图形用户界面环境中的鼠标操作活动分析

本研究探讨GUI环境中目标的方向、大小和距离对鼠标指点定位和拖动操作的影响。实验结果表明 ,鼠标指点定位和拖动操作的MT随着目标距离的增加而增加 ,随着目标的增大而减小 ,但下降率呈递减趋势。对于指点定位任务 ,目标方向对鼠标操作的MT有影响 ,而对于拖动操作任务 ,这一影响不明显。总体上 ,以上 3个因素交互地影响鼠标操作的MT。根据本实验数据 ,我们为上述两种常规鼠标操作任务建立了 8个方向的费茨模型。这些结果有助于GUI的工效学设计。     

追踪作业中几种心理负荷评估指标敏感性的研究

本研究在模拟追踪作业情境下 ,对主任务绩效测定、主观评定和若干生理测量在心理负荷评估中的敏感性进行了实验。实验采用重复测量的被试者内设计 ,2 0名被试 (男女各半 )在六档负荷下分别从事五分钟追踪作业。所选用的指标有追踪作业平均误差距离、追踪警告次数、主观负荷评定、心率、心率变异和血压。结果发现 :1主任务绩效在评估追踪作业心理负荷中具有最高的敏感性 ,主观评定次之 ,心率变化率和心率变异变化率也随负荷变化 ,血压指标随负荷变化的趋势不明显 ;2除血压指标外 ,其余各指标之间均存在明显的相关 ,这提示它们在评估追踪作业心理负荷中具有较大的可靠性。     

复合运动刺激视觉追踪的初步研究

本实验采用多目标追踪和复合刺激研究范式,将注意追踪和知觉的整体优先性两个研究领域中存在的知觉组织规律相结合,对单一和多个复合刺激进行注意追踪研究.结果表明:在单一或多个复合刺激追踪过程中,同样遵循静态知觉组织原则;不同知觉组织形式对知觉加工有不同的影响,突出的颜色变化可以促进知觉组织加工.     

人际关系和自我概念对生命意义的影响：一项追踪研究

对1087名大学生进行为期1年的追踪研究,考察人际关系和自我概念对生命意义的影响,以及自我概念在人际关系与生命意义间的中介效应。结果显示：(1)人际关系、自我概念和生命意义之间存在同时性和继时性正相关;(2)在时间点1和时间点2,人际关系、自我概念和生命意义均两两相互预测;(3)人际关系和自我影响均影响生命意义,以及在人际关系与生命意义的关系中,自我概念起部分中介作用。即人际关系通过自我概念进而影响生命意义体验。结果表明,可以通过改善人际关系和提高自我概念来提升个体的生命意义感。即带着一颗自我肯定之心,积极参与到社会互动中去。     

青少年网络利他行为的发展趋势及社会阶层的影响：一项追踪研究

采用追踪研究设计对832名12～20岁的青少年进行为期1年半共4次的追踪测查,考察青少年网络利他行为的发展趋势以及社会阶层与青少年网络利他行为发展趋势的关系。运用多层线性模型对数据进行分析,结果表明：(1)青少年网络利他行为呈逐渐上升趋势;(2)性别、每周上网时间和客观社会阶层对青少年网络利他行为发展趋势的影响不显著,而主观社会阶层对青少年网络利他行为发展趋势的影响显著,即青少年的主观社会阶层越高,其网络利他行为的上升趋势越强。     

高中到大学阶段学生的压力应对变化：一项追踪研究

本研究通过对178名高三学生为期一年的追踪访谈和调查,探讨了当前青少年从高中到大学生阶段所面临的压力源及应对方式的转变。结果显示：压力源存在五种类型,分别是学业压力、未来发展压力、家庭-经济压力、自我评价压力和人际关系压力。学业压力及未来发展压力不管是对高中生还是对大学生都是主要的压力来源。应对方式存在显著的性别差异。与高中阶段相比,大学阶段个体面临的人际关系压力、自我评价压力与家庭-经济压力更高,他们也更倾向于采取相对消极的应对方式。不同阶段压力与应对的关系存在差异。     

四种情境中幼儿情绪表达规则理解和运用的追踪研究CSSCI

采用纵向设计,研究幼儿从4岁到6岁在四种情境中的情绪表达规则理解和运用。发现:(1)厌恶情境中知识水平最高,社会定向目标发展先快后慢,多用掩饰策略;高兴情境中自我定向目标迅速发展,多用平静化和弱化策略;伤心情境中综合运用多种策略,生气情境中知识水平最低,为自我保护而少用弱化策略。(2)幼儿的知识和夸大策略迅速增长,两种目标发展因情境而异,弱化策略发展因性别而异。(3)可以很好地解释前人研究的一些争议。     

