样例和问题的联结方式对迁移作用的实验研究

研究了样例和问题的联结方式对学习迁移的影响。实验 1探讨了渐减提示法对学习迁移的作用 ;实验 2进一步检验了渐减提示法对诱发学习者进行自我解释的作用 ;实验 3探讨了“渐减提示 +子目标”这种联结样例和问题的方式对迁移的效果。进行重复测量设计的方差分析 ,实验结果表明 :渐减提示法是动态的联结样例和问题解决的有效形式 ,符合认知技能获得的四阶段模型和建构主义学习观的基本要求 ;渐减提示法有助于促进学习者对样例问题进行高质量的自我解释和产生心理预期 ;用“渐减提示 +子目标引导”来联结样例和问题有助于减轻认知负荷 ,有助于产生高质量的自我解释 ,对原理图式的获得有着重要作用     

文本阅读过程中目标焦点的预期推理

探讨文本阅读过程中目标焦点是否引起即时的预期推理。采用移动窗口技术,让被试阅读16篇含有目标信息的记叙文。实验1和实验2探讨已进入长时记忆中的尚未实现的目标是否作为阅读的焦点对阅读目标行为进行预期推理。实验3探讨已经实现的目标是否作为阅读的焦点对阅读目标行为产生预期作用。实验结果表明,对目标的预期推理是可以即时发生的,在目标未实现的情况下,读者会对目标信息进行预期推理;在目标已经实现的情况下,读者对有关目标的信息不产生预期推理。     

Spectral frequency and the modulation of the acoustic startle reflex by background noise

The rat's (Long-Evans) acoustic startle reflex to a high-frequency tone burst (10.5 kHz) was depressed by intense high-frequency band-pass noise (8-16 kHz) but enhanced by low frequency noise (1-2 kHz). However, contrary to the hypothesis that the depression of startle in intense background noise is produced by sensory masking, the reflex to a low-frequency tone burst (at 1 kHz) was depressed by both high- and low-frequency band-pass noise. Two additional hypotheses are offered to supplement sensory masking in order to explain the asymmetry in these data. The first is that the intratympanic reflex, which acts as a high pass filter on acoustic input, is elicited in intense backgrounds. The second is that acoustic startle reflexes elicited by intense low-frequency tones are in part elicited by their high-frequency distortion products and that these distortion products are then masked by high-frequency background noise.     

Sexual experience and recall of sexual vs. nonsexual information

The effects of both sex guilt and sexual experience on the ability to remember sexual and nonsexual information were examined Male and female subjects were asked to read and then recall facts from vignettes that concerned sexual and nonsexual dilemmas As expected, the sexually inexperienced subjects made more mistakes than did the experienced subjects when recalling sexual information There were no differences between the groups in recall of nonsexual information, and there were no differences associated with the sex guilt variable In addition, one subgroup of the sample was singled out as being particularly interesting from an applied perspective Previous research has identified high-guilt, high-experience women as being an at-risk group for unwanted pregnancy In fact, these women did have difficulty in remembering the sexual information Moreover, there was a clear bias in their recall pattern toward remembering information in favor of being sexually active Results are presented in terms of the relationship between sexual experience and sexual schemata, and between sex guilt and emotionality     

The Goldfarb Fear of Fat Scale

These two studies introduce the Goldfarb Fear of Fat Scale (GFFS) as an assessment device for use with bulimic clients. Study I presents norms and reliability data for a high school sample, as well as pilot comparisons between anorexic and normal women. Study II demonstrates that the GFFS significantly differentiates between bulimics, repeat dieters, and non-dieting women. These results suggest that the GFFS may be utilized clinically as a diagnostic tool and indicator of change, which may assist in the early identification of bulimic individuals.     

