不同视觉区域OUP效应的眼动研究

摘 要 采用眼动方法,通过两个实验考察了不同视觉区域的OUP效应。结果显示：（1）当刺激材料分别平行呈现于左侧视觉区域和右侧视觉区域时,在右侧视觉区域产生了OUP效应,而在左侧视觉区域没有OUP效应,我们假设是由于左侧视觉区域首字母距离中央凹的不利位置影响了OUP效应的产生。（2）当垂直方向呈现刺激时,在两侧视觉区域均产生了明显的OUP效应,表明首字母距离中央凹处于有利位置时不会影响OUP效应的产生。实验结果支持了大脑左半球和右半球在词汇识别时的策略为系列加工,对左半球平行加工右半球系列加工的结论提出了质疑。     

Residential Mobility and Prosocial Development Within a Single City

Neighborhood social dynamics have been shown to impact behavioral development in residents, including levels of prosociality (i.e. positive social behavior). This study explores whether residential moves to neighborhoods with different social dynamics can influence further prosocial development. Prosociality, five domains of social support, and residential location were tracked between 2006 and 2009 in 397 adolescents across a small city in upstate New York. Analysis compared the role of the different forms of social support in prosocial development for movers versus non-movers. The effects of one's neighborhood of residence at Time 2 were also compared between movers and non-movers. Prosocial development in these two groups responded similarly to all forms of social support, including from neighbors. Movers experienced a greater increase in prosociality the more residentially stable the adolescent population of their new neighborhood of residence. Such neighborhood characteristics were not influential in the prosocial development of non-movers.     

Stimulus expectancy modulates inferior frontal gyrus and premotor cortex activity in auditory perception

In studies on auditory speech perception, participants are often asked to perform active tasks, e.g. decide whether the perceived sound is a speech sound or not. However, information about the stimulus, inherent in such tasks, may induce expectations that cause altered activations not only in the auditory cortex, but also in frontal areas such as inferior frontal gyrus (IFG) and motor cortices, even in the absence of an explicit task. To investigate this, we applied spectral mixes of a flute sound and either vowels or specific music instrument sounds (e.g. trumpet) in an fMRI study, in combination with three different instructions. The instructions either revealed no information about stimulus features, or explicit information about either the music instrument or the vowel features. The results demonstrated that, besides an involvement of posterior temporal areas, stimulus expectancy modulated in particular a network comprising IFG and premotor cortices during this passive listening task.     

Sequential dependencies in driving

The effect of recent experience on current behavior has been studied extensively in simple laboratory tasks. We explore the nature of sequential effects in the more naturalistic setting of automobile driving. Driving is a safety-critical task in which delayed response times may have severe consequences. Using a realistic driving simulator, we find significant sequential effects in pedal-press response times that depend on the history of recent stimuli and responses. Response times are slowed up to 100 ms in particular cases, a delay that has dangerous practical consequences. Further, we observe a significant number of history-related pedal misapplications, which have recently been noted as a cause for concern in the automotive safety community. By anticipating these consequences of sequential context, driver assistance systems could mitigate the effects of performance degradations and thus critically improve driver safety.     

青少年网络游戏与心理健康:动机的调节与中介

先前研究对游戏动机在网游与心理健康关系中的作用缺乏明确的认识,相关领域的研究也存在争议。通过实证研究发现:(1)成就和归属动机对网游-健康关系均具有显著的调节作用,但方向相反;成就动机具有类似防御的积极作用,归属动机的调节作用显示了以网游满足归属需要带来的消极后果;(2)享乐动机不完全中介了网游-健康关系(系数为负),以享乐动机的满足作为网游目的的人,较少沉迷于网络游戏,心理健康问题也较少。     

