基于工作记忆内容的视觉注意

视觉系统是一个资源有限的信息加工系统, 在任何时刻视觉注意只能选择外界环境中的有限信息进行加工。工作记忆对于解决视觉场景中不同物体之间的注意竞争具有重要作用, 保持在工作记忆中的物体表征会以自上而下的方式引导注意优先选择视场中与之匹配的物体。本文系统回顾了有关工作记忆内容对视觉注意的引导作用的研究文献, 并探讨了基于工作记忆内容的视觉注意捕获的自动性, 指出基于工作记忆内容的视觉注意捕获是一个有条件的自动化过程。     

急性应激对工作记忆的影响受工作记忆负荷调节:来自电生理的证据

急性应激如何影响工作记忆还不清楚。采用电影片断诱发被试的急性应激或中性状态后,让其完成数字N-back任务并同时记录脑电。结果发现,低负荷工作记忆诱发的P3显著大于高负荷工作记忆;在0-back任务中,急性应激组诱发的P3显著大于控制组;而在2-back任务中,这种差异不显著。这些结果表明急性应激对工作记忆的影响受工作记忆负荷调节,支持了双竞争理论模型。     

Dominance structure in small groups of juvenile white-seabream (Diplodus sargus cadenati de la paz,Bauchot and Daget 1974)

Experiments were conducted to investigate the intraspecific aggressive interactions between juveniles of white-seabream (Diplodus sargus cadenati de la Paz, Bauchot and Daget 1974) in relation to dominance hierarchy in small groups. The agonistic interactions between juvenile white-seabream in small groups originated a peck-dominance hierarchy. The dominant (α-fish) generally interacted aggressively and most frequently with the subordinate that was next in line (β-fish) within the dominance hierarchy. This β-fish interacted aggressively more frequently with the γ-fish, and so on. Results demonstrated that fish do not attack subordinates at random. The level of subordination in small groups of juvenile white-seabream was related to body size. Generally, the more aggressive fish manifest a higher growth rate. Aggr. Behav. 24: 197–204, 1998. © 1998 Wiley-Liss, Inc.     

比较广告传播的作用机制及影响因素

比较广告是一种新异但颇具争议的广告形式。研究者们对比较广告的概念和传播效果已有较为统一的认识,新近研究的重点是比较广告传播的作用机制及影响其传播效果的因素。文章从比较广告的传播效果、传播机制和影响因素三方面进行了系统的考察,提出现有研究在机制探讨和影响因素控制上的一些不足,并展望了研究亚文化下比较广告的方向     

网络广告的心理传播效果及其理论探讨

网络广告现已得到众多商家的重视与青睐。研究发现, 网络广告的心理传播效果明显受到广告自身特点(如网络广告的形式、互动性、情感元素、产品类型)、受众状态(如受众的期待、卷入度、先前经验、性别)、以及网络环境等因素的影响。学者们利用修正的精细加工可能性模型、互动广告模型、网络广告心理效果模型等对该类广告效应进行理论解释。但现有研究也依然存在一些问题, 如影响因素有待拓展、研究方法有待创新、因变量指标有待规范、理论总结不力等。     

Acquisition and maintenance of trusting behavior

This study determined whether a two-person exchange situation contained natural contingencies for trusting behavior or whether external contingencies were necessary. Pairs of college students worked matching-to-sample problems for money. On each trial there was one problem and the subjects determined which of them would solve it. Trusting behavior was defined as an increase in the number of consecutive problems each subject allowed his partner to work during sessions that also ended with an equitable distribution. Simply, trust was a temporary deviation from equity. A subject could give the problem to the other person (cooperate), or not respond and let the other person take the problem (share). Other possibilities were for both subjects to try to take the problem (complete), or for neither subject to respond and thereby let the person who worked the last problem also work the next one (passive trust). When only four lever pulls were required to distribute a problem (no external contingencies to reach either equity or trust) subjects reached equity, but only minimal trust (strict alternation of single problems) developed in 18 sessions. When 30 or 60 lever pulls were required to distribute a problem (smaller response requirement for passive trust and therefore a contingency for trust), trusting behavior developed after a few sessions (fixed ratio 30) or after several trials of the first session (fixed ratio 60) and it ordinarily expanded gradually to 10 to 15 consecutive problems through passive trust. The aversiveness of the inequity involved in trusting appears to necessitate a contingency for acquisition. Once trust develops, however, this aversiveness is reduced as subjects learn the inequity is only temporary (e.g., once trust was acquired at fixed ratio 60 it was maintained at fixed ratio 4, which would not initially produce it), and the direction of the inequity appears to become of questionable importance (e.g., being behind was alternated over rather than within sessions and usually not in a systematic manner).     

