Incorporating multiple secondary targets into learning trials for individuals with autism spectrum disorder

The current study examined the outcome of presenting multiple secondary targets in learning trials for individuals with autism spectrum disorder. We compared conditions in which (a) a secondary target was presented in the antecedent and consequence of trials, (b) two secondary targets were presented in the consequence of trials, (c) one secondary target was presented in the consequence of each trial, and (d) no additional targets were presented trials. The participants acquired the majority of secondary targets. Presenting one or multiple secondary targets per trial, regardless of the location of these secondary targets, increased the efficiency of instruction in comparison to a condition with no secondary target.     

Performance of a visuomotor walking task in an augmented reality training setting

Visual cues can be used to train walking patterns. Here, we studied the performance and learning capacities of healthy subjects executing a high-precision visuomotor walking task, in an augmented reality training set-up. A beamer was used to project visual stepping targets on the walking surface of an instrumented treadmill. Two speeds were used to manipulate task difficulty. All participants (n = 20) had to change their step length to hit visual stepping targets with a specific part of their foot, while walking on a treadmill over seven consecutive training blocks, each block composed of 100 stepping targets. Distance between stepping targets was varied between short, medium and long steps. Training blocks could either be composed of random stepping targets (no fixed sequence was present in the distance between the stepping targets) or sequenced stepping targets (repeating fixed sequence was present). Random training blocks were used to measure non-specific learning and sequenced training blocks were used to measure sequence-specific learning. Primary outcome measures were performance (% of correct hits), and learning effects (increase in performance over the training blocks: both sequence-specific and non-specific). Secondary outcome measures were the performance and stepping-error in relation to the step length (distance between stepping target). Subjects were able to score 76% and 54% at first try for lower speed (2.3 km/h) and higher speed (3.3 km/h) trials, respectively. Performance scores did not increase over the course of the trials, nor did the subjects show the ability to learn a sequenced walking task. Subjects were better able to hit targets while increasing their step length, compared to shortening it. In conclusion, augmented reality training by use of the current set-up was intuitive for the user. Suboptimal feedback presentation might have limited the learning effects of the subjects.     

Molecular Lamarckism: On the Evolution of Human Intelligence

In modern times, Lamarck's view of evolution, based on inheritance of acquired traits has been superseded by neo-Darwinism, based on random DNA mutations. This article begins with a series of observations suggesting that Lamarckian inheritance is in fact operative throughout Nature. I then launch into a discussion of human intelligence that is the most important feature of human evolution that cannot be easily explained by mutational selection. Thus, we are smarter than demanded by our evolutionary experience as hunter-gatherers. The difficulty lies in the inability of neo-Darwinism to satisfactorily answer the following question: How can a large energy-costly set of genes, each member of which has little apparent benefit when first created individually, all gather into a permanent existence within a short time period in each and every member of a small population (that was dispersed and geographically isolated over a huge planet) who had a low reproductive output, a low rate of beneficial mutations, and a low level of genetic contact? The article concludes with a speculative but far-reaching epigenetic theory of intelligence that does not require DNA mutation as the exclusive source of evolutionary change. Instead, cranial feedback relating brain chemistry, as affected by brain activity including education, with the genome. When it comes to the fast rate of evolution, and the dissemination of the intelligence trait worldwide, cranial feedback could make all the difference.     

What can regular and timely student feedback tell us about the teaching and learning processes?

Most studies on the evaluation of teaching focus on the input (teacher traits) or the output (student-generated products) of the teaching and learning processes. This article is based on a case study that examines the three components of teaching and learning: input, output and process. It presents a framework for collecting quantitative and qualitative data on the quality of instruction, assessment and feedback, and learning environment in college composition courses to complement the feedback provided by the end-of-course student evaluations of teaching for the purpose of monitoring, guiding, and improving instruction.     

