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961.
The authors examined the effects of the degree of impairment of the contralesional upper limb and the side of the hemispheric damage on ipsilesional upper limb performance in chronic stroke individuals. Right- and left-side stroke resulting in mild-to-severe impairment and healthy participants took part in simple and choice reaction time tasks involving aiming movements. The stroke individuals performed the aiming movements with the ipsilesional upper limb using a digitizing tablet to ipsi- or contralateral targets presented in a monitor. The global performance of the group with severe right hemispheric damage was worse than that of the other groups, indicating that the side of hemispheric damage and degree of motor impairment can adversely affect aiming movement performance.  相似文献   
962.
The authors investigated how visual information from the nondominant and dominant eyes are utilized to control ongoing dominant hand movements. Across 2 experiments, participants performed upper-limb pointing movements to a stationary target or an imperceptibly shifted target under monocular-dominant, monocular-nondominant, and binocular viewing conditions. Under monocular-dominant viewing conditions, participants exhibited better endpoint precision and accuracy. On target jump trials, participants spent more time after peak limb velocity and significantly altered their trajectories toward the new target location only when visual information from the dominant eye was available. Overall, the results suggest that the online visuomotor control processes that typically take place under binocular viewing conditions are significantly influenced by input from the dominant eye.  相似文献   
963.
964.
This study examines the individual and contextual factors associated with sociopolitical control expressed by immigrants in southern Spain. We used hierarchical linear modeling to evaluate the relations between individual (community participation, social connectedness, and perceived cultural competence of receiving community services) and municipality characteristics (city community participation, city social connectedness, and city community services’ cultural competence) and immigrants’ feelings of sociopolitical control. Data were analyzed using a two‐level model based on 707 Moroccan immigrants in 25 municipalities. After adjusting for gender, educational level, and psychosocial confounding factors, we observed a positive association between social connectedness and sociopolitical control at the individual level. At the contextual level, we observed a positive association between (a) city community participation, (b) city social connectedness, and (c) city community services’ cultural competence, and sociopolitical control. Indeed, living in a municipality where there are community services with high levels of cultural competence and where, on average, many people participate in organizations and neighbors are connected, was associated with higher levels of perceived control in the sociopolitical domain for immigrants. We also discuss implications for community‐based research and practice.  相似文献   
965.
During middle adolescence, elevated stress and a greater presence of psychological disorders have been documented. The research has paid little attention to the regulation of positive affective states. Fredrickson's broaden‐and‐build theory suggests that cultivating positive emotions helps to build resources that boost well‐being. The current research aimed to examine the longitudinal associations between responses to positive affect (emotion‐focused positive rumination, self‐focused positive rumination, and dampening) and psychological adjustment (self‐esteem and life satisfaction) during middle adolescence. A longitudinal study with two waves separated by one year was conducted, assessing 977 adolescents (M = 13.81, SD = 0.79; 51.5% boys) with self‐report measures. A cross‐lagged panel analysis was performed by including within the same model the relationships between all of the variables in the two assessment points. The results indicated cross‐lagged positive relationships of self‐focused positive rumination with both self‐esteem and life satisfaction, while dampening showed a negative cross‐lagged relationship with self‐esteem. Moreover, higher self‐esteem predicted more emotion‐focused positive rumination, and more dampening predicted lower life satisfaction. Thus, the use of adaptive responses to positive affect and a better psychological adjustment were found to be prospectively interrelated at the one‐year follow‐up during middle adolescence. The discussion argues for the need to implement programmes to promote more adaptive responses to positive affect to enhance psychological adjustment in the adolescent transition to adulthood.  相似文献   
966.
采用交叉滞后设计,以父母心理控制问卷和儿童显在焦虑量表为研究工具,对北京市13所中学1419名初一学生进行了连续三年的追踪测查,探讨父母心理控制与青少年焦虑之间的关系。结果表明:(1)三年间父母心理控制和青少年焦虑之间均呈显著正相关;(2)父母心理控制与青少年焦虑的关系基本符合互惠效应模型,且相比于父母效应,儿童效应更稳定,表现为:初一的青少年焦虑能显著正向预测初二的父母心理控制,同时,初二的青少年焦虑也能显著正向预测初三的父母心理控制;但只有初二的父母心理控制可以显著正向预测初三的青少年焦虑;(3)父母心理控制和青少年焦虑的互惠效应模型不存在显著的儿童性别差异。  相似文献   
967.
本研究以226名学前儿童和其父母为研究对象,从儿童气质-家庭环境交互作用的视角,采用父母报告的方法收集数据,考察了父母心理控制及儿童消极情绪性对儿童问题行为的共同作用。结果发现:在预测外化问题时,父亲和母亲心理控制的主效应均显著,同时父亲心理控制与儿童消极情绪性的交互作用也显著。显著性区域分析发现,高消极情绪性的学前儿童更易受高父亲心理控制的不利影响,也更易受低父亲心理控制的有利影响,该结果支持差别易感性模型;在预测内化问题时,父亲和母亲心理控制的主效应及其与儿童消极情绪性的交互作用均不显著,说明无论是对高消极情绪性还是低消极情绪性儿童,父母心理控制对其内化问题的影响相对较弱。  相似文献   
968.
汶川地震8.5年后,对地震极重灾区的2291名青少年进行问卷调查,考察其创伤后应激障碍(PTSD)、抑郁、创伤后成长(PTG)和生活满意度等身心反应的现状及其共存形态。结果发现:(1)地震发生8.5年后4.75%的青少年有明显的PTSD症状,29.98%的青少年有明显的抑郁症状,其中女生、少数民族学生、高年级学生的症状水平更高;46.13%的青少年报告其出现了明显的PTG,其中女生和少数民族学生的PTG水平更高;青少年的生活满意度较低,其中初一年级显著高于其他年级,但性别和民族差异不显著;(2)青少年的PTSD与抑郁呈显著正相关、与生活满意度呈显著负相关、与PTG相关不显著,抑郁与PTG和生活满意度呈显著负相关,PTG与生活满意度呈显著正相关;(3)青少年的PTSD、抑郁、PTG和生活满意度之间具有共存的形态,具体表现为成长组(32.6%)、低症状组(39.4%)、症状-成长共存组(5.8%)、中等症状共病组(17.8%)和高度症状共病组(4.4%)等5种类别。  相似文献   
969.
本研究基于双重认知控制理论,通过比较学困组和对照组在持续性操作任务上的表现来探究学习困难青少年的认知控制特点。结果发现:(1)在反应性控制的指标上,学困组和对照组的反应时和正确率不存在显著差异,但学困组对探测刺激的辨别力指数更低,显示学困组的反应性控制能力存在一定不足;(2)在主动性控制的指标上,学困组的反应时更长、正确率更低,且对线索刺激的辨别力指数更低,显示学困组在对线索刺激保持的各项指标上都比对照组更差,说明学困组在主动性控制上的缺陷更为明显。  相似文献   
970.
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