心理学文化转向中的方法论难题及整合策略

近20多年来心理学的文化转向研究基本上扫清了许多外围障碍,但也暴露出了一些深层次的发展难题,如心理学的文化研究在实现科学观的转变过程中如何避免限制与泛化之问的矛盾：人类文化心理的普适性与差异性关系难以在实践操作层面上得到有效实现;后现代及全球化文化背景下加剧了心理学的对立与分歧。求得这一难题有效解决之关键在于改变滞后的科学观．深化阐述性与规范性心理文化层面研究的理论力度。     

Brain mechanisms associated with background monitoring of the environment for potentially significant sensory events

Background monitoring is a necessary prerequisite to detect unexpected changes in the environment, while being involved in a primary task. Here, we used fMRI to investigate the neural mechanisms that underlie adaptive goal-directed behavior in a cued task switching paradigm during real response conflict or, more generally, when expectations on the repetitive features of the environment were violated. Unexpected changes in sensory stimulus attributes in the currently unattended stimulus dimension thereby led to activations in a bilateral network comprising inferior lateral frontal, intraparietal, and posterior medial frontal brain regions, independent of whether these attributes elicited a factual response conflict or not. This fronto-parietal network may thus play an important role in adaptive responding to potentially significant events outside the current focus of attention.     

发展性阅读障碍的ERP研究

发展性阅读障碍,ERP,语音缺陷假说,Oddball范式。行为实验已经发现,语音能力的缺损是拼音文字发展性阅读障碍的核心。然而近年来行为研究和神经生理学的研究也发现,发展性阅读障碍与基本知觉障碍有关。事件相关电位（event-related potentials ,简称ERP）作为一种独特的电生理学研究手段,从一个更为直观的角度验证了行为实验的结果,推动了发展性阅读障碍的进展。语言认知水平ERP研究表明,发展性阅读障碍者在存在语音加工和信息整合的缺陷。感知觉加工层次的ERP研究结果则不尽一致,有的研究发现,阅读障碍存在着基本的听觉加工缺陷;有的研究则发现发展性阅读障碍存在言语声音加工的缺陷,而对非言语声音的加工与正常读者没有显著差别;有的研究支持大细胞通路受损假说,发现阅读障碍在低对比度和低空间频率上存在视觉加工的缺陷,有的研究结果则没有发现发展性阅读障碍者与正常读者在不同对比度和空间频率上的差异。     

依恋类型对主动遗忘的影响

成人依恋可以在依恋回避和依恋焦虑两个维度进行分析。不安全依恋的个体在依恋关系中持续感受到一种不安全感,因此个体往往采用心理防御策略来摆脱这种不安全感。对于许多不愉快的事件,个体常常也会采用类似的防御策略进行抑制,以减少自身的消极体验。主动遗忘是指个体有意识地避免回想某一目标对象而导致的遗忘现象,其可能与高回避个体的停用策略十分相似。为探讨对于依恋相关的记忆内容,高回避个体是否能够成功进行主动遗忘以规避负面情绪,或是防御失败引起依恋系统激活,反而更多回忆起相关记忆内容,本实验采用Think/No-Think(TNT)范式进行研究,以依恋相关故事作为对被试的依恋启动操作,设计了2(启动:依恋启动vs.依恋未启动)×3(主动遗忘:Think vs.No-Think vs.Baseline)×2(依恋维度得分:高vs低)混合设计研究不同依恋类型主动遗忘能力的影响。实验结果显示,TNT操作与回避类型与启动操作的交互作用显著,高依恋回避个体在受到依恋相关启动时表现出优秀的主动遗忘能力,而在未受到启动时则不能有效地遗忘依恋相关负性词对; 而低依恋回避个体则表现相反,在受到启动材料威胁时无法成功主动遗忘,而在未受启动条件下可以成功遗忘要求内容。对于不同焦虑类型的被试来说,其主动遗忘能力与启动操作无关,高焦虑类型被试表现出更强的主动遗忘能力,并从依恋内部工作模型角度进行了分析。     

