Parsing Pregroup Grammars and Lambek Calculus Using Partial Composition

The paper presents a way to transform pregroup grammars into contextfree grammars using functional composition. The same technique can also be used for the proof-nets of multiplicative cyclic linear logic and for Lambek calculus allowing empty premises.     

Personality and the coherence of psychotherapy narratives

The stories people construct about themselves and their social worlds are key aspects of their identities [Bruner, J. S. (1990). Acts of meaning. Cambridge, MA: Harvard University Press; McAdams, D. P. (2001). The psychology of life stories. Review of General Psychology, 5, 100–122]. Whereas certain expected life experiences (e.g., leaving home, getting a job) may be relatively easy to narrate, more unexpected and difficult events, such as undergoing psychotherapy, may pose a challenge to successful narration. Yet it is especially important to successfully narrate one’s experience in psychotherapy in order to maintain the gains from treatment [Frank, J. D. (1961). Persuasion and healing: A comprehensive study of psychotherapy. Baltimore, MD: Johns Hopkins University Press; Spence, D. P. (1982). Narrative truth and historical truth: Meaning and interpretation in psychoanalysis. New York: W.W. Norton]. The present study collected psychotherapy narratives from 76 adult former clients and coded them for the fundamental story criterion of coherence [Baerger, D. R., & McAdams, D. P. (1999). Life story coherence and its relation to psychological well-being. Narrative Inquiry, 9, 69–96]. Former clients that were high in trait Openness to experience and those at higher stages of ego development told more coherent stories about therapy. The relationship between ego development and narrative coherence remained significant even when controlling for Openness. The findings suggest that high ego development may provide narrators with the kind of sophisticated frameworks for meaning-making that are especially well-suited for the important task of making good sense of psychotherapy.     

小学生对无性别事物的性别编码

采用拟人化配声和对形容词进行性别倾向评定的方法,对小学生对无性别事物的性别编码进行了研究。结果表明：（1）小学生对无性别事物存在着性别编码倾向,而且相当稳定。这种倾向一年级时已经基本形成,传统文化和生活经验会加强这种倾向。（2）小学生对无性别事物的性别编码总体趋势一致,但也存在一定的年级差异。随年级增长,将雌性倾向事物划分为女性的比率在增长,将雄性倾向事物划分为男性的比率也在增长。（3）小学生对无性别事物的性别编码也具有性别差异。男生和女生存在以自身性别为中心的倾向。男生更多地看到中性事物的男性特征,女生更多地注意到中性事物的女性特征。与男生相比,女生性别编码的倾向更强些。     

Situational consistency in behavioral patterns of aggressive boys: Methodological considerations on observational measures

The issue of situational consistency is of great interest for early intervention with aggressive boys, but efforts to show behavior stability across settings have been unsuccessful to date, due principally to methodological problems. It is argued here that a more appropriate matching of response form, interaction partner, and situations should increase the situation consistency of observed behavior. The results support this proposition in that, more crosssetting behavior consistency was found in the pairing of situations where aggressive boys (age 6–7 years) were interacting with an adult female (mother/child versus baby-sitter/child) than in the pairing of situations where the boys were interacting with an adult male (mother/child versus father/child) or with the teacher in a nondyadic situation (classroom). The implications of using an extreme group are also discussed.This research program was funded by Le Conseil Québécois de la Recherche Sociale, the Quebec Government's FCAR research program, the Social Sciences and Humanities Research Council of Canada, the Canadian Ministry of Employment and Immigration, and the University of Montreal FDR program.     

Using animals for the training of physicians and surgeons

It is argued that cultural attitudes of a speciesist nature are background to the current practice of animal use in teaching medical students and residents. The scope of this activity is estimated, and educational theory is enlisted to suggest that many assumptions about the effectiveness of the practice are not valid. An assessment of one course used for ob-gyn training is presented. Since it is clear that animal suffering should be avoided when possible, the case is made that alternatives to animals may be used to replace animal use in much of current medical education. Medical educators should routinely question and offer adequate justification for any use of animals in medical education.     

