Transfer of conditioned fear and avoidance: Concurrent measurement of arousal and operant responding

A reversal design was employed for the analysis of transfer of fear and avoidance through equivalence classes. Two 5-member equivalence classes (A1-B1-C1-D1-E1 and A2-B2-C2-D2-E2) were established. Then B1 and C1 were paired with shock (CS+) and served as S^Ds in avoidance training (B2 and C2 were trained as CS-/S^∆s for avoidance). Further avoidance training followed with D1 and E1 (as S^Ds) and D2 and E2 (as S^∆s), with the first presentation of each of these stimuli serving as the first transfer test. Afterwards, aversive conditioning contingencies were reversed: B2 and D2 were paired with shock and trained as S^Ds for avoidance, B1 and D1 were presented without shock (CS-/S^∆s). Transfer was tested again with C1, E1, C2 and E2. This reversal was implemented to allow for the within-subject replication of transfer effects upon changes in the function of only a subset of each class's elements. Avoidance (key presses) and conditioned fear (skin conductance and heart rate) were simultaneously measured. Results show a clear transfer effect for avoidance, with between- and within-subject replications. For physiological measures, transfer effects in the first test could only be imputed on the basis of group-based inferential statistical analysis. Evidence for between-subject replication was weaker, with only a limited proportion of participants meeting the individual criterion for transfer.     

从《战国策》看战国时期社会风气与思想倾向

《战国策》中的思想极其复杂，被称作“畔经离道之书”。《战国策》暴露出人类最原始、最本能的一面——追求物质利益的最大化。仁义廉耻等儒家通常所谓的美德，跟很多战国策士的价值观格格不入。但是，也正是在这样宽松自由的时代背景下，人们的思想与意识由百家争鸣渐渐向儒家的标准合拢，价值观由多元化向一元化靠拢。儒家的价值观正在悄然地受到尊重。汉代“罢黜百家，独尊儒术”有着一定的社会背景和思想意识基础。     

内插材料加工范式下语义加工水平(量)对内隐记忆影响的实验研究

基于内插材料加工对内隐记忆的干扰的研究范式(Martens＆Wohers．2002)所带来的启示，满足启动材料与目标词在语义线索上的匹配要求，根据启动材料的数量来控制语义加工水平(量)的大小，探索意识条件下和无意识条件下(阈限下)语义加工水平(量)对内隐记忆的影响。结果表明，无论是意识条件下．还是无意识条件下，内隐记忆成绩随语义加工水平的提高而提高。内插材料加工范式无疑是一种从更微观的角度探讨加工水平对内隐记忆的影响的较好的途径。     

Does upper-body elevation affect sleepiness and memories of hypnagogic images after short daytime naps?

The present study aimed to examine the effects of a somatosensory stimulus on sleepiness and memories of hypnagogic imagery during short daytime naps. Participants experienced two daytime nap conditions: (1) a somatosensory stimulus was created by raising the upper part of the bed 20 min after turning off the light and (2) a somatosensory stimulus was not created; the angle of the upper part of the bed remained flat. Approximately 20 min and 30 s after turning off the light, participants were awakened and questioned regarding their subjective sleepiness and the presence or absence of hypnagogic imagery. Results showed that subjective sleepiness following the nap was reduced only in the raised condition, and hypnagogic imagery in the raised condition was lower than that in the flat condition. These findings may provide insight on developing new techniques for improving subjective conditions after awakening.     

Faking resistance of a quasi-ipsative RIASEC occupational interest measure

Quasi-ipsative (QI) forced-choice response formats are often recommended over single-stimulus (SS) as a method to reduce applicant faking. Across three studies we developed and tested a QI version of the RIASEC occupational interests scale. The first study established acceptable reliability and validity of the QI version. The second and third studies tested the efficacy of the QI version for faking prevention in simulated job applicant scenarios. The results revealed that although the QI and SS formats were similarly fakable for the primary targeted interest, faking was limited for the secondary target on the QI version. Future research should identify the specific contexts in which QI prevents faking on various individual differences measures to allow for accurate recommendations in applied settings.     

Comparing stimulus preference and response force in a conjugate preparation

Researchers used a conjugate preparation to evaluate how response force changed based on participants' preferences for visual stimuli. First, researchers used a verbal preference assessment to evaluate each participant's preference for viewing for five object categories of visual stimuli; this process identified high preference (HP) stimuli and low preference stimuli for most participants. Thereafter, researchers exposed each participant to the five stimulus categories in a randomized order while using a force dynamometer to measure their response force to increase visual clarity of each stimulus. Results indicate the majority of participants' HP stimuli corresponded to the stimulus category for which they exerted the highest mean force. These preliminary findings suggest conjugate preparations involving response force may provide another option for measuring the relative value of some stimulus events.     

When All Is Revealed: A Dissociation between Evaluative Learning and Contingency Awareness

Three experiments are reported that address the issue of awareness in evaluative learning in two different sensory modalities: visual and haptic. Attempts were made to manipulate the degree of awareness through a reduction technique (by use of a distractor task in Experiments 1 and 2 and by subliminally presenting affective stimuli in Experiment 3) and an induction technique (by unveiling the evaluative learning effect and requiring participants to try to discount the influence of the affective stimuli). The results indicate overall that evaluative learning was successful in the awareness-reduction groups but not in the awareness-induction groups. Moreover, an effect in the opposite direction to that normally observed in evaluative learning emerged in participants aware of the stimulus contingencies. In addition, individual differences in psychological reactance were found to be implicated in the strength and direction of the effect. It is argued that these results pose serious problems for the contention that awareness is necessary for evaluative learning.