Priors in perception: Top-down modulation,Bayesian perceptual learning rate,and prediction error minimization

I discuss top-down modulation of perception in terms of a variable Bayesian learning rate, revealing a wide range of prior hierarchical expectations that can modulate perception. I then switch to the prediction error minimization framework and seek to conceive cognitive penetration specifically as prediction error minimization deviations from a variable Bayesian learning rate. This approach retains cognitive penetration as a category somewhat distinct from other top-down effects, and carves a reasonable route between penetrability and impenetrability. It prevents rampant, relativistic cognitive penetration of perception and yet is consistent with the continuity of cognition and perception.     

Predictions,precision, and agentive attention

Ransom, Fazelpour, and Mole (this journal - 2017) raise an important puzzle for the ‘prediction error minimization’ account of cognitive processing. That account depicts all cognitive processing as fundamentally in the business of minimizing prediction errors concerning the evolving flow of sensory information. One of the cornerstones of these highly ambitious, would-be unifying accounts is their depiction of attention as nothing other than the process of optimizing the precision (inverse variance) of critical prediction error signals. But that story, Ransom et al. suggest, cannot accommodate voluntary shifts of attention. In this paper, I show why this challenge to the grand unifying project fails. It fails because it locates the origins of voluntary attention in complexes of unanalyzed desire rather than in changing complexes of beliefs.     

研究生科研角色认同对科研创造力的影响:导师包容性领导、师门差错管理氛围的作用

以来自62个师门的411名全日制在校研究生为被试,采用问卷调查法探讨研究生科研角色认同对科研创造力的影响,并构建多层线性模型,分析导师包容性领导、师门差错管理氛围的调节作用。结果发现：（1）科研角色认同对科研创造力产生显著正向影响;（2）导师包容性领导、师门差错管理氛围在科研角色认同与科研创造力关系中均具有正向调节作用;（3）导师包容性领导对师门差错管理氛围具有显著正向影响,导师包容性领导的调节作用通过师门差错管理氛围的调节作用对研究生科研创造力产生影响。     

Evald Il’enkov and World Philosophy

To ascertain the context of Il’enkov’s philosophy, the author delves into the history of philosophy since the Sophists and Plato. For Il’enkov, philosophy is not an abstract science “about everything,” but a study of ideas – forms which are identical for thinking and being. These objective and universal forms of thought are explained as products and schemes of human activity creating the world of culture and reified in its “smart” things.     

我国一大型考试等值的铆题参数漂移检验

设置铆题来链接不同测验形式是一种常用的等值设计。但受到曝光等因素影响,铆题功能在不同施测时间会发生改变。本研究采用MH检验和logistic回归考察我国一大型考试等值的铆题质量,结果发现,有22个铆题发生参数漂移,铆题的难度参数和区分度参数可能发生漂移;这些铆题中大部分在二次使用时无法通过模型拟合检验;若不删除参数发生漂移的铆题导致较大的系统等值误差,应将铆题参数漂移检验作为等值中的一步必要工作。     

Probabilistic reasoning in prediction and diagnosis: Effects of problem type,response mode,and individual differences

In prediction, subset relations require that the probability of conjoined events is never higher than that of constituent events. However, people's judgments regularly violate this principle, producing conjunction errors. In diagnosis, the probability of a hypothesis normatively is often higher for conjoined cues. An online survey used a within‐subjects design to explore the degree to which participants (n = 347) differentiated diagnosis and prediction using matched scenarios and both choice and estimation responses. Conjunctions were judged more probable than a constituent in diagnosis (76%) more often than prediction (64%) and in choice (84%) more often than direct estimation (57%), with no interaction of type of task and response mode. Correlation, regression, and path analyses were used to determine the relationships among individual difference variables and the diagnosis and prediction tasks. Among the correlation findings was that time spent on the task predicted higher conjunction probabilities in diagnosis but not prediction and that class inclusion errors predicted increased conjunction errors in choice but not estimation. Need for cognition and numeracy were only minimally related to reasoning about conjunctions. Results are consistent with the idea that people may misapply diagnostic reasoning to the prediction task and consequently commit the conjunction error. Copyright © 2010 John Wiley & Sons, Ltd.     

人文医学的视角：裘法祖误诊误治思想初探——兼论医学伦理道德

本文结合裘法祖的相关论述,对裘法祖的误诊误治思想进行梳理勾连。认为裘法祖这一重要医学思想内涵是要勇于总结医学当中的误诊误治、老专家要“真心帮助青年人”,要学习国外经验,但也不能枉自菲薄,这一思想在当代医学医德教育当中有重要的启示意义。     

错误正波的神经发生源与功能意义解释

错误正波(error positivity, Pe)是指在错误反应后200~600ms后出现的事件相关电位(ERP)的正偏转, 对Pe的研究有助于揭示人类错误加工机制的全貌。现有研究表明Pe主要产生于前扣带回喙部, 但不同的研究对其精细神经发生源并没有达成一致。Pe的功能意义解释主要有错误意识假说、行为适应假说、情绪评估假说。当根据有关P3的理论来解释Pe的功能意义时, Pe可能反映了对错误背景的刷新。然而上述每一种对Pe的功能意义的解释都还受到了一些研究结果的质疑和挑战。基于此, 作者对现有研究存在的问题进行了总结和分析, 并对今后如何对Pe的神经发生源和功能意义的进一步研究提出了建议。     

年幼儿童的尺寸匹配误差现象

近十年来,尺寸匹配误差作为年幼儿童生活中的一种常见的尺寸误用现象逐渐受到了一些研究者的关注。现有研究主要集中在尺寸匹配误差的特点、出现频率和产生原因等方面。抑制控制的失败、神经通路的协调失败、“计划-控制”模型和“感觉-行动”模型、功能性推理偏好以及身体意识发展的不成熟等观点能够对某些类型的尺寸匹配误差现象做出解释。未来的研究应从进一步深入探讨尺寸匹配误差与假装的区别、完善研究方法以及跨文化研究的开展几方面进行。     

Reducing Measurement Error in Student Achievement Estimation

The achievement level is a variable measured with error, that can be estimated by means of the Rasch model. Teacher grades also measure the achievement level but they are expressed on a different scale. This paper proposes a method for combining these two scores to obtain a synthetic measure of the achievement level based on the theory developed for regression with covariate measurement error. In particular, the focus is on ordinal scaled grades, using the SIMEX method for measurement error correction. The result is a measure comparable across subjects with smaller measurement error variance. An empirical application illustrates the method.