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Using a speeded word fragment completion task, we assessed age differences in the automatic accessibility of emotional versus neutral words from semantic memory. Participants were instructed to complete a series of single-solution word fragments as quickly as possible. The results demonstrate that older adults are biased against accessing both positive and negative words relative to neutral words, whereas young adults are biased against accessing positive words only. These findings suggest an arousal-based accessibility bias favouring neutral stimuli in older adults coupled with a valence-based bias accessing negative and neutral stimuli for young adults. 相似文献
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This study investigated the effect of isoflavone aglycone (IA) on the learning and memory performance of senescence-accelerated mice, and explored its neural protective mechanism. Results showed that SAM-P/8 senescence-accelerated mice treated with IA performed significantly better in the Y-maze cognitive test than the no treatment control (P<0.05). The cortex AchE activity, serum SOD and GSH-Px activities were notably higher (P<0.05). MDA concentration and the β-secretase activity in the hippocampal tissue were both lower (P<0.05). Additionally, the number of hippocampal neurons was increased and cell morphology was significantly improved. Data suggested that IA could indirectly increase concentration of the cholinergic neural transmitter Ach through regulation of AchE, therefore improving the central cholinergic function and enhancing the learning and memory ability. By reducing the β-secretase activity, IA could decrease the formation and deposition of insoluble Adebris, relieve the resulted toxicity and damage to neurons, and thereby effectively protect the nervous system. 相似文献
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Yanfen You Jingjing Pan Xiaojing Yang Xianzheng Fei 《Journal of Consumer Psychology》2022,32(3):509-516
Multifunctional products are ubiquitous in consumers' daily lives. However, scant research has examined whether and how the presence of multifunctional products systematically alters consumer behavior beyond product evaluations and adoption. Across four experiments and three supplementary studies, the authors identify a multifunction-impatience effect. They show that after exposure to multifunctional (vs. single-function) products, consumers are more likely to choose a smaller but sooner (vs. a larger but later) reward (Study 1), report more impatience when waiting for the web search results to load and perceive the loading time as longer (Study 2), and are willing to pay more for expedited shipping (Study 3). The authors further show that the effects occur because multifunctional products activate an efficiency goal among consumers, which renders them less patient (studies 2 and 3). In addition to the regular, “sequential” multifunctional products for which each of the functions has a specific usage situation, the proposed effect also applies to “simultaneous” multifunctional products whose functions operate simultaneously during consumption (Study 4). Taken together, this research broadens the scholarly understanding of the effects of multifunctional products from consumers' responses to these products to the unintended impact of such products on consumer impatience. 相似文献
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Yao Xiaonan Wu Junhui Guo Zhen Yang Ying Zhang Mengyuan Zhao Yudi Kou Yu 《Journal of child and family studies》2022,31(7):2039-2049
Journal of Child and Family Studies - Drawing on self-determination theory and problem-behavior theory, we tested the relation between parental psychological control and adolescents’... 相似文献
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讨论医院重点专科发展过程的阶段划分及特征,对于我们在重点专科建设中正确地把握方向、恰当地评估成效和有力地予以推进都有十分重大和现实的意义。本文把医院重点专科发展过程分为科室建设、学科建设、科学建设阶段,并从功能目标、效率效益、人才队伍、场地设施、技术设备、技术特色、教学培训、科学研究、文化氛围、能级水平十个方面对各阶段的特征进行归纳描述。三个阶段各具不同内涵特征,又存在相互内在关联,具有方向性、连续性、可加速性、交叉性和包涵性等规律。 相似文献
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该研究采用图片启动和句子完成范式,考察汉语形容词的性别编码及对句子加工的影响.结果表明:(1)图片的性别信息对形容词性向判断具有重要影响;(2)形容词性向影响被试对句子主语的选择.被试倾向于选择与形容词性向一致的代词为句子主语.对中性形容词,被试选择句子主语的时间更长.整个研究表明,在汉语形容词加工中存在性别编码. 相似文献
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以应激-易感模型为依据考察冲动性特质与自杀意念的关系,并在此基础上提出一个有调节的中介模型,探讨负性生活事件影响的中介作用以及家庭环境的调节作用。采用巴瑞特冲动性量表、青少年生活事件量表、家庭环境量表、贝克自杀意念量表对902名大学生进行集体施测,旨在考察负性生活事件的影响对大学生冲动性特质与自杀意念的中介作用以及家庭环境的调节作用,结果表明:(1)冲动性特质和负性生活事件的影响能正向预测大学生的自杀意念;(2)负性生活事件的影响在冲动性特质和自杀意念之间起中介作用;(3)负性生活事件影响的中介作用和冲动性特质的直接作用受家庭环境的调节。这些结果对于综合解释环境与个体因素对自杀意念的作用与机制具有重要意义。 相似文献