关联效应中对情绪诱词的错误再认的实验研究

采用DRM范式,考察了在汉字单字词语音关联和形声关联条件下对具有情绪色彩的关键诱词的错误再认情况,结果表明:(1)汉字中存在着语音和字形关联,但是语音关联下的对诱词的错误再认率很低。(2)语音关联、形声关联条件下,尽管学习阶段没有出现带有情绪色彩的词,被试仍然对情绪诱词都产生了显著的错误再认。(3)形声关联下对关键诱词的错误再认近于语音关联的两倍,可见概括性的强度影响错误记忆的大小。     

高低阅读技能聋生词汇加工的语境预测性效应特点:眼动证据

本研究考察中文聋生读者利用语境预测性信息促进词汇加工的过程特点。实验采用3（组别：高阅读技能聋生组vs.高阅读技能聋生的能力匹配健听组vs.低阅读技能聋生组）×2（句子背景对目标词的预测程度：高预测vs.低预测）混合设计。结果发现：（1）目标词的左侧词汇上,能力匹配健听组在凝视时间和总注视时间两个指标上可见语境预测性效应,两个聋生组在任何指标上均没有语境预测性效应;（2）目标词上,能力匹配健听组在首次注视时间、凝视时间和总注视时间三项指标上均可见显著的语境预测性效应,高阅读技能聋生组仅在总注视上可见语境预测性效应,低阅读技能聋生的任何眼动指标均没有语境预测性效应。由此可见,聋生在利用语境预测性促进词汇加工方面与健听读者有所差异;相对于低阅读技能聋生,高阅读技能聋生读者识别词汇时能更多地利用语境预测性信息。     

汉词和图画再认的ERP效应及脑机制

目的：比较汉词与图画材料再认过程中的事件相关电位（ERP）表现并探讨其脑机制。方法：使用经典“学习一再认”实验模式对21名大学生进行测验,同时记录EEG,离线处理后对汉词及图画再认诱发的ERP波形主要成分及新旧效应进行比较。结果：两种材料的再认均诱发出了明显的新旧效应。顶区新旧效应头皮分布基本一致,但图画再认该效应波幅大于汉词再认;两种材料诱发的额区新旧效应有所不同,图画再认该效应为正走向,而汉词再认此效应表现为负走向趋势。结论：汉词与图画再认既存在某种共同的神经加工机制,叉分别涉及一些特异性的神经活动模式。     

位置和内容对网页广告效果影响的眼动评估

使用TobiiT120型眼动仪,以16名大学生为被试,记录他们阅读嵌有网页广告新闻网页时的眼动注视过程,以探讨广告呈现位置、新闻内容与网页广告的相关性是否影响人们对网页广告的注视。实验采用3（广告位置：上方、中间、下方）×2（相关性：相关、不相关）两因素被试内设计。结果发现：（1）新闻内容和网页广告的相关性不影响人们对网页广告的加工;（2）对位于新闻上方和新闻中间的网页广告,被试的注视次数较多,且注视时间较长;（3）对位于新闻中间的网页广告,其再认效果优于位于新闻上方和新闻下方的广告。表明只有网页广告呈现位置这一因素影响被试对网页广告的注视。     

The Interaction of Job Satisfaction, Job Search, and Job Changes. An Empirical Investigation with German Panel Data

Using the rich data set of the German Socio-Economic Panel (GSOEP) this article analyzes the effects of job characteristics on job satisfaction as well as the conditions under which low job satisfaction leads to job search, and under which job search leads to job changes. Individual fixed effects are included into the analysis in order to hold unobserved heterogeneity constant. According to the empirical results, the strongest determinants of job satisfaction are relations with colleagues and supervisors, task diversity and job security. Furthermore, job satisfaction is an important determinant of the self-reported probability of job search, which in turn effectively predicts actual job changes. The effect of job search on the probability of changing jobs varies with job satisfaction and is strongest at low levels of job satisfaction. The effects of job dissatisfaction on job search and of job search on quits are stronger for workers with lower tenure, better educated workers, workers in the private sector and when the economy and labor market are in a good condition.