汉语儿童语素意识与词汇知识的双向关系:一项追踪研究

以399名小学一、三、五年级学生为被试,进行为期一年的追踪研究,通过分层回归,系统考察了汉语儿童同音、同形和复合三类语素意识与词汇知识的双向关系。结果发现:(1)儿童语素意识和词汇知识随时间均有显著增长;(2)控制词汇知识的自回归效应后,一年级儿童的同音和复合语素意识对其二年级的词汇知识、三年级儿童的复合语素意识对其四年级的词汇知识、五年级儿童的同形和复合语素意识对其六年级的词汇知识有显著的预测作用;(3)分别控制三类语素意识的自回归效应后,一年级和五年级儿童的词汇知识可以显著预测其二年级和六年级的三类语素意识,三年级儿童的词汇知识对其四年级的同形和复合语素意识有显著预测作用。结果表明汉语儿童语素意识与词汇知识存在双向关系,且不同类型的语素意识与词汇知识的关系随年级的升高呈现规律性的变化。     

童年中晚期抑郁的发展及其与问题行为的并发:一项两年追踪研究

采用儿童抑郁量表和问题行为量表对771名小学3、4年级儿童进行了2年追踪调查,考察了童年中晚期抑郁的发展轨迹及其性别差异,并探讨了童年期中晚期抑郁与问题行为的并发。结果表明:(1)童年中晚期抑郁的发展轨迹为非线性曲线,其随着时间的推移而逐步下降,但在童年晚期阶段,呈现出逐步上升趋势;(2)童年中晚期抑郁的发展轨迹,在初始水平和发展速度上均不存在显著的性别差异;(3)童年中晚期抑郁的发展,常伴随着问题行为的并发。     

亲子分离与青少年同伴侵害和抑郁的关系:一项追踪研究

采用追踪研究设计,对贵州省1094名青少年进行了间隔半年的两次测查,考察早期亲子分离对青少年后期同伴侵害经历及抑郁水平的影响及性别差异。结果表明：（1）早期亲子分离能显著增加T1同伴侵害和抑郁,并通过T1的同伴侵害和抑郁间接影响T2的同伴侵害和抑郁;（2）亲子分离、同伴侵害和抑郁的关系存在显著性别差异：在女生组中,早期亲子分离不仅能够显著增加T1抑郁水平,还通过影响T1抑郁间接影响T2的同伴侵害状况,且早期亲子分离也可以边缘显著预测T1的同伴侵害状况;在男生组中,亲子分离仅能显著预测T1的同伴侵害经历,对于T1抑郁及T2时间点的各变量则无显著影响;（3）无论是否受到亲子分离的影响,同伴侵害与青少年抑郁之间均存在相互作用关系。研究结果提示早期亲子分离会导致青少年后期同伴侵害经历及抑郁水平上升,且主要体现在女生群体中,这为经历亲子分离后青少年心理健康干预方案的制定提供了科学依据。     

Extending Fitts' law to a three-dimensional pointing task

An attempt was made to extend Fitts' law to a three-dimensional movement (pointing) task to enhance its predictive performance in this domain. An experiment was conducted in which 10 subjects performed three-dimensional pointing movements under the manipulation of target size, distance to target and direction to target. As expected, the duration of these three-dimensional movements was rather variable and affected markedly by direction to target. As a result, the variance in the movement times produced was not satisfactorily explained by the conventional Fitts' model. The conventional model was extended by incorporating a directional parameter into the model. The extended model was shown to better fit the data than the conventional Fitts' model, both in terms of r(2) and the standard error of the residual between the measured movement time and the value predicted by model fit.     

Effects of Target Presentation Time,Recall Delay,and Aging on the Accuracy of Manual Pointing to Remembered Targets

The issues addressed in 2 experiments in which 10 younger and 10 older adults participated were (a) whether the retention of a target location in memory for motor control purposes would be facilitated by an increase in target presentation time; (b) whether increasing the recall delay since the last exposure to the target would have deleterious effects on aiming accuracy or variability, or both; and (c) whether those effects would be mediated by aging. The results revealed that there is a short-lived (< 1 s) visual representation of target location. In addition, the results suggested that the nature of that representation dictates a movement strategy favoring higher peak movement velocity. None of the effects reported in the present study was affected by age, suggesting that the coding and retrieving processes of target location in memory for motor control purposes are not affected by age.     

