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71.
Jin H. Yan Malcolm B. Dick 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(3-4):385-410
ABSTRACT This research was designed to test the hypothesis that motor practice can enhance the capabilities of motor control in healthy controls (NC) and patients with a diagnosis of probable Alzheimer's disease (AD) and mild cognitive impairment (MCI), and consequently results in better motor performance. Approximately half of the subjects in the NC (n = 31), AD (n = 28), and MCI (n = 29) either received or did not receive practice on a task of fast and accurate arm movement with a digitizer. Changes in movement time (MT), movement smoothness (jerk), and percentage of primary submovement (PPS) were recorded and compared among the three groups across six blocks of trials (baseline and five training sessions). For all subjects, practice improved motor functions as reflected by faster and smoother motor execution, as well as a greater proportion of programming control. Compared to unaffected matched controls, AD and MCI subjects exhibited a greater reduction in movement jerk due to practice. Movement time and PPS data revealed that motor practice appeared to reduce the use of “on-line” correction adopted by the AD or MCI patients while performing the aiming movements. Evidently, their arm movements were quicker, smoother, and temporally more consistent than their untrained peers. The findings of this study shed light on how MCI and AD may affect motor control mechanisms, and suggest possible therapeutic interventions aimed at improving motor functioning in these impaired individuals. 相似文献
72.
采用三角验证法对长春180名10.1-15.3岁儿童进行研究,以自然范畴的事物、家庭内外事件和熟悉的文本为测验材料,探测了儿童对图式特征的认知特点。结果发现:(1)儿童对自然范畴、事件、文本图式特征的认知存在三级水平:①成分水平,②成分与整体水平,③整体水平。这三级水平与儿童思维特点相一致并受生活经验或事件的制约。(2)儿童对三类图式特征认知是随年龄的升高而不断提升的,其标志是对图式本质的理解、概括与把握不断加深,到13岁以后儿童对三类图式特征的认知发展迅速。 相似文献
73.
日本对自杀的心理学研究 总被引:8,自引:0,他引:8
20世纪 50年代以来 ,日本青少年自杀率急剧上升 ,为了更好地实施危机干预 ,日本学者对自杀行为进行了广泛的研究。研究呈现出由关注宏观的社会因素转向更加关注个体的心理和个性特征的趋势 ,取得了一些很有价值的研究成果。本文综述了日本学者对自杀的内涵、分类、年龄特征、性别特征、动机、手段、自杀前的心理特征和自杀预防的研究成果。 相似文献
74.
中学生厌学心理及其干预与学习效率的相关研究 总被引:17,自引:1,他引:16
本研究旨在考察两个问题:1.心理咨询是否是改变中学生厌学心理的有效途径,如果是,它能够在多大程度上改变厌学心理;2.厌学心理的改善能否有效提高中学生学习效率。本实验用问卷调查法从183名中学生中筛选出有厌学心理的学生24名。运用个体心理咨询、团体心理咨询等手段对这24名学生进行为期4个月干预、结果表明:心理咨询能够有效且明显地改善厌学心理。但要完全消除厌学心理则还需要辅以其他干预手段;随着学生厌学心理的改善,其学习效率也相应有了明显的提高。 相似文献
75.
The present study was designed to compare the psychological well-being of mothers of children with mental retardation in the USA and Korea. The Double ABCX model of stress proposed by McCubbin and Patterson (1983) was evaluated for the two national groups. Thirty-eight American and 40 Korean mothers participated in the home-visit interview. The path models in the present study partially supported the ABCX model, but different path models for the two national groups provided important explanations for the well-being of mothers from the two nations. The cause of stress for the American mothers was specific to the individual variables. For Korean mothers, cultural values that carry social influence were more strongly associated with their attitudes towards the child and their experience of stress. 相似文献
76.
婚姻关系、亲子关系对3~6岁幼儿心理行为问题的影响 总被引:15,自引:0,他引:15
采用CBCL量表、自编的婚姻关系和亲子关系问卷调查了6所城市幼儿园的457名3~6岁幼儿,结果发现:(1)本研究中3~6岁幼儿心理行为问题的检出率为15.10%;(2)3-6岁幼儿的心理行为问题主要表现为交往不良、攻击性等外部行为问题;(3)没有心理行为问题的幼儿家庭其婚姻关系在性格相容、问题解决和性生活方面显著优于有心理行为问题的幼儿家庭,但在经济条件方面则相反;(4)婚姻关系和亲子关系则呈显著的正相关,并共同影响幼儿的心理行为问题。 相似文献
77.
选择性注意加工机制上学困生和学优生的比较研究 总被引:14,自引:3,他引:11
本实验使用正、负启动技术 ,在严格控制各种条件下比较学困生和学优生在选择性注意加工机制———目标激活和分心物抑制方面的差异 ,进而探讨学困生在选择性注意加工机制上所存在的问题。结果显示 ,学困生和学优生的正启动量差异不显著 (p >0 .0 5 ) ,但学困生的负启动量显著小于学优生 (p <0 .0 0 1。这一结果说明 ,学困生在对目标反应期间易受分心物干扰 ,其抑制分心物干扰的能力较弱。同时启示我们应注重训练学困生抑制分心物干扰的能力 相似文献
78.
Addie Ehrenstein Richard Schweickert Sangsup Choi Robert W. Proctor 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》1997,50(4):766-802
Humans must often use working memory to execute processes one at a time because of its limited capacity. Two experiments tested where limits in access to working memory occur. Subjects searched a short-term memory set for one stimulus digit and performed mental arithmetic with another stimulus digit. In one experiment, they were told to carry out the mental arithmetic before the memory search and to make the arithmetic response first. In the other, they were instructed to perform the tasks in the opposite order. The overt responses were executed in the prescribed order. Moreover, the covert working memory processes were executed in the prescribed order, as revealed by a critical path network analysis of reaction times. Results are explained in terms of a double-bottleneck model in which central processes and responses are constrained to be carried out for one task at a time. 相似文献
79.
Ki Joo Choi 《The Journal of religious ethics》2010,38(2):269-296
This essay provides an interpretation of Jonathan Edwards's moral thought that calls attention to the motif of perception in his conception of true virtue. The aim is to illumine the extent to which Edwards's virtue ethics can be included in and contribute to prevailing approaches to virtue in contemporary theological ethics. To advance this proposal, this essay attends to the question of moral agency that Edwards's reflections on charity, the new spiritual sense, and religious affections raise. This procedure offers an acute sense of the significance of perception for Edwards's virtue ethics, which in turn allows for a constructive Edwardsean entry into current theological discussions on the narrative character of virtue. 相似文献
80.