A new processing model for predicting performance on Pascual-Leone's test of M-space

A new model is proposed for explaining children's performance on Pascual-Leone's test of M-space. The model differs from Pascual-Leone's in three regards. (1) It assumes that children do not stop sampling a compound stimulus until every simple stimulus in their field of attention has already been noticed and responded to. (2) It assumes that the probability of sampling different combinations of simple stimuli conforms to the laws of Maxwell-Boltzman statistics rather than Bose-Einstein statistics. (3) It assumes that children's ability to detect all the simple stimuli in a compound stimulus is highly dependent both on the relative saliencies of the simple stimuli and on the length of time for which the compound stimulus is exposed. Using the developmental values of M hypothesized by Pascual-Leone, and standard techniques of computer simulation, the new model is used to generate theoretical performance curves for children at four different age levels and seven different levels of stimulus complexity. It is shown that the predicted performance curves for an exposure time of 5 sec provide a reasonable fit to the data originally reported by Pascual-Leone (1970), and that the predicted performance curves for an exposure time of 10 sec provide a reasonable fit to data obtained more recently by Parkinson (1976). Finally, it is shown that the order of children's responses as well as the number of their responses can be predicted. Two conclusions are drawn. (1) The new processing model offers a viable alternative to the model originally proposed by Pascual-Leone. (2) Regardless of which processing model is employed, the M-values originally postulated by Pascual-Leone are valid.     

Extradimensional transfer in the easy-to-hard effect

In three experiments analyzing determinants of the easy-to-hard effect, pigeons acquired a hard discrimination after training on other problems. Intradimensional pretraining resulted in immediate transfer to the hard discrimination. Extradimensional pretraining consistently did not produce immediate transfer but did facilitate learning rate. In Experiment 1, the compounding of cues from an easy extradimentsional discrimination with those from the hard discrimination resulted in the former overshadowing the latter. When different types of extradimensional discriminations were introduced in Experiments 2 and 3, the degree of transfer was not proportional to the similarity in incidental background cues across problems. The findings indicate that in the easy-to-hard effect: (a) intra- and extradimensional mechanisms jointly contribute to the development of stimulus control, (b) intradimensional transfer is more consistent with the gradient-interaction model than the selective attention model, and (c) extradimensional transfer is better accounted for by the construct of general attentiveness rather than by the neutralization of background cues.     

Heightened sexual arousal and physical aggression: An extension to females

In order to examine the effects of heightened sexual arousal upon aggression by females, subjects were first angered or not angered by a female confederate, next exposed to one of four types of stimuli (nonerotic scenes; pictures of seminude young males; pictures of nude males; pictures of couples engaged in various acts of lovemaking), and finally provided with an opportunity to aggress against the confederate by means of electric shock. In accordance with previous research conduced with males, it was hypothesized that exposure to mild erotic stimuli would inhibit subsequent aggression, while exposure to more arousing stimuli of this type would facilitate such behavior. Results offered support for both predictions. In addition, it was found that females responded with increased aggression to types of erotic stimuli previously found to inhibit such behavior by males.     

Response To Jason Springs

Jason Springs’s Healthy Conflict in Contemporary American Society is a masterful attempt to practice productive conflict and democratic dialogue in the face of static antagonisms and deep-seated divisions. In my response, I underscore Springs’s insistence on mediating between the moral imagination of Richard Rorty and the prophetic critique of Cornel West. For the author of Healthy Conflict, any hope in the survival of democracy relies on balancing critique of domination with constructive proposals for a more just and equitable world. On the one hand, Springs rejects any strong distinction between moral imagination and socio-political critique; in fact, he argues for their intertwinement, especially in the work of West. At the same time, there are moments when he suggests an opposition between expanding the moral imagination and engaging in the critical enterprise, especially as he identifies the limits in Foucault regarding normativity and democratic struggle. I respond to this slippage by arguing that Foucault, and critical theory more broadly, open up possibilities for rethinking ethics, politics, and our relationship to the violence that sustains the order of things.     