Testosterone and attribution of successful competition

Mood, personal merit, and/or its perception have been suggested to be mediating factors in testosterone responses to competition. Previously we have found that personal contribution and attribution were related to testosterone levels after successful competition. To confirm such associations, two basketball teams (n = 17 players) that emerged as winners in two actual matches were studied. Salivary testosterone levels and mood were measured before and after the games. Individual contribution to the outcome was assessed, and personal satisfaction and causal attribution of outcome were reported by players. Testosterone concentrations increased to near significance in Team 1 but not in Team 2, who attributed their victory more to luck than did Team 1. This latter team showed notably decreased vigor, and both teams showed fatigue at the end of the match. Post‐match testosterone levels were only significantly, negatively related to external attribution. The results support the idea that causal attribution of the outcome is contributing to the variance of the testosterone responses to real confrontations where the outcome is highly dependent on personal merit. Aggr. Behav. 26:235–240, 2000. © 2000 Wiley‐Liss, Inc.     

Willingness to fake: Examining the impact of competitive climate and hiring situations

Applicants may be willing to fake in job interviews with the aim of creating a positive impression. In two vignette‐based experiments, we examined if a competitive—versus noncompetitive—climate (Study 1) and hiring situation (Study 2) increased participants' willingness to fake. We also examined if Honesty–Humility and Competitive Worldviews moderated the relation between willingness to fake and how competitive participants believed they must be in order to secure the job. Results demonstrated that a competitive climate and hiring situation increased willingness to fake. Honesty–Humility and Competitive Worldviews were related to willingness to fake, but these relations did not change substantially at different levels of perceived need for competitiveness. Overall, results lend some theoretical support to propositions about applicant faking.     

传统媒体上强势品牌广告竞争溢出效应的作用机制及分布规律

由于产品之间存在相互关联性, 一个企业的广告不仅会对本企业产品的市场需求产生促进作用, 而且对其它企业产品的市场需求也会产生一定影响, 这种影响被称为广告的溢出效应。以往研究发现, 强势品牌广告竞争对弱势品牌具有溢出效应, 但该研究仅验证了溢出效应存在, 并未对其作用机制进行深入挖掘。通过实验方法探讨强势品牌广告竞争对弱势品牌的溢出效应的作用机制及边界条件是当务之急, 实验一探讨强势品牌广告竞争对弱势品牌溢出效应的作用机制, 主要包括探讨中介变量和调节变量两个方面的问题。中介变量包括消费者对强势品牌的涉入度、感知产品质量、行业市场份额变化三个变量, 调节变量包括消费者广告态度、消费者任务导向、产品生命周期、产品同质性四个变量。实验二探讨强势品牌广告竞争对弱势品牌的溢出效应的整体分布规律, 包括产品成长期和成熟期两个时期的溢出效应分布规律。研究将揭示强势品牌广告竞争的作用机制和整体分布规律, 有利于丰富溢出效应理论和广告效果理论。     

The Challenge of Being a Challenger: Social Dominance Orientation Shapes the Impact of “Challenger vs. Leader” Comparisons

The current research investigates when and how comparative advertising effectiveness is shaped by social dominance orientation (SDO), that is, the degree to which one desires to maintain the status quo in social hierarchies. We examine these issues with regard to “challenger vs. leader” comparisons that seek to change the relative standing of competitors in a product category by documenting the superiority of challenger brands over market leaders. Findings demonstrate that the resistance to change characterizing high (vs. low) SDO individuals makes them respond (1) less favorably to “challenger vs. leader” comparisons that seek to alter the existing category hierarchy and (2) more favorably to “leader vs. challenger” comparisons that preserve this status quo in the category hierarchy. The theoretical implications of these findings are discussed, as are avenues for future research.