数量化维度特征搜索的影响因素探索

有关数量化维度特征搜索的研究表明 ,目标搜索斜率 (反应时间对呈现项目数量函数的斜率 )是由目标与干扰子之间的差异决定的 ,然而以往研究中其差异的值取决于具体的实验条件。根据韦伯定律 ,笔者推测 ,目标搜索斜率应由目标与干扰子之间的相对差异 (C)决定 ,C为目标值 (T)与干扰子值 (D)的差值与该干扰子值的比值。当C值对应相等时 ,不同几何形状刺激的目标搜索斜率应无差异。为此笔者分别采用圆 (实验一 )和三角形 (实验二 )进行实验研究。实验结果支持了上述假设 ,并发现目标大于干扰子时的目标搜索斜率对C值的函数是单调递减函数     

青少年时间管理倾向相关因素的研究

本研究探讨时间管理倾向与学生学业成绩、自我价值感和主观幸福感三者的关系,进一步验证个人的时间管理倾向与生活质量的关系。对重庆和成都两地三组1387名大、中学生(重庆312名中学生、339名大学生,成都736名中学生)的问卷调查研究发现：(1)时间监控观对学业成绩具有一定的预测作用,时问价值感和时间效能感是通过时间监控观来影响学业成绩。(2)时间管理倾向各维度与总体、一般和特殊自我价值感之间存在显著的正相关。随着自我价值感抽象程度的降低,时间管理倾向对自我价值感的影响程度也就越大。(3)时间管理倾向各维度与积极情绪之间存在显著正相关,与消极情绪之间存在显著负相关。时间管理的好坏可能是影响主观幸福感的一个重要因素。     

汉字识别中形音义激活时间进程的研究(Ⅰ)

分别采用基于语义的和基于语音的启动范畴判断作业,在不同的SOA条件下,考察高频汉字识别中形音义信息激活的相对时间进程。两个实验的结果表明,高频汉字形音义激活的时序为字形—字义—字音的顺序。这一结果揭示,高频汉字字义的提取更符合直通理论的预期。高频汉字的语音是自动激活的,但语音的激活可能发生在字义通达之后。     

Implicit learning revealed by the method of opposition

Complex information, such as that required for motor skills, can be learned implicitly, without awareness. Much debate has centered on the appropriate methods for proving that implicit learning is not influenced by explicit awareness. A recent study by Destrebecqz and Cleeremans has provided compelling evidence for implicit sequence learning without awareness by using the ‘method of opposition’.     

Correlation between inspection time and psychometric abilities: A personal interpretation

More than 25 years of research suggests that the measure inspection time (IT) does capture low-level aspects of cognitive functioning that contribute to human intelligence. However, recent evidence does not support earlier claims that IT estimates the speed of a single mechanism like “sampling input” or “apprehension.” Rather, together with other tasks that employ pattern backward masking to limit the duration for which information is available for processing, IT is probably sensitive both to focused attentional capacities to detect organization and change under severe time constraints and to decision processes, ongoing beyond mask onset, that monitor responding. Among normal young adults, IT is correlated with the broad psychometric factor Gs (“speediness”). This mediates correlation with general intelligence. In this group, IT is not correlated with Gf. However, whether this outcome generalizes to samples of persons with an intellectual disability, to young children, or to elderly persons is not yet known. Psychological processes underpinning IT are currently only speculatively defined, but it should prove possible to unravel these by experimentation. To this end, backward masking procedures are arguably more theoretically tractable than reaction time tasks because they reduce the impact of higher-level cognitive strategies on performance. On this basis, IT may hold promise as a means for developing partial explanations for intelligence in psychological terms. However, whether this is realized depends on identifying the psychological functions that support IT.     

Examining neurochemical determinants of inspection time: Development of a biological model

Inspection time (IT), an information-processing correlate of psychometric intelligence, has been extensively studied. Previous research has shown that IT is a reliable correlate of psychometric intelligence across different developmental periods, mirroring developmental trends of fluid intelligence. Despite this extensive previous literature, very little is known about the biological basis of IT. In the present review, we discuss recent results from our laboratories examining the neurochemical determinants of IT. In this review, we outline the significance of several studies in which performance on the IT task is measured before and after modulating key human central nervous system (CNS) neurotransmitters and receptor systems (e.g., cholinergic, serotonergic, noradrenergic, and dopaminergic systems). The results of these studies indicate a primarily cholinergic basis for IT, although other aspects of psychometric intelligence may have serotonergic and dopaminergic determinants in addition to a cholinergic basis. The results are consistent with data reporting cholinergic depletion and impaired IT performance in dementia of the Alzheimer's type (DAT). Speculatively, we propose that compounds that enhance the release of the neurotransmitter acetylcholine (Ach) will improve IT and the variance that IT shares with IQ test performance.     

语言产生中词频效应老化的神经基础与时间进程

词频效应指语言产生中人们对高频词汇的加工比低频词汇更快更准确的一种现象,它可能发生在语言产生中的不同阶段。对青年人和老年人词频效应的不同特点和加工机制进行比较,可以考察语言产生的认知老化机制。通过语言产生理论可对词频效应的老化进行预测,提出词频效应在个体发展和老化阶段的相对稳定性,分析老化导致词频效应相关的神经基础和加工时间进程的改变。未来研究可进一步分离词频效应与习得年龄效应对语言产生老化的影响,并扩展至神经退行性疾病患者中。     

计算机控制心理学实验过程的计时误差分析

计算机在控制心理学实验过程中,可能引入各种潜在的计时误差,特别在短时呈现各种实验刺激时,有些误差是不应忽略的。本文重点分析屏幕刷新率对实验设计的限制及可能产生的计时误差和解决方法。     

时间间隔与未来事件效价：解释水平的中介作用

通过考察解释水平, 诠释时间间隔和未来事件效价的双向关系。结果发现：时间间隔会影响人们对未来事件效价的感知, 高解释水平事件在长时间间隔后发生的感知效价更好, 而低解释水平事件在短时间间隔后发生的感知效价更好(研究1); 同时, 未来事件效价也会反向影响人们对时间间隔的感知, 相对于未来发生的正效价事件, 负效价事件的感知时间间隔更短(研究2)。无论是时间间隔对未来事件感知效价的影响, 还是未来事件效价对感知时间间隔的影响, 解释水平均在其中起到中介作用。     

未来取向应对的双阶段序列模型及其时间透视机制

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。