Wittgenstein's philosophies of mathematics

Wittgenstein's philosophy of mathematics has long been notorious. Part of the problem is that it has not been recognized that Wittgenstein, in fact, had two chief post-Tractatus conceptions of mathematics. I have labelled these the calculus conception and the language-game conception. The calculus conception forms a distinct middle period. The goal of my article is to provide a new framework for examining Wittgenstein's philosophies of mathematics and the evolution of his career as a whole. I posit the Hardyian Picture, modelled on the Augustinian Picture, to provide a structure for Wittgenstein's work on the philosophy of mathematics. Wittgenstein's calculus period has not been properly recognized, so I give a detailed account of the tenets of that stage in Wittgenstein's career. Wittgenstein's notorious remarks on contradiction are the test case for my theory of his transition. I show that the bizarreness of those remarks is largely due to the calculus conception, but that Wittgenstein's later language-game account of mathematics keeps the rejection of the Hardyian Picture while correcting the calculus conception's mistakes.The following abbreviations are used in this article to refer to Wittgenstein's works: WWK: Ludwig Wittgenstein and the Vienna Circle: Conversations Recorded by Friedrich Waismann, ed. B. F. McGuinness, trans. J. Schulte and B. F. McGuinness, Oxford: Basil Blackwell, 1979; CAM I: Wittgenstein's Lectures: Cambridge, 1930–32, ed. D. Lee, Chicago: University of Chicago Press, 1982; CAM II: Wittgenstein's Lectures: Cambridge, 1932–35; ed. A. Ambrose, Chicago: University of Chicago Press, 1982; PG: Philosophical Grammar, ed. R. Rhees, trans. A. Kenny, Oxford: Basil Blackwell, 1974; BIB: The Blue and Brown Books, Oxford: Basil Blackwell, 1958; LFM: Wittgenstein's Lectures on the Foundations of Mathematics: Cambridge, 1939, ed. C. Diamond, Ithaca: Cornell University Press, 1976; RFM: Remarks on the Foundations of Mathematics, ed. G. H. von Wright, R. Rhees, G. E. M. Anscombe, trans. G. E. M. Anscombe, revised ed., Cambridge: MIT Press, 1978; PI: Philosophical Investigations, ed. G. E. M. Anscombe, R. Rhees, trans. G. E. M. Anscombe, New York: Macmillan Company, 1953; Z: Zettel, ed. G. E. M. Anscombe, G. H. von Wright, trans. G. E. M. Anscombe, Berkeley and Los Angeles: University of California Press, 1970.References to PI and Z are to remark number; references to RFM are to part number (Roman numerals) and remark number (Arabic numerals); and references to the other works are to page numbers. As the evolutionary nature of Wittgenstein's work is an important theme of this article, following the abbreviation for the book in the text I have put in brackets the date of the book or the part of the book from which the quotation comes.     

幼儿外倾性与攻击行为的关系:自我控制和母亲温暖教养的调节作用

本研究以上海市某幼儿园的237名3~6岁幼儿为被试,请母亲填写幼儿气质及教养方式问卷,幼儿园教师评定幼儿的攻击行为,探讨幼儿外倾性与攻击行为的关系,以及自我控制和母亲温暖教养方式在其中的保护作用。结果表明,自我控制和母亲温暖可以调节幼儿外倾性与攻击行为的关系。与较低的自我控制和母亲温暖的幼儿相比,幼儿较高的自我控制和母亲温暖,可以弱化外倾性与攻击行为的正向关联。结果揭示了自我控制和母亲温暖对幼儿外倾性具有保护作用,有助于减弱这些个体的攻击行为。     

Startle reflex inhibition in the rat: its persistence after extended repetition of the inhibitory stimulus

Startle reflexes to intense sound bursts are inhibited by weak stimuli that briefly precede their elicitation. In three experiments the startle stimulus (a 110-dB SPL tone burst) was presented 100 ms after the final link in a train of stimuli, the length of the train varying from 1 to 1,000, its repetition rate varying from 1 per s to 10 per s, and its constituents being 40 dB or 50 dB white noise bursts of 25 ms duration. Inhibition was invariant across train length and repetition rate. In a final experiment the startle stimulus was presented a variable interval after the final link, from 40 ms to 1280 ms, with 1 or 100 noise bursts (50 dB) in the train. Inhibition developed more rapidly following the last member of the 100-stimulus train, suggestive of a "priming" or sensitization effect of stimulus repetition, but its overall strength and subsequent rate of decay were not different in the two conditions. The general persistence of inhibition following these extended series of stimuli reveals that reflex inhibition must be the outcome of a fixed and obligatory process associated with sensory input.     

Comparison of Marine and College Women's HIV/AIDS-Relevant Sexual Behaviors1

This study compares the heterosexual risk behaviors, perceptions of vulnerability to HIV/AIDS, and predictors of condom use of two groups of women with very different sexual and contraceptive histories and habits–college women and women in Marine Corps recruit training. The Marines' s]exual behaviors put them at greater risk of contracting HIV than the college students; that is, Marines reported more frequent intercourse with more partners, used condoms less frequently, and had less knowledge about HIV/AIDS transmission. Consistent with these differences, college students displayed a larger illusion of unique invulnerability than did the Marines. In general, the women who had more sexual partners and more frequent sexual intercourse were less likely to report regularly using condoms. In addition, the data provide support for Weinstein and Nicholich's (1993) recent suggestion that the relation between risk perception and risk behavior is different for different groups of people.     

Three Futures: Nightmare,Diversion, Vision

Possible futures can, for simplicity, be reduced to three broad options: “Business-as-usual economic growth” (“Nightmare”), “Green economic growth” (“Diversion”), and “Ecological sustainability” (“Vision”). We critically discuss the feasibility and sustainability of each. We find that the Nightmare option will eventually be undermined by ecological deterioration and rising resource scarcity, while the Diversion option, we argue, is doomed to failure. The Vision option is for us the only viable future, but requires unprecedented socioeconomic changes. Regardless of path, either Earth biophysical changes, or socioeconomic changes—or possibly both—will be unprecedented. Hence, predicting the future, never easy, will become much harder.