汉字内隐记忆的实验研究(Ⅲ):检验加工分离说的修正模型

实验1和实验2依据目标字和非目标字两种条件,比较了再认、整字偏好、包含、排除四类测验。在“过程不纯净”假设的前提下．检验了加工分离说（PDP）的修正模型并得到以下结果：（1）PDP修正馍型的结论与匹配比较法的结果吻合。本实验条件下,偏好测验是“纯净”的．但无意识影响参与了再认测验。（2）PDP修正模型关于R＞R。的理论结果得到了目标字与非目标字两种条件下的实验的证实。另外．关于无意识影响遵循的规律与指导语无关的理论推测也得到了证实。（3）再认与偏好测验出现了功能分离。PDP修正模型可以解释其本质。（4）750ms呈现刺激时,反应倾向的规津是：外显过程比内隐过程严格;两过程均不受注意程度的作用而发生波动。     

THE GENERALITY AND SOCIAL VALIDITY OF A COMPETENCY-BASED SELF-CONTROL TRAINING INTERVENTION FOR UNDERACHIEVING STUDENTS

We evaluated the effectiveness, generality, and social validity of a modified version of a competency-based self-control package developed by Stevenson and Fantuzzo (1984). Three underachieving fifth-grade students were trained to use this intervention to increase their arithmetic proficiency. Results indicated that the intervention produced improved arithmetic performance. Moreover, all possible classes of generalization were evidenced for the participants. Social validity data showed that the children's arithmetic performance either surpassed or approached the mean performance of their higher achieving classmates. Additionally, teachers reported that the intervention was effective, appropriate for classroom use, and easy to implement.     

ACQUISITION OF SIGN LANGUAGE BY AUTISTIC CHILDREN II: SPONTANEITY AND GENERALIZATION EFFECTS

Autistic children typically do not use their language repertoire in order to communicate. Six autistic children who exhibited poor communication skills were trained to use their sign repertoire to make spontaneous requests of adults. Training consisted of imitative prompting, fading, and differential reinforcement, and included aspects of incidental teaching. The children displayed an increase in the rate and variety of spontaneous sign requests (Experiment 1). Generalization of spontaneity across adults (Experiments 1 and 2) and settings (Experiment 2) was also observed. We suggest that spontaneity may be facilitated when language is brought under the control of broadly defined stimuli such as adult attention rather than narrowly defined stimuli such as the presence of specific objects or verbal prompting in the form of questions. Finally, response generalization was observed as well (Experiment 1). Specifically, as spontaneity increased, self-stimulatory behavior decreased. This result may be accounted for in terms of reinforcer competition, reinforcer consistency, or discriminative stimulus effects.     

Using Behavioral Skills Training to Promote the Generalization of Parenting Skills to Problematic Routines

Research has demonstrated the efficacy of a behavioral parent training program for skills acquisition; however, few studies have examined the extent to which those skills generalize to the home or the effect that they have on child behavior. A multiple baseline across participants design was used to assess (a) caregiver accuracy with implementation of three parenting skills, and (b) the effects of the parenting skills on child behavior. Results demonstrated that three caregiver participants successfully generalized parenting skills taught during behavioral skills training (BST) to naturally occurring routines, and the behavior of each caregiver's child improved following BST.     

分类和概念对恐惧泛化的影响机制

恐惧泛化与多种焦虑障碍的病理基础密切相关。例如创伤后应激障碍个体往往持续地逃避与创伤事件有关的刺激,遭受着创伤痛苦折磨。本文在厘清知觉辨别与恐惧泛化关系的基础上,着力于高级认知过程(分类与概念相似性、典型性和人工概念)对恐惧泛化的影响,回顾了恐惧泛化的相关神经机制,并揭示恐惧泛化对焦虑障碍患者的临床治疗启示。未来研究应将知觉和高级认知维度的恐惧泛化进行整合研究,同时扩充恐惧习得和泛化的神经回路,以促进人类恐惧泛化更深入的研究。     