心理治疗中的正式反馈

<正>式反馈是近年来发展出的一项提高临床实践的有效方法,它是指利用标准化的治疗效果测量工具,系统监控当事人评定的治疗进展情况,并将当事人的进展信息提供给治疗师,以供其随后的治疗作参考之用。治疗效果问卷评定系统和合作-改变效果管理系统是目前使用较为广泛的正式反馈测量工具。正式反馈的使用不仅能够改善偏离预期进展当事人(not on track,NOT)的治疗效果,提高当事人治疗进展的速率,同时还能够促进治疗双方更好的合作。正式反馈的作用机制可以使用概念化反馈干预理论和交互作用论进行解释。影响正式反馈作用效果的因素包括反馈本身的特征、当事人初始症状严重程度、治疗师方面因素以及治疗的时长等。未来研究需关注正式反馈的研究方法、作用机制及其跨文化研究的差异。     

When does feedback about success at school hurt? The role of causal attributions

The present research provides evidence that attribution theory can serve as an explanatory framework not only to explain achievers’ reactions to their achievement based on their self generated understandings of what brought these achievements about but also when such information is provided by others. Thus, when we succeed at school, others may comment on the likely reasons for this success. The present research addressed the question what it is that makes certain types of feedback on the reasons for success at school hurtful. The results of two studies conducted in the context of a school setting demonstrated that the causal structure implied by an explanation for success explains why some explanations are perceived as hurtful and elicit anger, shame, and guilt rather than pleasure or pride. Interestingly, the perceived validity of the explanation is of relatively less importance for the elicitation of hurt feelings and anger than the content of the explanation. Overall, these results provide further evidence for the importance of attributional information for social emotions in educational settings.

上司不当督导与下属绩效:反馈寻求行为和学习目标定向的作用

本研究从下属反馈管理行为的视角来探索领导与下属的社会交换过程.具体为探讨下属的反馈寻求行为在上司不当督导与下属绩效之间的中介作用,下属的学习目标定向对上述过程中的调节作用.通过问卷法获得306名下属与上司的对偶数据,基于层级回归和Bootstrap分析的结果表明:上司不当督导不仅直接影响下属的绩效,还能通过抑制下属的反馈寻求行为间接地影响员工的绩效;下属的学习目标定向调节着上司不当督导与下属的反馈寻求行为的关系,当下属的学习目标定向越低,上司不当督导对反馈寻求行为的抑制作用更加明显.     

Intentional behaviour in dog-human communication: an experimental analysis of “showing” behaviour in the dog

Despite earlier scepticism there is now evidence for simple forms of intentional and functionally referential communication in many animal species. Here we investigate whether dogs engage in functional referential communication with their owners. “Showing” is defined as a communicative action consisting of both a directional component related to an external target and an attention-getting component that directs the attention of the perceiver to the informer or sender. In our experimental situation dogs witness the hiding of a piece of food (or a favourite toy) which they cannot get access to. We asked whether dogs would engage in “showing” in the presence of their owner. To control for the motivational effects of both the owner and the food on the dogs’ behaviour, control observations were also staged where only the food (or the toy) or the owner was present. Dogs’ gazing frequency at both the food (toy) and the owner was greater when only one of these was present. In other words, dogs looked more frequently at their owner when the food (toy) was present, and they looked more at the location of the food (toy) when the owner was present. When both the food (toy) and the owner were present a new behaviour, “gaze alternation”, emerged which was defined as changing the direction of the gaze from the location of the food (toy) to looking at the owner (or vice versa) within 2 s. Vocalisations that occurred in this phase were always associated with gazing at the owner or the location of the food. This behaviour, which was specific to this situation, has also been described in chimpanzees, a gorilla and humans, and has often been interpreted as a form of functionally referential communication. Based on our observations we argue that dogs might be able to engage in functionally referential communication with their owner, and their behaviour could be described as a form of “showing”. The contribution of domestication and individual learning to the well-developed communicative skills in dogs is discussed and will be the subject of further studies. Received: 3 April 2000 / Accepted after revision: 2 September 2000