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271.
实验从齐当别模型的视角,通过对决策过程反应时的考察分别对以累积预期理论(cumulative prospect theory)为代表的整合模型和启发式模型家族的重要成员--占优启发式模型(priority heuristic)--进行检验。结果表明,决策过程反应时并未随着占优启发式模型所假定的决策步骤的增加而变慢;也未随着选项之间整体值差值的变大而变快;模糊决策过程的反应时反而快于风险决策过程的反应时。无论是以累积预期理论为代表的整合模型还是占优启发式模型均不能满意地描述和解释人们的实际决策过程,而齐当别模型则能解释大部分实验结果。文章建议多角度、多指标探讨人们的决策过程,检验、修改、完善,以及建立新的启发式模型或决策过程模型(process model),以增进对人们如何进行风险决策的理解。 相似文献
272.
273.
未来取向应对的双阶段序列模型及其时间透视机制 总被引:1,自引:1,他引:1
最近的研究表明, 未来取向应对对于应激管理起着不可忽视的重要作用。但预先应对和预防应对的关系及其作用机制, 一直是困扰应对研究者的重要问题。我们的前期工作显示, 序列模型比平行模型能更好地表征预先应对和预防应对的内在关系, 时间透视比威胁知觉更能解释预防应对的前因。本项目首次以时间知觉和内隐态度为切入点, 探索未来取向应对机制的理论模型。研究内容拟包括:(1)以大学生就业为情境, 构建未来取向应对的双阶段序列模型; (2)以大学生入学适应为情境, 用内隐认知充实和验证未来取向应对的序列模型; (3)用时间折扣模型的任务范式, 探讨未来取向应对不同阶段的时间透视机制:(4)用威胁性和中性的阈下面孔作情绪启动, 验证未来取向应对不同阶段的时间透视机制。本研究为发掘预先应对和预防应对的关系及其内在机制, 及基于未来取向应对的干预在心理健康和教育领域的应用奠定了基础。 相似文献
274.
前人研究表明自动情绪调节能够自上而下地影响情绪及情绪性注意过程。近来有研究提示自动情绪调节与眶额皮层(orbitofrontal cortex, OFC)有关。也有研究表明左侧OFC的激活影响负性注意偏向。本研究采用经颅直流电刺激技术,考察阈下启动情绪控制目标条件下,抑制左侧眶额皮层兴奋性是否影响负性注意偏向。结果发现,使用阴极刺激抑制左侧OFC活动可以加快被试对与恐惧刺激位置一致的探测点的反应。该结果提示左侧眶额皮层是自动情绪调节下情绪性注意选择相关的重要脑区。 相似文献
275.
Zena R. Mello Sarah J. Barber Sara A. Vasilenko Julie Chandler Ryan Howell 《The British journal of developmental psychology》2022,40(1):92-111
We examined time perspective and self-esteem in adolescents, young adults, middle-aged adults, and older adults. Time perspective was measured with scales that assess relative orientations and relationships among the past, present, and future. Age effects were examined with standard analytic strategies to determine categorical differences between age groups and with new statistical techniques designed to show continuous age patterns. Findings indicated that (1) thinking about the future was greatest for adolescents and young adults and lowest for middle-aged and older adults, and thinking about the present increased across ages; (2) fewer adolescents and middle-aged participants perceived that the time periods were interrelated compared to younger and older adults; and (3) across ages, a greater emphasis towards the past compared to other time periods was associated with lower self-esteem, whereas emphasizing the present and the future jointly was associated with higher self-esteem. 相似文献
276.
At equal distance, the impedance created by traffic congestion strongly affects the duration of commute. Extant literature indicates that commute impedance negatively affects wellbeing, distinctly from the distance and the duration of commute. These negative effects are reported to be larger for women. Consequently, workers, especially females, must be willing to accept lower wages if reaching the job location entails fewer traffic congestions and accommodates a speedier commute. Using the Canadian General Social Survey of 2015 and the Census of 2016, the present paper assesses the wellbeing and wage consequences of commute impedance on men and women who drive to work. The study first demonstrates that the negative impact of commute impedance on wellbeing is greater for women. Second, consistent with the greater negative effect of traffic congestion on their wellbeing, women appear to pay a price off their wages, in order to avoid commute impedance. The policy implications are discussed. 相似文献
277.
Online testing of infants by recording video with a webcam has the potential to improve the replicability of developmental studies by facilitating larger sample sizes and by allowing methods (including recruitment) to be specified in code. However, the recorded video still needs to be manually scored. This labour-intensive process puts downward pressure on sample sizes and requires subjective judgements that may not be reproducible in a different laboratory. Here we present the first fully automatic pipeline, using a face analysis software-as-a-service and a discriminant-analysis classifier to score infant videos acquired online. We compare human and machine performance for looking time and preferential looking paradigms; machine performance demonstrates a promising proof of principle for looking time and is above chance in classifying preferential looking. Additionally, we studied the characteristics of the video and the child that influenced automated scoring, so that future studies can acquire data that maximises the performance of automatic gaze coding and/or focus on improving automatic coding for particularly challenging data. We believe this technology has great promise for developmental science. 相似文献
278.
On the measurement of time allocation on multiple variable-interval schedules 总被引:3,自引:3,他引:0
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Six pigeons were trained on a modified multiple-schedule procedure. In a three-key chamber, the center key was lighted red or green, depending upon which component schedule was in effect. A response on this key transferred this color to each of two side keys, and responses on one of those keys produced reinforcers according to the component schedule. After 2 s, the side-key lights were extinguished, the center key was reilluminated, and a further center-key response was required to give access, as before, to the component schedules. Components alternated every 3 min. This limited-access procedure allowed both times spent switched into the side keys and time spent not switched in to be measured in the two components. Component reinforcer rates were varied over eight experimental conditions. Both component response rate and component time allocation were increasing functions of relative component reinforcer rate, and these functions were not significantly different. This finding implies that local response rates (responses divided by time switched in) were unaffected by changing component reinforcer rates on multiple schedules. Because a similar result was recently obtained for concurrent schedules, models of multiple and concurrent-schedule performance may need to consider only the time allocation of behavior emitted at equal tempo in the component schedules. 相似文献
279.
We assessed the efficacy of time delay and peer modeling procedures in increasing autistic children's spontaneous verbalizations of affection. Four autistic children were taught to spontaneously say “I like (love) you” in response to a hug from a familiar person and their mother. Generalization from a free play training setting to free play outdoors and at home was assessed. Ancillary social and affection behaviors were also observed. Results indicated that the time delay was a quick and effective procedure for all the children. Peer modeling was unsuccessful in teaching the target behavior. 相似文献
280.
1981年,全国利手研究协作组对基诺族的左右利手分布作了首次调查。这次调查的结果是,基诺族全部是强右利手。这是一个非常特殊的结论。为此,一九八九年我们对基诺族的左右利手分布又作了一次调查。调查发现,基诺族并不都是强右利手,他们当中既有一般的右利手,也有混合利手,还有左利手,甚至有1.79%的强左利手。基诺族的左利率高于汉族,但与其他少数民族接近。基诺族的左利率偏高占其传统文化有关。全国利手研究协作组的调查结果应该修正。 相似文献