Sex differences in aggression: Are current notions misleading?

Studied experimentally the influence of norms and sex of subjects on aggressive behaviour in same sex dyads. Two hypotheses were tested: (1) subjects will react aggressively to an unpleasant state of affairs, if they interpret it as being the result of violation of a norm on the part of another; (2) female subjects will display more aggression than male subjects under conditions of repeated provocation while male subjects will be more aggressive under conditions of infrequent or no provocation. In a 2 × 2 × 2 complete factorial design (norm violation versus norm enforcement; male versus female; low versus high reward for performance) 20 same sex pairs of students performed alternatively a sensory-motor task (victim) and a shock delivery task (aggressor). As predicted, subjects who consider other's behaviour to be a norm violation aggress more often (p <.0001). A significant interaction between sex of subject and norm violation is found in support for the second hypothesis (p <.05). It is concluded that positions grounded on the S-R paradigm are misleading for the understanding of sex differences in aggression.     

The Axioms of Set Theory

In this paper I argue for the view that the axioms of ZF are analytic truths of a particular concept of set. By this I mean that these axioms are true by virtue only of the meaning attached to this concept, and, moreover, can be derived from it. Although I assume that the object of ZF is a concept of set, I refrain from asserting either its independent existence, or its dependence on subjectivity. All I presuppose is that this concept is given to us with a certain sense as the objective focus of a ”phenomenologically reduced“ intentional experience. The concept of set that ZF describes, I claim, is that of a multiplicity of coexisting elements that can, as a consequence, be a member of another multiplicity. A set is conceived as a quantitatively determined collection of objects that is, by necessity, ontologically dependent on its elements, which, on the other hand, must exist independently of it. A close scrutiny of the essential characters of this conception seems to be sufficient to ground the set-theoretic hierarchy and the axioms of ZF. This revised version was published online in August 2006 with corrections to the Cover Date.     

The thin line between reality and imagination: attachment orientations and the effects of relationship threats on sexual fantasies

The authors examined the effects of relationship threats on sexual fantasies. In two studies, participants described a sexual fantasy following an imagination task and reported their attachment orientations. In Study 1, participants imagined relationship or nonrelationship threat scenes. Results indicated that relationship threat led to fantasies that involved interpersonal distance and hostility themes. Furthermore, following relational threat, women and more anxiously attached individuals were most likely to use relationship-maintaining strategies in their fantasies. More anxiously attached individuals were also particularly likely to represent themselves as alienated. In Study 2, participants imagined sexual or emotional threat scenes. The findings showed that sexual threat elicited self-enhancement, whereas emotional threat led to fantasies involving both self-enhancement and attachment-related themes. Emotional threat was also most likely to induce negative views of others in more avoidant women. Implications for understanding the underlying functions of sexual fantasies within the context of romantic relationships are discussed.     

Attention to low- and high-spatial frequencies in categorizing facial identities, emotions and gender in children with autism

This study was aimed at investigating face categorization strategies in children with autistic spectrum disorders (ASD). Performance of 17 children with ASD was compared to that of 17 control children in a face-matching task, including hybrid faces (composed of two overlapping faces of different spatial bandwidths) and either low- or high-pass filtered faces. Participants were asked to match faces on the basis of identity, emotion or gender. Results revealed that children with ASD used the same strategies as controls when matching faces by gender. By contrast, in the identity and the emotion conditions, children with ASD showed a high-pass bias (i.e., preference for local information), contrary to controls. Consistent with previous studies on autism, these findings suggest that children with ASD do use atypical (local-oriented) strategies to process faces.     

Fifty years of memory of college grades: accuracy and distortions

One to 54 years after graduating, 276 alumni correctly recalled 3,025 of 3,967 college grades. Omission errors increased with the retention interval, and better students made fewer errors. Accuracy of recall increased with confidence in recall. Eighty-one percent of commission errors inflated the actual grade. Distortions occur soon after graduation, remain constant during the retention interval, and are greater for better students and for courses students enjoyed most. Confidence in recall is unrelated to distortion. Courses that were not freely recalled, but had to be cued, were recalled less accurately and with less distortion. The data support a supplementary theory of memory distortion. The theory assumes that forgetting and distorting memory content are relatively independent processes, that relevant generic memories are used to fill in gaps after episodic memory fails, that systematic distortions affect autobiographical content that is emotionally and motivationally valenced, and that most individuals supplement with content that is emotionally more gratifying than the veridical content. The data conflict with dynamic displacement theories according to which screen memories actively block access to unpleasant veridical content.     