阅读中关于眼动控制的研究进展

简要介绍阅读中眼动控制的研究进展,具体探讨了阅读过程中关于注视点停留位置、跳读、回视和注视时间等方面的研究,并对Morrison的眼动理论模型、O'Regan的战略战术模型和Reichle最新提出的E—Z读者模型进行了评述。最后,提出在吸收国外的这些研究成果的同时,要注意考虑中文与西文阅读的差异性。     

Motor Programming as a Function of Constraints on Movement Initiation

Three experiments are reported that test the hypothesis that under certain conditions programming time is a function of the directional accuracy demand of a response, directional accuracy being quantified by the minimal angle subtended at the point of movement initiation by the circular targets within the response. Subjects in three simple reaction time experiments were required to tap a single target or a series of circular targets as rapidly as possible with a hand-held stylus. Experiments 1 and 3 showed that the subtended angle (SA) of a response can have a more powerful effect on programming time, as indexed by reaction time and premotor time, than the number of movement parts in the response. The results of Experiment 2 revealed that the locus of the directional accuracy effect was SA and not target size or movement distance. In all three experiments, response SA was a better predictor of programming time than was number of movement parts, target size, movement distance, movement time, and average movement velocity. The findings support the notion that constraints placed upon movement initiation by the directional accuracy demand of the task can play an important role in determining the length of the programming process.     

Influence of Strategy on Muscle Activity During Impact Movements

Participants (N = 10) made flexions or extensions about the elbow. Movements either were pointing (i.e., self-terminated) or terminated by impact on a barrier. The author examined how the trajectory and the electromyographic (EMG) patterns varied according to the distance moved, the instruction provided concerning speed, or the type of termination. Variations in kinematics induced by changes in the target distance or the instruction regarding speed were the same for impact and pointing movements. In comparison with a pointing movement of similar distance and speed instruction, an impact movement (a) accelerated longer and reached a higher velocity, (b) had a longer agonist EMG burst, and (c) had a low level of contraction that started slightly after the agonist burst and continued throughout the movement but had little or no antagonist burst. Because the different types of movements required different forces from the muscles, there were systematic, task-specific differences in EMG patterns that reflected task-specific differences in central control. The results of this experiment demonstrate that impact movements share some of the rules used in the control of other tasks, such as pointing and reversing movements. The sharing is not imposed by mechanical or physiological constraints but, rather, represents the imposition of internal constraints.     

听觉经验缺失对时距估计影响的实验研究

采用复制法,通过聋人与听力正常人时距估计的对比实验研究,结果发现听觉经验缺失对时距估计有一定的影响：（1）两类被试在2000ms和10000ms的时距估计中,再现时距的平均数表现出了显著性差异。听力正常被试倾向于低估时距,聋人被试倾向于高估时距。（2）聋人被试不同时距再现相对误差率之间不存在显著性差异;听力正常被试时距再现相对错误率在2000ms与10000ms、30000ms存在显著差异,10000ms和30000ms之间差异不显著。     

Sensation of effort and duration of mentally executed actions

The aim of this study was to examine whether a sensation of effort would arise in subjects requested, by verbal instructions, to mentally perform motor tasks with an internal imagery strategy. Sixteen subjects had to imagine themselves, from a first person perspective, writing a sentence and drawing a Necker's cube either with their right dominant hand or with their left hand, as well as hopping around a square either on their right or left foot. The time needed to mentally execute these actions was measured. The sensation of effort following the mental performance and the difficulty of imaging the tasks were assessed by means of two analog rating scales. The results indicate that the sensation of effort increased across the trials. Furthermore, a negative correlation coefficient (mean r = -0.99) was found between the difficulty to imagining a given motor task and the subjective sensation of effort across the trials. Moreover, the sensation of effort was more pronounced when the tasks involved the non-dominant limb.     

句子阅读的内隐自尊研究

本研究尝试通过22名被试在阅读自我成败句子及他／她成败句子时的眼动数据来探讨内隐自尊,结果发现阅读主语人称为“我”的句子时．自我成功句子与自我失败句子的第二次注视时间及瞳孔大小存在差异,这提示内隐自尊存在,个体会无意识地对自我积极信息进行深度加工。     

意象活动与自尊水平关系的研究

在当今的许多团体心理辅导和训练中,关于苹果意象的活动常常被用于测量团训参与者的自尊水平。但其科学性一直没有得到实证研究验证。该研究采用了这种意象想象技术,同时用SES量表测量其自尊程度。并通过对测量结果的统计分析,揭示了苹果意象大小与自尊水平之间的关系。