Double trouble: restrained eaters do not eat less and feel worse

Objective: While high levels of dietary restraint do not appear to reflect actual caloric restraint, it has been found to be a risk factor for a wide array of maladaptive eating patterns. These findings raise the question what, if not caloric restriction, dietary restraint entails. We propose that the very finding that restrained eaters do not eat less than they intend to do can provide an answer. Based on this disparity between the intention to restrain oneself and actual behaviour, we therefore hypothesised that high levels of restraint are associated with eating-related guilt.

Method: Three studies (N?=?148) using unobtrusive measures of food intake; different restraint scales; and different measures of guilt tested whether restraint is related to eating-related guilt.

Results: Results indicated that restraint was not associated with food intake, but instead was associated with increased levels of guilt after eating. Guilt was explicitly related to food intake. Moreover, the observed guilt could not be attributed to a general increase in negative affect.

Conclusion: The results of these studies suggest that restraint is not an indicator of actual restricted food intake, but rather a reflection concerns about food and eating manifested in eating-related guilt.     

Rethinking ‘Don't Blame the Victim’

SUMMARY

The psychology of victims and the dynamics of victimhood have been largely ignored by scholars and clinicians. While in past years the tendency has been to blame victims, more recently the tide has turned. It is now politically incorrect to explore the role of victims in violent systems, as exploring the psychology of victims has become synonymous with blaming the victim. While shying away from blame, this article will explore the familial and cultural origins of victimhood, victims' characteristics, their relationships with the perpetrators, and it will offer a victim typology. As we move from btame to a more complex understanding of violent systems, the perpetuation of these systems in our culture, and the role victims play in these systems, we provide ourselves with better tools to predict and prevent further victimization.     

Marital conflict: Correlates, structure, and context

Marital conflict has deleterious effects on mental, physical, and family health, and three decades of research have yielded a detailed picture of the behaviors that differentiate distressed from nondistressed couples. Review of this work shows that the singular emphasis on conflict in generating marital outcomes has yielded an incomplete picture of its role in marriage. Recently, researchers have tried to paint a more textured picture of marital conflict by studying spouses' backgrounds and characteristics, investigating conflict in the contexts of support giving and affectional expression, and considering the ecological niche of couples in their broader environment.     

The theory of learning styles applied to distance learning

Distance Education (DE) associated with the use of Virtual Learning Environments (VLE) as interaction tools between the student and the educator has become a large research niche spread around the world. Techniques to improve learning effectiveness in VLEs seek to find relation-ships connections between pedagogical advances and educational technological resources available in VLEs. In this context, this work sought to associate the theory of Learning Styles with the behavior of the student of Distance Education, observing their interaction with the Virtual Learning Environment and trying to associate them with their learning style identified by the CHAEA questionnaire. For this purpose, the CHAEA questionnaire was applied to a group of distance learning students and the correlation between their interactions with VLE and their learning styles was verified. The results show that there is no correlation between these elements, which may show, in fact, the lack of coherence between these theories. Seeking a model for data, a linear regression was applied and the results were, then, confirmed.     

Patch choice as a function of procurement cost and encounter rate.

The effects of patch encounter rate on patch choice and meal patterns were studied in rats foraging in a laboratory environment offering two patch types that were encountered sequentially and randomly. The cost of procuring access to one patch was greater than the other. Patches were either encountered equally often or the high-cost patch was encountered more frequently. As expected, rats exploited the low-cost patch on almost 100% of encounters and exploited the high-cost patch on a percentage of encounters that was inversely proportional to its cost. Meal size was the same at both patches. Surprisingly, when low-cost patches were rare, the rats did not increase their use of high-cost patches. This resulted in spending more time and energy searching for patches and a higher average cost per meal. The rats responded to this increased cost by reducing the frequency and increasing the size of meals at both patches and thereby limited total daily foraging cost and conserved total intake.     

中学生快速阅读训练的实验研究

本实验以初中学生为被试,围绕着快速阅读训练的作用及其条件问题,进行了两个实验。实验结果如下:(1)对初中学生进行一段时间的快速阅读训练,可以显著提高阅读成绩;(2)难度较大的文章,不适于采用快速阅读;(3)问题-文章的阅读方式在阅读速度、有效读速方面优于文章-问题的阅读方式。     

Metamorphic malicious code behavior detection using probabilistic inference methods

Existing antivirus programs detect malicious code based on fixed signatures; therefore, they have limitations in detecting metamorphic malicious code that lacks signature information or possesses circumventing code inserted into it. Research on the methods for detecting this type of metamorphic malicious code primarily focuses on techniques that can detect code based on behavioral similarity to known malicious code. However, these techniques measure the degree of similarity with existing malicious code using API function call patterns. Therefore, they have certain disadvantages, such as low accuracy and large detection times. In this paper, we propose a method which can overcome the limitations of existing methods by using the FP-Growth algorithm, a data mining technique, and the Markov Logic Networks algorithm, a probabilistic inference method. To perform a comparative evaluation of the proposed method's malicious code behavior detection, we performed inference experiments using malicious code with an inserted code for random malicious behavior. We performed experiments to select optimal weights for each inference rule to improve our malicious code behavior inferences’ accuracy. The results of experiments, in which we performed a comparative evaluation with the General Bayesian Network, showed that the proposed method had an 8% higher classification performance.     

大学生网络成瘾倾向与父母教养方式关系研究

本文使用父母教养方式评价量表(EMBU)和网络成瘾倾向自陈量表,对陕西四所高校大学生进行调查,结果表明,网络成瘾倾向者与非网络成瘾倾向者父母教养方式差异较为显著,表现在过分干涉、惩罚严厉、拒绝否定等方面。     

Flicker-light induced visual phenomena: frequency dependence and specificity of whole percepts and percept features

Flickering light induces visual hallucinations in human observers. Despite a long history of the phenomenon, little is known about the dependence of flicker-induced subjective impressions on the flicker frequency. We investigate this question using Ganzfeld stimulation and an experimental paradigm combining a continuous frequency scan (1–50 Hz) with a focus on re-occurring, whole percepts. On the single-subject level, we find a high degree of frequency stability of percepts. To generalize across subjects, we apply two rating systems, (1) a set of complex percept classes derived from subjects’ reports and (2) an enumeration of elementary percept features, and determine distributions of occurrences over flicker frequency. We observe a stronger frequency specificity for complex percept classes than elementary percept features. Comparing the similarity relations among percept categories to those among frequency profiles, we observe that though percepts are preferentially induced by particular frequencies, the frequency does not unambiguously determine the experienced percept.