A COMPARISON OF THREE STRATEGIES FOR TEACHING OBJECT NAMES

Researchers in applied behavior analysis have been charged to provide large-scale demonstrations of the outcomes of evaluations. In this research, three experiments were conducted to examine the relative efficacy of three methods of presenting stimuli in object naming tasks. Stimuli were introduced successively, simultaneously, or using a combination of the two procedures. College adults, mentally retarded children and adolescents, and preschool children were taught to produce the names of five Hebrew letters, English words, or American coins, respectively. Presentation method was a between-subjects treatment in a factorial design. Results from the series of systematic replications were consistent in showing better posttest performance for subjects in the Simultaneous and Combined conditions. Further, follow-up data in Experiment III showed that retention was also superior for subjects trained by the Simultaneous or Combined methods. Although the acquisition criterion was met in fewer trials by subjects in the Successive condition, only several minutes more training time was required by the Simultaneous and Combined conditions. From a cost-effectiveness point of view, either of the latter two techniques should be favored over the Successive procedure for teaching verbal naming skills.     

Leader–follower risk orientation incongruence,intellectual stimulation,and creativity: A configurational approach

Prior work suggests that follower and leader risk orientation is positively associated with follower creativity. We suggest that this view is oversimplified and propose that follower creativity can be stimulated when leader and follower have diverging risk orientations. We, therefore, apply a configurational approach to creativity, evaluating varying combinations of leader and follower risk orientation on follower creativity. Across two field studies, we demonstrate that (a) follower creativity increases as leaders’ and followers’ risk orientations become more discrepant (i.e., incongruent); (b) follower creativity is higher when leader–follower dyads are congruent at moderate levels of risk orientation compared to congruence at the extremes (i.e., low and high levels); (c) follower‐experienced intellectual stimulation mediates the relationship between leader–follower risk orientation incongruence and congruence and follower creativity; and (d) that leader authority openness moderates the indirect effect of leader–follower risk orientation incongruence on creativity via follower‐experienced intellectual stimulation. Theoretical and practical implications specific to creativity and leader–follower relationships are discussed.     

Assessment of Biopsychosocial Risk Factors for Medical Treatment: A Collaborative Approach

There is a growing body of evidence that psychosocial variables have a significant ability to predict the outcome of medical treatment procedures, especially when the procedure is performed to reduce pain. The study described in this paper serves as an illustration of the valuable role psychologists can play in dealing with the challenges of biopsychosocial assessment of patients who are candidates for medical treatments, especially elective, invasive procedures. Based on a convergent model of risk factors that can potentially influence outcomes from spinal surgery and spinal cord stimulation, exclusionary and cautionary risk factors were identified, and the BHI 2 and BBHI 2 tests were used to assess them. An estimate of the prevalence of these risk factors was calculated using data obtained from 1,254 patient and community subjects gathered from 106 sites in 36 US states. Standardized Cautionary Risk and Exclusionary Risk scores demonstrated a test-retest reliability of .85 to .91. Evidence of validity of these scores was also provided based on subjective and objective criteria, using multiple groups of patients and community subjects. Recommendations are made regarding how biopsychosocial assessments could be used in collaborative settings for presurgical candidates to identify risks that could compromise a patient’s ability to benefit from other medical treatments as well. Once identified, appropriate interventions could ameliorate these risks, or lead to the consideration of other treatments that are more likely to be effective. Methods of refining this approach for specific clinical applications are also discussed.     

时距估计中的重复刺激效应

Treisman及其同事最早发现人类对时距的判断很容易受到重复刺激的影响而发生扭曲或偏离,并认为时距估计中的重复刺激具有两种效应。着重介绍了时距估计中重复刺激效应产生的机制及其理论模型、重复刺激效应的影响因素。提出了时距估计中重复刺激效应未来研究中值得关注的几个主要问题。     

