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241.
Studies examining a relationship between attention deficit hyperactivity disorder (ADHD) and relative visual inattention towards left space have produced inconsistent results. Here, based on previous studies with adult neurological patients who show very severe inattention to the left, we examine whether any spatial bias in ADHD may be modulated by changes in alertness levels. In a single case, we found that inattention to the left--that was intermittently apparent--dramatically increased as a function of time-on-task. No significant changes were observed on the right. The implications for clinical assessment and research design are discussed. 相似文献
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Chris Stewart Ph.D. Ada C. Mezzich Ph.D. Bang-Shiuh Day M.I.S. 《Journal of child and family studies》2006,15(5):542-553
We aimed at determining the association of both severity of paternal and maternal substance use disorder (SUD) and psychiatric disorders with paternal child neglect severity during late childhood. The sample comprised 146 intact SUD (n=71) and non SUD (n=75) families with a 10–12 year old female or male biological offspring. The average age of fathers, mothers, and children was 44 (SD=5.9), 42 (SD=4.78), and 11 (SD=.79) years, respectively. The ethnic composition was 85% Caucasian and 15% African American. The results showed that paternal and maternal SUD and psychiatric disorders severity was correlated with paternal child neglect severity. However, paternal psychopathology failed to achieve significance in the regression analyses. Severity of maternal, especially severity of antisocial personality disorder symptoms was associated with paternal child neglect. These results are discussed within the framework of evolutionary psychology research examining paternal investment in the offspring. Implications for the necessity of identifying parental psychopathology and an integrated treatment approach are discussed. 相似文献
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自我概念影响选择性记忆的理论模型与研究 总被引:1,自引:0,他引:1
关于自我概念对个人选择性记忆的影响及其机制问题目前主要存在不一致—负性忽略模型和关联模型两种解释。前者假定,个人努力忽略对与其积极自我概念不一致或冲突信息的加工,以维持其自我概念的稳定性,但该模型忽视了自我概念的个别差异。后者则假定,自我概念对选择性记忆的影响是由评价性信息与自我概念的关联程度决定的,并质疑记忆的心境一致性效应,但该模型无法解释积极自我概念者面临消极心境和消极自我概念者面临积极心境时对外部信息的记忆模式。未来研究有必要考察即时性心境状态下不同自我概念对选择性记忆加工的影响,以促进对自我概念和心境状态影响记忆选择性及其机制的深入理解。 相似文献
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工作记忆可以同时保存多个信息并且容量有限, 这一内在机制是工作记忆研究的重点问题。视觉和言语等研究领域都发现工作记忆能够存储多个信息单元, 但对振动触觉工作记忆是否能存储多个频率信息目前尚无相关研究。由于振动触觉频率刺激和视觉刺激具有不同的神经编码机制, 以及振动频率信息是通过躯体感觉产生的模拟的、单维的、参数化信息, 振动触觉工作记忆容量及其加工存储机制的研究也必不可少。首先, 本项目将采用新的实验范式, 探究不同的刺激呈现方式以及不同反应报告方式下, 振动触觉工作记忆的容量及其认知机制。其次, 本项目也将同时运用功能磁共振成像(fMRI)技术, 来阐述振动触觉工作记忆加工存储的神经机制。探究基于触觉频率信息的参数工作记忆容量及其神经机制是完善工作记忆模型的重要补充, 将有助于提高我们对工作记忆系统的理解, 并为视觉、听觉、触觉多模态感知觉信息的跨通道研究奠定基础。 相似文献
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本研究修订编制适合测量学前儿童的中文版父母报告高敏感儿童量表,并在学前儿童家长群体中进行信效度检验。通过文献分析,建构了学前儿童高感觉加工敏感性的结构模型,在参考国外量表题目的基础上,编制了初始量表。按照量表编制流程先后对1633名3~6岁学前儿童家长进行问卷测试,通过项目分析、探索性与验证性因素分析对初始量表进行题目删减与维度确定,最终形成了包括易刺激性、审美敏感性和低感觉阈限三个维度的中文版父母报告高敏感儿童量表。进一步分析表明,中文版父母报告高敏感儿童量表信效度符合统计学要求,能够作为测量我国学前儿童感觉加工敏感性的有效工具。 相似文献
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Nicolas Masson Mauro Pesenti Valérie Dormal 《British journal of psychology (London, England : 1953)》2016,107(3):467-483
Previous studies have shown that left neglect patients are impaired when they have to orient their attention leftward relative to a standard in numerical comparison tasks. This finding has been accounted for by the idea that numerical magnitudes are represented along a spatial continuum oriented from left to right with small magnitudes on the left and large magnitudes on the right. Similarly, it has been proposed that duration could be represented along a mental time line that shares the properties of the number continuum. By comparing directly duration and numerosity processing, this study investigates whether or not the performance of neglect patients supports the hypothesis of a mental time line. Twenty‐two right brain‐damaged patients (11 with and 11 without left neglect), as well as 11 age‐matched healthy controls, had to judge whether a single dot presented visually lasted shorter or longer than 500 ms and whether a sequence of flashed dots was smaller or larger than 5. Digit spans were also assessed to measure verbal working memory capacities. In duration comparison, no spatial‐duration bias was found in neglect patients. Moreover, a significant correlation between verbal working memory and duration performance was observed in right brain‐damaged patients, irrespective of the presence or absence of neglect. In numerical comparison, only neglect patients showed an enhanced distance effect for numerical magnitude smaller than the standard. These results do not support the hypothesis of the existence of a mental continuum oriented from left to right for duration. We discuss an alternative account to explain the duration impairment observed in right brain‐damaged patients. 相似文献