Recognition memory strength is predicted by pupillary responses at encoding while fixation patterns distinguish recollection from familiarity

Thirty-five healthy participants incidentally encoded a set of man-made and natural object pictures, while their pupil response and eye movements were recorded. At retrieval, studied and new stimuli were rated as novel, familiar (strong, moderate, or weak), or recollected. We found that both pupil response and fixation patterns at encoding predict later recognition memory strength. The extent of pupillary response accompanying incidental encoding was found to be predictive of subsequent memory. In addition, the number of fixations was also predictive of later recognition memory strength, suggesting that the accumulation of greater visual detail, even for single objects, is critical for the creation of a strong memory. Moreover, fixation patterns at encoding distinguished between recollection and familiarity at retrieval, with more dispersed fixations predicting familiarity and more clustered fixations predicting recollection. These data reveal close links between the autonomic control of pupil responses and eye movement patterns on the one hand and memory encoding on the other. Moreover, the data illustrate quantitative as well as qualitative differences in the incidental visual processing of stimuli, which are differentially predictive of the strength and the kind of memory experienced at recognition.     

ICU成人患者镇痛药物的使用：阿片类及其他

ICU患者经历着各种各样的疼痛,镇痛治疗对于ICU患者至关重要.目前可用于ICU成年患者的镇痛药物很多,主要有阿片类镇痛药、解热镇痛抗炎药和对某些特殊疼痛状态有效的药物.阿片类药物仍是非神经性疼痛的一线用药,使用最多的是阿片受体激动药,包括吗啡、芬太尼、舒芬太尼、瑞芬太尼等,其中舒芬太尼、瑞芬太尼在国内ICU中使用经验不多;阿片受体部分激动药在国内ICU使用很少,包括喷他佐辛、地佐辛等;非甾体类镇痛药在国内ICU使用也很少,包括氟比洛芬酯、帕瑞昔布等.本文旨在简单介绍舒芬太尼、瑞芬太尼、部分阿片受体激动剂及非甾体类镇痛药在ICU的应用.     

Concept Shift and the Development of the Concept of Class in Children

The authors compared parent-related perceptions by hospitalized adolescents (i.e., who were admitted to a specialized psychiatric unit; n = 50) and delinquent adolescents (i.e., who were placed at a juvenile treatment institution; n = 51) with adolescents from the general population (n = 51). All adolescents completed a broad set of measures of attachment, perceived parenting, and separation–individuation. Contrary to initial expectations, hospitalized adolescents scored higher than controls on indices of excessive autonomy. Ambivalence regarding issues of interpersonal closeness and distance was found among delinquent adolescents. In addition, hospitalized and delinquent adolescents were found to be struggling, each in their specific way, with attachment-related experiences of trauma. Finally, delinquent adolescents also showed a stage-appropriate form of potentially adaptive narcissism. These findings add to the growing consensus in the literature that associations between adolescent psychopathology and parent-related perceptions are typically complex and somewhat counterintuitive.     

The unit size effect of indulgent food: How eating smaller sized items signals impulsivity and makes consumers eat less

In deciding how much to eat, people are influenced by environmental cues. The unit size of food (i.e. the number of units in which a given amount of food is divided) provides such a cue. Previous research showed that given equal caloric and volumetric content, smaller units of food tend to reduce food consumption. We propose that the unit size of food impacts intake as it influences perceptions of impulsiveness and appropriateness. Our analysis is based on three experimental studies, all employing between subject designs. When consuming similar amounts of chocolates in studies 1 (n?=?118) and 2 (n?=?124), both studies show that consumption of five small units of chocolates is considered to be more impulsive, excessive and less appropriate than consuming one large unit of chocolate. Results of a third study (n?=?165) indicate that about 23% less chocolate is eaten when it is presented in small unit size vs. a large unit size and this effect is mediated by perceptions of impulsivity. All three studies suggest that perceptions of impulsivity and excess eating while eating several smaller units of food compared to one large unit might be a key factor explaining consumption effects in earlier studies on this bias.     