On Stimulus Generalization and Stimulus Classes

Stimulus generalization has been defined as the spread of effect of reinforcement for responses emitted in the presence of one stimulus to different stimuli presented under extinction conditions. As a result of stimulus generalization, novel stimuli come to exert stimulus control over members of the response class. Studies in the applied behavior analysis literature, however, have reported experimental preparations that included prompting and reinforcement procedures during what were claimed to be stimulus generalization conditions. These studies violated the procedural requirement that stimulus generalization be tested under extinction conditions. Responses that come under the control of a class of stimuli may do so by direct training or by stimulus generalization. It is desirable for organisms to respond in the presence of members of an appropriately constructed stimulus class, but we should understand the mechanism of entry into the class by its members. If inaccurate claims of stimulus generalization are made when training procedures are used in the ostensible generalization conditions, the robustness of the original training procedures will be over estimated. By adhering to the operational requirements of behavioral definitions, we could better understand the power and limits of our educational and training procedures.     

Generalization of the disruptive effects of alternative stimuli when combined with target stimuli in extinction

Differential‐reinforcement treatments reduce target problem behavior in the short term but at the expense of making it more persistent long term. Basic and translational research based on behavioral momentum theory suggests that combining features of stimuli governing an alternative response with the stimuli governing target responding could make target responding less persistent. However, changes to the alternative stimulus context when combining alternative and target stimuli could diminish the effectiveness of the alternative stimulus in reducing target responding. In an animal model with pigeons, the present study reinforced responding in the presence of target and alternative stimuli. When combining the alternative and target stimuli during extinction, we altered the alternative stimulus through changes in line orientation. We found that (1) combining alternative and target stimuli in extinction more effectively decreased target responding than presenting the target stimulus on its own; (2) combining these stimuli was more effective in decreasing target responding trained with lower reinforcement rates; and (3) changing the alternative stimulus reduced its effectiveness when it was combined with the target stimulus. Therefore, changing alternative stimuli (e.g., therapist, clinical setting) during behavioral treatments that combine alternative and target stimuli could reduce the effectiveness of those treatments in disrupting problem behavior.     

传言对人际信任影响的泛化效应

本研究使用学习-测试范式考察传言对人际信任影响的泛化效应。学习阶段,被试对中性面孔和不同效价的传言或真实信息进行配对学习;测试阶段,被试作为投资者与陌生对家完成信任投资游戏,对家面孔与学习面孔具有40%相似性。结果发现,传言能够影响学习面孔的信任,并调节与学习面孔相似的对家面孔的信任投资;同时,传言对信任投资的影响只发生在女性对家身上。上述发现揭示传言对人际信任能够进行选择性泛化。     

BUILDING RESPONSE CLASSES: A COMPARISON OF TWO PROCEDURES FOR TEACHING GENERALIZED POURING TO LEARNERS WITH SEVERE DISABILITIES

Five individuals with profound mental retardation received instruction on liquid pouring. The effects of two training strategies on performance with nontrained pitchers and receptacles were compared within a split multiple baseline design across subjects. One training approach followed general case instruction guidelines in which both difficult and easy teaching examples were selected that sampled the range of relevant stimulus and response variation. The second training approach approximated the early steps in an easy-to-hard sequencing strategy and involved using only a set of easy teaching examples that did not sample the full range of relevant stimulus and response variation required for successful pouring in natural settings. Results indicated that only after training with the full set of general case examples did the learners become competent with the nontrained generalization probe tasks. In addition, the set of easy examples resulted in learners performing topographically predictable errors with the generalization probe tasks.     

TEACHING SELF-CATHETERIZATION SKILLS TO CHILDREN WITH NEUROGENIC BLADDER COMPLICATIONS

We examined the effects of simulation training on the acquisition of self-catheterization skills in 2 female children with spina bifida. Based on a task analysis, the children were taught to perform on a doll each of the components of preparation, and, using a mirror to locate the urinary meatus, to insert and remove the catheter and to clean-up. Before, during, and after training, the children's performance of the skills on the doll and on themselves was assessed. Results of a multiple baseline design across subjects and skill components showed that doll training facilitated the children's acquisition of self-catheterization skills.