex modulated productions (i.e., those with more than two melodic modulations) than do TD. Further studies should focus on developmental profiles in the first year, analyzing prosody monthly. 相似文献
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This study examined the perceptions of self and the attachment relationship to parents in aggressive and nonaggressive rejected children, as compared to children with an average or popular sociometric status. Participants were 216 children from grades 3 and 4. They completed peer nomination measures, the Self-Perception Profile for Children (SPPC), and the Security Scale (mother and father form). Results generally confirmed the assumption that only the nonaggressive rejected children perceive themselves as less competent and worthy as a person than the more popular children. Aggressive rejected children did not report lower feelings of global self-worth or competence, although they did report lower levels of social acceptance. Furthermore, rejected-nonaggressive children perceived the relationship with their father (but not with their mother) as less secure than did the more popular children. Logistic regression analyses suggested that the linkage between felt security with father and rejected-nonaggressive status was mediated by children's self-worth. Implications for attachment theory and for the hypothesized heterogeneity among rejected children are discussed. 相似文献