Pre-training to find a hidden platform in the Morris water maze can compensate for a deficit to find a cued platform in a rat model of Parkinson's disease

The bilateral intranigral infusion of 1 micromol 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) in adult male Wistar rats caused a specific and partial loss of substantia nigra pars compacta (SNc) dopamine neurons, a partial depletion of striatal dopamine, and a deficit to learn the intra-maze cued version of the Morris water maze. Pre-training the SNc rats in the spatial version of the water maze or simply maintaining the animals on the water maze platform reversed this deficit. This improvement was even observed when the order of the extra-maze cues presented to the rats during pre-training of the spatial version was changed during training of the intra-maze cued version. However, this deficit was not reversed either by maintaining the animals on the platform if the spatial cues were surrounded and covered with a curtain or by swimming sessions in the maze without the escape platform and the curtain. These findings suggest that none of the following elements alone, learned during the spatial task pre-training, could help SNc rats learn the intra-maze cued task: improvement of swimming skills or knowledge of the existence of the escape platform; distance between the platform and the border of the pool; location of a particular extra-maze cue; relations among extra-maze cues. However, the simultaneous presence of the escape platform and extra-maze cues (irrespective of their relational configuration) during the pre-training sessions proved to be necessary for this improving effect to occur.     

高校合并：医科院校的发展目标与制度创新

合并后的高校其发展战略目标是创办综合性、研究型大学。高校的核心职能是民族创新的智力引擎,为实现21世纪中华民族的复兴,合并后高校的中心工作就是创新。当前合并后高校的工作重点是围绕发展战略目标,实现在学科建设与重组、机构改革与设置、人才培养与使用、科研项目与市场以及管理功能等方面的制度创新。     

任务类线索对学习难易度判断及其准确性影响的实验研究

摘要：通过两个实验考察任务类线索（词频、关联性、学习次数）对学习难易度判断及其准确性的影响。结果表明：（1）词频和关联性对学习难易度判断均有显著影响,高频词对、有关联词对的预测成绩显著高于低频词对和无关联词对的预测成绩;（2）高频词对和低频词对的预测成绩均出现高估,但低频词对的估计更准确;有无关联词对相比,无关联词对预测成绩偏差更大,有关联词对的难易度判断更准确;（3）词频高低只影响成绩的预测,不影响实际回忆成绩;关联性既影响对成绩的预测,也影响实际回忆成绩。（4）学习次数对难易度判断没有显著影响,但随学习次数增加,判断准确性降低,出现低估现象。结论：材料因素对学习难易度判断等级具有较稳定的影响;不同材料因素（词频、关联性）对难易度判断准确性的影响方式不同;学习次数对学习难易度判断没有显著影响;学习难易度判断中存在练习伴随低估效应。     

Thyroid chondroplasty: Smoothing the thyroid cartilage— A retrospective study of thyroid chondroplasty for feminine neck appearance

Background: Thyroid chondroplasty is a surgical intervention for reduction of the Adam's apple, performed in trans women to achieve a more feminine appearance of the neck. This procedure is necessary since hormonal therapy given as part of gender affirming medical interventions has no effect on the mature larynx.

Objectives: We aim to describe our thyroid chondroplasty surgical technique and outcome of all thyroid chondroplasties performed during the study period.

Methods: A retrospective chart review of all thyroid chondroplasty procedures performed in a tertiary referral center between 2006 and 2015. Patients' clinical characteristics and surgical outcome were recorded and analyzed.

Results: Twenty-seven trans women underwent thyroid chondroplasty in our institution. Post-operative complications included a single patient who suffered from false vocal fold (ventricular folds) hematoma that resolved spontaneously. Five other patients had an erythematous scar. No other complications were observed.

Conclusion: Thyroid chondroplasty is a safe procedure for achieving a feminine neck contour in trans women.     

Determinants of perceived surface transparency in two-dimensional achromatic textured patterns

Achromatic transparency in 2-D surfaces composed of three adjacent areas, one created from the others, occurs when in the created area it is possible to see the two colours of the adjacent areas. Displays with two white and black intersecting bars were produced to verify the possibility of perceiving transparency in the intersection area when this was subdivided into a different number of white and black diamonds. By increasing the spatial frequency of the elements in the intersection area we investigated the impression of transparency, and found that (i) the impression of transparency increases up to a spatial frequency of 10 cycles deg(-1) and then levels off, (ii) there is a transition from a perception of transparency in which white and black are well discriminable to a perception in which a perceptually uniform grey is seen, (iii) the perception of transparency occurring when colours are discriminated seems consistent with Helson's area-luminance hypothesis [1964, in Adaptation Level Theory (New York: Harper & Row) pp 282-292], according to which the increase of spatial frequency determines the transition from the phenomenon of contrast to that of assimilation.