Low temporal precision for high impulsive individuals

Previous studies have shown that impulsive people perceive time differently from non-impulsive people. However, these studies either recruited participants from the clinical population or used impulsive behavior (rather than impulsivity trait itself) as the index of impulsivity. We investigated the relationship between time perception and self-report impulsivity trait (measured by the Barratt Impulsiveness Scale; BIS-11) in non-patient participants. We used the oddball paradigm to measure subjective duration and discrimination precision in high- and low-impulsive groups. Results show that high impulsive participants’ discrimination precision was lower than low impulsive participants (Experiment 1). The possibility that this is due to high impulsive participants having weaker attentional maintenance of the task was excluded (Experiment 2). By removing potentially confounding factors that existed in previous studies, our results demonstrate a more convincing relationship between temporal precision and the impulsivity trait in healthy participants.     

Dual coding versus relational processing in memory for concrete and abstract words

In two experiments, participants judged whether nouns fitted particular sentence frames and then received an unanticipated recall test with the sentence frames as cues. Concrete nouns were better recalled than abstract nouns, and nouns presented in meaningful sentence frames were better recalled than nouns presented in anomalous sentence frames. In Experiment 2, performance in a test of free recall was positively related to the concreteness of the nouns but unrelated to the meaningfulness of the sentence frames. The increase in performance from free recall to cued recall was positively related to the meaningfulness of the sentence frames but not significantly related to the concreteness of the nouns. The effects of concreteness and meaningfulness showed no sign of any interaction either in their effects on recall performance or in their effects on the advantage of cued recall over free recall. These results are consistent with the dual-coding theory of imagery and verbal processes but are not consistent with either of two different interpretations of the relational-distinctiveness processing theory.     

Searching for commonalities in human judgement: The parametric unimodel and its dual mode alternatives

The question of why even a minimal ingroup is typically evaluated more positively than the respective outgroup has stimulated extensive theoretical and empirical work in social psychology. Integrating findings from various domains of research, this chapter summarises a comprehensive research programme that focuses on cognitive rather than motivational factors that contribute to positive ingroup distinctiveness. More specifically, evidence is presented showing that (a) there is a positive ingroup default, such that novel ingroups are immediately associated with positive affect; (b) people make inferences from the self in order to define their novel groups; and (c) this process of using the self as a means of cognitive structuring is based on heuristic rather than systematic information processing. Implications for our understanding of the role of self in intergroup evaluations and of factors determining ingroup favouritism in both minimal and real groups are discussed.     

Further evidence for the validity of the Taylor Aggression Paradigm

The purpose of this study was to evaluate the validity of a modified version of the Taylor Aggression Paradigm (TAP) as a measure of direct physical aggression. Hypotheses were generated from recent theory pertinent to the categorization and measurement of aggressive behavior as well as widely supported effects of alcohol intoxication and gender on aggression. Participants were 328 (163 men and 165 women) healthy social drinkers between 21 and 35 years of age who completed self-report personality inventories designed to assess one's propensity toward direct physical aggression, verbal aggression, trait anger, and hostility. Following the consumption of either an alcohol or a placebo beverage, participants were tested on the TAP, in which mild electric shocks were received from, and administered to, a fictitious opponent during a competitive task. Direct physical aggression was operationalized as the shock intensities (i.e., first trial shock intensity, mean shock intensity, proportion of highest shock) administered to the fictitious opponent. Although all self-report measures were significantly associated with the three TAP indices, the associations involving physical aggression were strongest. In addition, self-report measures of physical aggression consistently predicted higher levels of aggression on the TAP indices in men, compared with women, and in intoxicated, relative to sober, participants. Taken as a whole, this pattern of findings provides further evidence for the validity of the TAP as a measure of direct physical aggression for men and women.