言语学习引起的脑功能和结构变化

文章系统介绍了言语学习引起的脑功能和结构可塑性变化研究的最新进展,例如：第二语言的词汇——语义学习引起的脑功能变化主要受熟练程度的影响,而句法学习引起的脑功能变化主要受获得年龄的影响;实验室言语训练可以引起语言加工相关区域激活增强或减弱,以及出现新的激活区域;第二语言学习导致了左侧顶下皮层灰质密度增加。此外,文章还总结了言语学习的脑成像研究中常用的实验范式,并提出了有待于进一步解决的关键问题     

Assessment of the functions of vocal behavior in children with developmental disabilities: a replication

Although experimental analysis methodologies have been useful for identifying the function of a wide variety of target behaviors (e.g., Iwata, Dorsey, Slifer, Bauman, & Richman, 1982/1994), only recently have such procedures been applied to verbal operants (Lerman et al., 2005). In the current study, we conducted a systematic replication of the methodology developed by Lerman et al. Participants were 4 children who had been diagnosed with developmental disabilities and who engaged in limited vocal behavior. The function of vocal behavior was assessed by exposing target vocal responses to experimental analyses. Results showed that experimental analyses were generally useful for identifying the functions of vocal behavior across all participants.     

In Spite of Indeterminacy Many Common Factor Score Estimates Yield an Identical Reproduced Covariance Matrix

It was investigated whether commonly used factor score estimates lead to the same reproduced covariance matrix of observed variables. This was achieved by means of Schönemann and Steiger’s (1976) regression component analysis, since it is possible to compute the reproduced covariance matrices of the regression components corresponding to different factor score estimates. It was shown that Thurstone’s, Ledermann’s, Bartlett’s, Anderson-Rubin’s, McDonald’s, Krijnen, Wansbeek, and Ten Berge’s, as well as Takeuchi, Yanai, and Mukherjee’s score estimates reproduce the same covariance matrix. In contrast, Harman’s ideal variables score estimates lead to a different reproduced covariance matrix.     

识别名人与陌生人面孔的功能磁共振成像

探讨名人与陌生人身份判断的脑功能。6名被试参加实验,运用功能磁共振技术采集数据,AFNI软件进行统计处理。实验结果显示,名人面孔身份识别主要激活了额颞区和梭状回等,陌生人面孔识别主要激活了脑岛和梭状回。实验表明,熟悉名人面孔与陌生人面孔识别有其不同的区域;都有梭状回的视觉加工,但是激活的程度不同。     

Training educators to implement functional analyses

The present study examined the use of an instructional workshop for training educators to conduct functional analyses. Results indicated that 2 of 3 participants met the accuracy criterion following group training, whereas 1 participant required direct verbal feedback. During generalization probes, one participant accurately conducted sessions with a student in her classroom.     

智力测验分数解释的发展趋势

智力测验分数的解释是智力心理学一个重要的研究领域。智力测验分数解释最基本的一个目的就是为了理解。随着智力理论和智力测验的发展,智力测验分数的解释出现了一些新的特点与趋势即注重智力测验分数解释的理论基础,注重智力测验分数解释的效度丰富化与从有用信息的抽取来解释测验分数的趋向。     

Playing on the typewriter, typing on the piano: manipulation knowledge of objects

Two experiments investigated sensory/motor-based functional knowledge of man-made objects: manipulation features associated with the actual usage of objects. In Experiment 1, a series of prime-target pairs was presented auditorily, and participants were asked to make a lexical decision on the target word. Participants made a significantly faster decision about the target word (e.g. ‘typewriter’) following a related prime that shared manipulation features with the target (e.g. ‘piano’) than an unrelated prime (e.g. ‘blanket’). In Experiment 2, participants' eye movements were monitored when they viewed a visual display on a computer screen while listening to a concurrent auditory input. Participants were instructed to simply identify the auditory input and touch the corresponding object on the computer display. Participants fixated an object picture (e.g. “typewriter”) related to a target word (e.g. ‘piano’) significantly more often than an unrelated object picture (e.g. “bucket”) as well as a visually matched control (e.g. “couch”). Results of the two experiments suggest that manipulation knowledge of words is retrieved without conscious effort and that manipulation knowledge constitutes a part of the lexical-semantic representation of objects.     

Experimental analysis and treatment of multiply controlled problem behavior: a systematic replication and extension

We evaluated interventions designed to reduce multiply controlled problem behavior exhibited by a young boy with developmental disabilities, using a multiple baseline design. Each intervention was designed to address a specific social function of problem behavior. Results showed that the separate interventions were useful in reducing problem behavior, and terminal schedules were reached by way of schedule thinning (attention condition) and delays to reinforcement (tangible and escape conditions).     

Translating multiple assessment techniques into an intervention selection model for classrooms

Translating current research to school-based clinical practice highlights issues not often encountered in laboratory settings. With the assistance of a consultant, teachers conducted functional analyses, brief multielement treatment comparisons, and controlled treatment evaluations under naturalistic conditions in the classroom. Teachers also provided input on treatment selection. Treatment integrity data collected throughout the study suggested that teachers implemented analyses and treatments with high integrity. The functional analysis outcomes combined with effectiveness and acceptability data led to the selection of interventions that reduced problem behavior in the classrooms for each of 3 children.     

An evaluation of a brief functional analysis format within a vocational setting

We conducted and compared both brief and extended functional analyses of disruptive behaviors for 3 individuals with developmental disabilities who attended a vocational training program. Results demonstrated that the brief assessment identified the function of 2 of the 3 participants' disruptive behavior compared to the extended assessment.