经颅直流电刺激技术在物质依赖治疗中的应用

物质依赖是一种慢性、复发性脑部疾病, 给个体及社会带来极大损害。研究发现, 经颅直流电刺激(transcranial direct current stimulation, tDCS)可以通过调节背外侧前额叶(dorsolateral prefrontal cortex, DLPFC)脑区的兴奋性降低物质依赖者的渴求, 并改善受损的认知功能。tDCS具有副作用小、操作简便、费用低廉等优点, 因此在物质依赖治疗领域应用前景广泛。未来应考虑确定最佳的刺激参数及刺激位置, 同时考虑物质依赖者的种类及个体差异, 与其他疗法结合使用, 并进一步深入探索tDCS治疗物质依赖的神经机制。     

The neural basis of mirror symmetry detection: a review

The human visual system is extremely sensitive to the presence of bilateral (mirror) symmetry. In this review, I summarise the results of recent work investigating the neural basis of mirror symmetry detection, focusing in particular on brain stimulation evidence. Overall, available findings converge in pointing to the lateral occipital (LO) complex, especially in the right hemisphere, as a key region causally involved in symmetry detection. Interestingly, they also suggest that another region in the right extrastriate visual cortex, the occipital face area (OFA), is causally implied in symmetry detection, posing an interesting connection at the neural level between visual cortex responses to faces and to symmetry. Finally, this review also considers evidence on haptic symmetry detection in sighted and early blind individuals that points to LO as a multi-modal symmetry-sensitive region, and suggests that symmetry is a salient perceptual feature mediated by LO even when any visual experience is missing.     

思维聚焦对发展型文化消费产品购买意愿的影响

本研究探析了消费者的思维聚焦（过程聚焦/结果聚焦）对发展型文化消费产品购买意愿的影响,发现结果聚焦的消费者比过程聚焦的消费者对发展型文化消费产品的购买意愿更强烈。同时,时间距离对这一效应存在调节作用,即时间距离远时,这一效应显著;时间距离近时,思维聚焦对发展型文化消费产品的购买意愿没有显著影响。此外,本研究进一步考察了时间距离较远时,消费者的未来时间洞察力部分中介了思维聚焦对发展型文化消费产品的购买意愿。     

Motor Cortex Plasticity in Children With Spastic Cerebral Palsy: A Systematic Review

A review of the literature was performed to answer the following questions: Does motor cortex excitability correlate with motor function? Do motor cortex excitability and cortex activation change after a rehabilitation program that results in improvements in motor outcomes? Can the 10–20 electroencephalography (EEG) system be used to locate the primary motor cortex when employing transcranial direct current stimulation? Is there a bihemispheric imbalance in individuals with cerebral palsy similar to what is observed in stroke survivors? the authors found there is an adaptation in the geometry of motor areas and the cortical representation of movement is variable following a brain lesion. The 10–20 EEG system may not be the best option for locating the primary motor cortex and positioning electrodes for noninvasive brain stimulation in children with cerebral palsy.     

左右侧颞顶联合区对道德意图信息加工能力的共同作用——基于经颅直流电刺激技术

行为人的意图动机是我们对日常行为的对错做出判断的重要依据。以往研究表明,左右侧颞顶联合区(TPJ)都可能与信念意图的整合加工能力相关,尤其是近年来越来越多的神经刺激研究为TPJ区域与心理状态归因能力之间的因果关系提供了证据。然而,这些研究在实验任务的选取,实验设计的优化,实验结论的稳健性上仍然有改进的空间。基于此,本研究开展了两个在设计上互相补充的实验。实验中被试的TPJ区域会接受一段时间的经颅直流电刺激,并完成一系列的道德判断任务,任务是由意图和结果,以及负性和中性2×2双变量构成的4种条件的故事:无伤人、伤人未遂、意外伤人和伤人成功,被试要对故事主角的行为做出谴责程度的道德判断。结合道德判断的谴责程度和决策时间数据发现,当人们在处理信念意图信息时,左右侧TPJ区域可能是协同互动、共同发挥作用的。在激活右侧TPJ并限制左侧TPJ的情况下,人们对负性结果的谴责程度变高,人们变得更加依赖于行为结果做出道德判断;而在限制右侧TPJ并激活左侧TPJ的情况下,人们对负性意图的谴责程度变高,人们变得更加依赖于行为者的动机做出道德判断。