Sleep Leadership in High-Risk Occupations: An Investigation of Soldiers on Peacekeeping and Combat Missions

Individuals in high-risk occupations (e.g., military service) often report physical, psychological, and organizational problems. Although leaders can partially buffer their subordinates against these problems, the impact of established leadership skills appears limited, especially in high-risk occupations. Thus, building on recent theories of domain-specific leadership, we examined whether leadership focused on the specific domain of sleep might be negatively associated with some specific problems facing individuals in high-risk occupations, beyond their relationship with general leadership. Studying military personnel on peacekeeping and combat deployments, we predicted that “sleep leadership” would be negatively associated with sleep problems (physical), depressive symptoms (psychological), and negative climate (organizational), and that sleep would mediate the relationship between sleep leadership and the psychological and organizational problems. Results were generally supportive, contributing to theories of domain-specific leadership by showing that sleep-focused leader behaviors may go beyond general leadership behaviors, relating directly to the problems facing individuals in high-risk occupations.     

REINFORCER ACCUMULATION IN A TOKEN-REINFORCEMENT CONTEXT WITH PIGEONS

Four pigeons were exposed to a token-reinforcement procedure with stimulus lights serving as tokens. Responses on one key (the token-production key) produced tokens that could be exchanged for food during an exchange period. Exchange periods could be produced by satisfying a ratio requirement on a second key (the exchange-production key). The exchange-production key was available any time after one token had been produced, permitting up to 12 tokens to accumulate prior to exchange. Token accumulation, measured in terms of both frequency (percent cycles with accumulation) and magnitude (mean number of tokens accumulated), decreased as the token-production ratio increased from 1 to 10 across conditions (with exchange-production ratio held constant), and increased as the exchange-production ratio increased from 1 to 250 across conditions (with token-production ratio held constant). When tokens were removed, accumulation decreased markedly compared to conditions with tokens and the same schedules. These data show that token accumulation is an orderly function of token-production and exchange-production schedules, and they are broadly consistent with a unit-price model based on local and global responses per reinforcer.     

书写产生过程的认知机制

van Galen (1991)的书写产生模型指出书写过程是由层级结构组织起来的多个认知模块平行加工的结果。以此模型为出发点, 介绍了书写产生研究中主要关注的三个问题：书写过程中是否存在语音中介？书写时拼写编码的加工单元是什么？以及书写过程中认知编码阶段和运动执行阶段之间的关系？此外, 我们总结了书写产生与口语产生和阅读之间的联系, 介绍了书写产生过程的认知神经机制。最后, 我们分析了汉语的独特特点, 并指出这些特点对于书写产生研究的重要意义, 期待更多的心理语言学研究关注书写产生这一研究领域。     

CDF‐quantile distributions for modelling random variables on the unit interval

This paper introduces a two‐parameter family of distributions for modelling random variables on the (0,1) interval by applying the cumulative distribution function of one ‘parent’ distribution to the quantile function of another. Family members have explicit probability density functions, cumulative distribution functions and quantiles in a location parameter and a dispersion parameter. They capture a wide variety of shapes that the beta and Kumaraswamy distributions cannot. They are amenable to likelihood inference, and enable a wide variety of quantile regression models, with predictors for both the location and dispersion parameters. We demonstrate their applicability to psychological research problems and their utility in modelling real data.     

市场规范与社会规范冲突视角下的奖励推荐计划作用机制

奖励推荐计划(referral reward program, RRP)越来越成为企业获取新顾客和保留老顾客的有力武器, 然而有关RRP对消费者推荐行为影响的研究却较为匮乏。从RRP引发社会规范与市场规范冲突的视角出发, 以营销学、动机心理学、情绪心理学及行为经济学为基础, 系统研究RRP对推荐行为的影响。具体内容包括：研究奖励框架与社会规范对消费者推荐动机的作用; 探究情绪在动机一致性与推荐行为之间的中介作用; 关注因果定向、自我意识及文化价值观等自我层面因素对以上过程的调节作用。将主要采用系列实验并结合神经营销学方法, 力图彻底搞清现有研究中的争论话题和填补研究空白, 这对从社会规范与市场规范相冲突的视角探讨以动机为主题的RRP研究具有重要的理论意义, 同时对中外企业了解奖励对消费者推荐行为的影响机制以及设计合理有效的RRP具有显著的指导意义。     

Interview

Much of the opposition to faith sector education revolves around a number of accusations (as set out in Roger Marples' article in Part A). To confront these accusations openly, this interview is presented as an unmediated voice of a young person who is a former pupil of a faith school. He discusses selection, his reasons for going to a faith school and the religious exposure that he experienced there. He goes to talk about his unhampered role as a devil's advocate in a faith school, whether or not he felt he was being indoctrinated, the issue of fundamentalism and his own questioning stance.