The treatment of youthful sexual offenders

Approximately 20% of all rapes and between 30% and 50% of child molestations are perpetrated by adolescent males. These statistics underscore the need for improved understanding of youthful sexual offending so that effective prevention measures may be utilized for those adolescents at risk of offending and effective treatments may be utilized with those adolescents who have already committed sexual offenses. In this article we review the current knowledge of the characteristics of youthful offenders, proposed etiologies of youthful offending, proposed typologies of, assessment protocols, and treatments for youthful offenders. Finally we discuss the need for further research in the area of youthful sex offending.     

A cautionary note on the use of probability values to evaluate interobserver agreement

Proposed methods of assessing the statistical significance of interobserver agreements provide erroneous probability values when conducted on serially correlated data. Investigators who wish to evaluate interobserver agreements by means of statistical significance can do so by limiting the analysis to every k(th) interval of data, or by using Markovian techniques which accommodate serial correlations.     

医患沟通对医生刻板印象表达的影响

从沟通频次与刻板印象传递性质的关系入手,以住院患者和尚未成为住院患者的大学生为被试,采用系列再生范式,利用10条4人再生链,探讨了医患沟通频次对医生刻板印象表达的影响。结果显示,与医生沟通频次高的住院患者在再生链的第2个位置传递医生的积极信息高于消极信息,但是经过4人的传递,住院患者对医生刻板印象信息的传递在积极信息与消极信息没有差异。而与医生沟通频次低的大学生在再生链的后期表现出传递医生消极信息的倾向。该结果表明：沟通频次能够调节有关医生的消极刻板印象的传递—与医生沟通频次高的群体在传递医生的刻板印象信息时,在传递的早期具有积极的倾向性;但经过多人传递之后,在效价方面已经没有倾向性;与医生沟通频次低的群体倾向于传递医生刻板印象的消极信息。     

频率差异假设和长时记忆的视优效应

本文包括长时记忆视优效应的三项实验。实验一使用汉语为学习材料,北京人与广东人为被试;实验二使用英语为学习材料、美国人与中国人为被试;实验三使用日语为学习材料、日本人为被试。三项实验都有视觉、听觉两种呈现方式。三项实验的结果都有利于证明频率差异假设,即如果在书面言语中经验某字词的频率高于在口语中经验该字词的频率,则该字词的视觉呈现优于听觉呈现。     

序列位置内隐学习产生机制的实验研究

内隐学习是当今认知和学习领域继内隐记忆之后又一重要的研究课题。该研究利用序列反应时研究程式,通过两个实验,对序列位置内隐学习产生的机制进行了探讨。结果表明：（１）在序列反应时任务程式中,随着反应一刺激间隔的延长,序列位置内隐学习的学习量逐渐减少;（２）异形同模式迁移组和异形异模式迁移组被试间内隐学习量无显著差异,被试未能内隐地习得抽象的序列模式。说明序列位置内隐学习产生的基础是水平联结,在该实验条件下没有发现垂直联结存在的证据。     

项目等距呈现过程中的系列位置效应

以中国汉字为材料,利用刘英茂提出的向前和向后联想的方法,证明在不同呈现时间和不同间隔时间条件下,系列位置曲线中首因效应和近因效应性质的分化过程。结果说明,系列位置曲线的近因部分对时间变化更为敏感,表现为绝对记忆的性质。系列位置曲线中首因效应和近因效应性质的分化,取决于项目呈现时间、项目间隔时间和系列包含的项目数。     

Automatic semantic encoding in verbal short-term memory: Evidence from the concreteness effect

The concreteness effect in verbal short-term memory (STM) tasks is assumed to be a consequence of semantic encoding in STM, with immediate recall of concrete words benefiting from richer semantic representations. We used the concreteness effect to test the hypothesis that semantic encoding in standard verbal STM tasks is a consequence of controlled, attention-demanding mechanisms of strategic semantic retrieval and encoding. Experiment 1 analysed the effect of presentation rate, with slow presentations being assumed to benefit strategic, time-dependent semantic encoding. Experiments 2 and 3 provided a more direct test of the strategic hypothesis by introducing three different concurrent attention-demanding tasks. Although Experiment 1 showed a larger concreteness effect with slow presentations, the following two experiments yielded strong evidence against the strategic hypothesis. Limiting available attention resources by concurrent tasks reduced global memory performance, but the concreteness effect was equivalent to that found in control conditions. We conclude that semantic effects in STM result from automatic semantic encoding and provide tentative explanations for the interaction between the concreteness effect and the presentation rate.