Attitudinal and Normative Factors as Determinants of Gay Men's Intentions to Perform AIDS-Related Sexual Behaviors: A Multisite Analysis1

The purpose of this study was to test the applicability of the theory of reasoned action as a basis for understanding and predicting gay men's intentions to perform AIDS-related sexual behaviors. A total of 314 self-identified gay or bisexual men from Seattle, Denver, and Albany participated in the study. They were asked to indicate their intentions to perform 15 specific sexual behaviors chosen to represent different degrees of risk of contracting AIDS or other sexually transmitted diseases. In addition, they were asked to respond to items measuring the attitudinal and normative considerations regarding each behavior. As expected, the results showed that the gay men's intentions were significantly predicted by the two factors. More interesting, it was found that, although attitudes are consistently the more important determinants of intentions for all the respondents, the importance of normative considerations varies across cities. This difference in normative considerations is interpreted in light of the differences in the structure of the three gay communities. Implications for designing sample-specific intervention programs are discussed.     

Apparent duration and spatial structure

In three experiments, we investigated the relative perceived duration of a full bandwidth iniage and a set of high- and lowpass filtered images of a scene, briefly presented on a visual display unit. In Experiment 1, the various images were compared with each other, using a paired comparison method. All images were presented for 40 msec, and observers were asked to judge which of each pair of images had the longest duration. The results showed that images containing a wide spatial frequency bandwidth were judged to be of longer duration than were images of a narrower bandwidth, regardless of whether the latter were high- or lowpass filtered. In Experiment 2, a 40-msec presentation of each of the images was compared with a presentation of a probe that was 20,40, 60, or 80 msec in duration. Observers again judged which of each pair of images had the longest duration. The results were very similar to those of Experiment 1, with wide bandwidth images being judged to be of longer duration than were narrow bandwidth images. In Experiment 3, instead of comparing the various filtered versions of the image with each other, we attempted to obtain a direct measure of perceived duration by comparing a flashing LED to a 40-msec flash of a subset of the images used in the previous experiments. The observers’ task was to adjust the duration of the LED flash to match the perceived duration of each image. The results confirmed the results of the previous experiments, again indicating that wide bandwidth images are perceived to have longer phenomenal durations than narrow bandwidth images are perceived to have. These results could be predicted from previous research in the literature on the effects of spatial frequency on perceptual lag but not from research on visual persistence. It is argued that the effects described here can probably be explained best by postulating a link between perceived duration and the integration of separately processed spatial frequency information.     

PASTIS: A program for curve and distribution analyses

Reaction time (RT) data afford different types of analyses. One type of analysis, called “curve analysis,” can be used to characterize the evolution of performance at different moments over the course of learning. By contrast, distribution analysis aims at characterizing the spread of RTs at a specific moment. Techniques to deduce free parameters are described for both types of analyses, given an a priori choice of the curve or distribution one wants to fit, along with statistical tests of significance for distribution analysis: The log likelihood technique is used if the probability density function is given; otherwise, a root-mean-square-deviation minimization technique is used. A program—PASTIS—that searches for the optimal parameters of the following curves is presented: power law, exponential, and e-based exponential. PASTIS also searches for Weibull and the ex-Gaussian distributions. Some tests of the software are presented.     

Coping Strategies,Substance Use,Sexual Activity,and HIV Sexual Risks in a Sample of Gay Male STD Patients1

The relationships of coping strategies with levels of substance use and sexual activity, and with HIV sexual risks, are examined in a sample of gay male STD clinic patients (n = 416). Previous research has suggested that use of problem-focused coping strategies should be negatively related to levels of substance use, levels of sexual activity, and HIV sexual risks; use of emotion-focused coping strategies should be positively related to these outcomes. It is argued that substance use and sexual activity clearly fit within a coping perspective, but that the HIV sexual risks/coping relationship is less clear. In multivariate analysis, the problem-focused strategy of advice seeking is negatively related to the number of types of drugs used and to the number of sexual partners; the problem-focused strategy of support seeking is negatively related to the number of days using drugs; and the use of emotion-focused strategies is positively related to the number of types of drugs used. Problem-focused coping strategies are less directly related to engaging in HIV sexual risks when measures of substance use and of sexual activity are included in the prediction; emotion-focused coping strategies are more stably related to HIV risk. Indirect effects of coping on HIV risk are also identified through the effects of coping on the number of types of drugs used, number of sex partners, and number of times having sex. It is proposed that the relationships between coping and levels of substance use and sexual activity reflect the use of these activities as ways of relieving strain, but that relationships between coping and HIV sexual risks involve less clearly understood direct and indirect relationships.