Formation of the sameness-difference concept by Japanese monkeys from a small number of color stimuli

Japanese monkeys were trained to form the sameness-difference concept. In Experiment 1, four monkeys were trained with two colors to discriminate matching stimulus pairs from nonmatching pairs by reinforcing only lever-pressing responses to matching pairs with a variable-interval schedule. Three monkeys showed successful transfer of this discrimination to two new colors, thus demonstrating that some Japanese monkeys are able to form this relational concept from a minimum number of stimuli. In Experiment 2, two monkeys were trained, in a Yes/No procedure with three colors, to press one lever under matching pairs and another lever under nonmatching pairs. Poor transfer performances to three new colors suggest that simultaneously establishing two different response patterns to matching and nonmatching pairs is ineffective in forming the concept. In Experiment 3, the amount of transfer to three new colors after mastering a standard three-color matching-to-sample task was compared with that of a modified task in which correct responses were reinforced with a within-trial variable-interval schedule. All three monkeys showed greater transfer with the modified procedure. The results suggest that the variable-interval schedule adopted within trials is effective in forming the sameness-difference concept.     

再论儿童绘画中空间概念基线的发展

作者曾在1988年《心理科学通讯》第3期上发表“对三至六岁幼儿绘画中空间概念基线问题的探讨”一文。现在这篇文章进一步肯定了前文得到的初步结论,同时论证了儿童绘画中空间概念基线发展的具体过程。     

Conditional discrimination learning: A critique and amplification

Carter and Werner recently reviewed the literature on conditional discrimination learning by pigeons, which consists of studies of matching-to-sample and oddity-from-sample. They also discussed three models of such learning: the “multiple-rule” model (learning of stimulus-specific relations), the “configuration” model, and the “single-rule” model (concept learning). Although their treatment of the multiple-rule model, which seems most applicable to the pigeon data, is generally excellent, their discussion of the other two models is incomplete and sometimes inaccurate. Potential problems of terminology are discussed in the present paper, as are additional lines of research that deserve consideration by those interested in further work in this area. The issue of response versus stimulus selection (configuration versus compound-cue learning) is discussed in connection with the configuration model. Particular attention is given to Carter and Werner's criticism of the application, in studies with other species, of the learning set procedure in testing for single-rule learning. Some of the important related issues are: the bias for improvement on new problems in a series, the adequacy of a multiple-rule model to explain learning set formation, and evidence in favor of the single-rule model, at least in primates. Consideration of these additional contributions to the study of conditional discrimination learning emphasizes the usefulness of this task in the comparative study of cognitive processes.     

RALPH WENDELL BURHOE AND BEYOND: PROPOSALS FOR AN AGENDA

Abstract. This paper deals with Ralph Wendell Burhoe's scientific theology and his theory of altruism. Its task is a critical examination of some of the main aspects of Burhoe's approach within the dialogue between science and theology; its goal is to enhance his vision. In the first part I argue that Burhoe's concept of God can be related to the Christian concept of a God of love through his theory of altruism. The second part deals with Burhoe's way of yoking religion and science. I apply insights of evolutionary epistemology as well as Philip Hefner's fruitful suggestion that Burhoe's enterprise is unavoidably metaphysical. In the last part, I investigate Burhoe's philosophy of science and the dominant role of Western culture, including the Judeo-Christian tradition, in Burhoe's thought. Incorporation of a more critical attitude toward science within Burhoe's positivistic approach is suggested.     

Categorization of natural movements by pigeons: visual concept discrimination and biological motion

In three experiments, pigeons were exposed to a discriminated autoshaping procedure in which categories of moving stimuli, presented on videotape, were differentially associated with reinforcement. All stimuli depicted pigeons making defined responses. In Experiment 1, one category consisted of several different scenes of pecking and the other consisted of scenes of walking, flying, head movements, or standing still. Four of the 4 birds for which pecking scenes were positive stimuli discriminated successfully, whereas only 1 of the 4 for which pecking was the negative category did so. In the pecking-positive group, there were differences between the pecking rates in the presence of the four negative actions, and these differences were consistent across subjects. In Experiment 2, only the categories of walking and pecking were used; some but not all birds learned this discrimination, whichever category was positive, and these birds showed some transfer to new stimuli in which the same movements were represented only by a small number of point lights (Johansson's “biological motion” displays). In Experiment 3, discriminations between pecking and walking movement categories using point-light displays were trained. Four of the 8 birds discriminated successfully, but transfer to fully detailed displays could not be demonstrated. Pseudoconcept control groups, in which scenes from the same categories of motion were used in both the positive and negative stimulus sets, were used in Experiments 1 and 3. None of the 8 pigeons trained under these conditions showed discriminative responding. The results suggest that pigeons can respond differentially to moving stimuli on the basis of movement cues alone.     