略论现代中西婚姻基础

现代社会中西的婚姻基础各有不同．中国的婚姻以生育为基础,西方的婚姻以性爱为基础,中国婚姻重家庭责任,西方婚姻重个人感情,两种婚姻模式各有利弊？它们应该相互借鉴、相互融合。     

Russia and the West: The Root of the Problem of Mutual Understanding

I examine issues tied to the allegeddifficulties of mutual understanding betweenRussia and the West. I show that some of thebackground to these issues lies in thedifference of culturally grounded differencesin perceptual and conceptual schemata. In theWest, a broadly understood Aristotelianism andin Russia Neoplatonism designate dominantattitudes to the world. The Russian `lunar'consciousness, in comparison with the `solar'consciousness of the West, tends by and largeprecipitously to totalize the world, and theexperienced multiplicity of the real isreferred to its imagined center. The differencebetween Russia and the West, limited to somedegree by mutual similarities, can become thebasis of an axiological and intellectualdialogue important for one side and theother.     

Islam and modernity: Islamist movements and the politics of position

With the advent of modernity in the West and the resulting progress that has made Western countries more ‘civilized’ than their counterpart in the Muslim world, Muslim and Arab intellectuals have triggered the debate over the utility of religion in the development of the West. Some intellectuals think that it is only by rejecting religion that the West has achieved astounding progress, while others believe that progress has no connection whatsoever with religion. By implication, Islam is not against progress and will never be if it is properly understood. Islamist movements, with their different positions towards the West and its modernity, differ as well in their conception of Islam in this changing world that is dominated in their views by the West.

略论刘一明《西游原旨》对卦爻象的运用

刘一明所著《西游原旨》,以"金丹大道"贯通全书,是清代《西游记》研究的集大成之作.由于"金丹"之道的理论基础是《周易参同契》所构建的象数易理体系,因此,揭示《西游记》与象数易理的内在关系,成为刘一明《西游原旨》的核心内容.本文从"人"、"名"、"数"、"事"四个方面,对《西游原旨》中卦爻象的运用进行了简要分析,以期弥补这方面研究的空白.     

Development of mental rotation: A speed-accuracy study

Pairs of letters and numbers were shown to 11-, 14-, and 19-year-olds. One stimulus in a pair was presented upright. The second, which was either identical to the first or a mirror image of it, was rotated 0 to 150° from the vertical. Individuals judged if the stimuli in a pair would be identical or mirror images if presented at the same orientation. They did so under instructions that emphasized accurate responses, fast responses, or fast and accurate responses. Typically, responses were (1) most accurate and slowest when accuracy was emphasized, and (2) least accurate but fastest when speed was emphasized. The data from the three instructional conditions were used to derive measures of response times in which accuracy of response was equated for the three age groups. At 95% accuracy 14- and 19-year-olds mentally rotated stimuli at the same rate, which was faster than 11-year-olds' rate. At 100% accuracy, 19-year-olds mentally rotated stimuli more rapidly than both 11- and 14-year-olds, who did not differ from one another.     

Thinking about the Needy, Justice, and International Organizations

This article has three main parts, Section 2 considers the nature and extent to which individuals who are well-off have a moral obligation to aid the worlds needy. Drawing on a pluralistic approach to morality, which includes consequentialist, virtue-based, and deontological elements, it is contended that most who are well-off should do much more than they do to aid the needy, and that they are open to serious moral criticism if they simply ignore the needy. Part one also focuses on the United States, and illustrates both how incredibly wealthy the U.S. is and some of the spending habits of its citizens; however, its considerations apply to the well-off generally. Section 3 considers whether justice provides reasons for helping the needy. Noting that justice in an extremely complex notion, it discusses numerous considerations relevant to justices scope and implications, including an extended Rawlsian conception of justice, an absolute conception, a comparative conception, the distinction between natural and social justice, and various elements of common-sense morality. Section 2 also distinguishes between agent-relative justice-based reasons, which are relevant to whether we act justly, and agent-neutral justice-based reasons, which are relevant to whether we have reasons of justicefor acting. Correspondingly, it argues that even if one can ignore the needy without acting unjustly, as philosophers like Robert Nozick and Jan Narveson contend, there may be powerful reasons of justicefor addressing their plight. Section 4 briefly address the responsibilities of international organizations like the World Bank, the International Monetary Fund (IMF), and World Trade Organization (WTO). Drawing on Section 2, it is suggested that in addition to standard reasons to act justlytowards needy members of the worlds community, there will be reasons of justicefor such organizations to aid the needy in both present, and future, generations. The article concludes by contending that the well-off in countries like the U.S. have reason to view international organizations like the World Bank, IMF, and WTO as their agents, and to seek to insure that they alleviate misfortunes amongst the worlds needy.