Young People's Creative and Performing Arts Participation and Arts Self‐concept: A Longitudinal Study of Reciprocal Effects

This longitudinal study examines the relationship between young people's creative and performing arts participation (e.g., in dance, drama, film, music, visual arts) and their arts self‐concept. Drawing on the positive youth development (PYD) framework and the reciprocal effects model (REM) of self‐concept, a cross‐lagged panel design is implemented to explore the connections between arts self‐concept and each of school (e.g., school‐based arts instruction), home (e.g., parent–child arts interaction), and community (e.g., out‐of‐school arts instruction) creative and performing arts participation. The study drew on an Australian sample of 643 elementary and high school students from 15 schools. Analyses showed that beyond the effects of socio‐demographics and prior achievement, there are longitudinal associations (including reciprocal effects) between numerous forms of creative and performing arts participation and arts self‐concept. Implications are discussed.     

高血压病临床决策的思考

高血压病防控形势不理想的现状要求临床决策要有新的科学思维。病因正本清源是基础,应该从生物、社会心理、环境生态等宏观与微观着手,真正把握高血压病这一心身性疾病的本质。临床药物干预是手段,用药诸环节要因人而异,既尊重人体自调适规律又成为有益的修正。随着对高血压病认识的深化,临床决策将永久处于相对不确定之中。思维上临床决策应从非线性思维出发,深刻理解诊疗指南的复杂表述;整体医学观上应有“天人合一”整体观念,统筹分析;同时卫生经济学上应坚持简、便、效、廉的基本目标。     

青少年聋生的分类学联系

了考察青少年聋生分类学联系的特点,使用不同类别的基本水平概念,完成了语义归类和错误再认２个实验,并同健听生的结果进行比较。结果表明：⑴聋生和健听生有类似的类别意识,但聋生的类别意识较健听生为弱。⑵与健听生比,呈现方式对聋生的反应影响较小。聋生的分类学概念有较强的形象化倾向。青少年聋生分类学联系的特点与他们语言能力发展迟缓、使用自然手语有关。因此,应加强聋生的规范手语教学,重视培养聋生的抽象思维能力     

Understanding and using the implicit association test: V. measuring semantic aspects of trait self‐concepts

Implicit Association Tests (IATs) often reveal strong associations of self with positive rather than negative attributes. This poses a problem in using the IAT to measure associations involving traits with either positive or negative evaluative content. In two studies, we employed non‐bipolar but evaluatively balanced Big Five traits as attribute contrasts and explored correlations of IATs with positive (e.g. sociable vs. conscientious) or negative (e.g. reserved vs. chaotic) attributes. Results showed (a) satisfactory internal consistencies for all IATs, (b) explicit–explicit and implicit–implicit correlations that were moderate to high and comparable in strength after both were corrected for attenuation and (c) better model fit for latent variable models that linked the implicit and explicit measures to distinct latent factors rather to the same factor. Together, the results suggest that IATs can validly assess the semantic aspect of trait self‐concepts and that implicit and explicit self‐representations are, although correlated, also distinct constructs. Copyright © 2008 John Wiley & Sons, Ltd.     

Frame Based Formulas for Intermediate Logics

In this paper we define the notion of frame based formulas. We show that the well-known examples of formulas arising from a finite frame, such as the Jankov-de Jongh formulas, subframe formulas and cofinal subframe formulas, are all particular cases of the frame based formulas. We give a criterion for an intermediate logic to be axiomatizable by frame based formulas and use this criterion to obtain a simple proof that every locally tabular intermediate logic is axiomatizable by Jankov-de Jongh formulas. We also show that not every intermediate logic is axiomatizable by frame based formulas. Presented by Johan van Benthem