网络成瘾者的大脑异于常人吗?

研究网络成瘾者的大脑是否异于常人的问题有助于对网络成瘾进行定性、诊断和治疗。近年来认知神经科学研究发现, 与正常人相比, 网络成瘾者的大脑主要存在四个方面的异常：①额叶和扣带回多部位存在结构性萎缩和功能退化, 导致其对上网行为的冲动控制出现障碍。②海马功能障碍, 导致其认知功能特别是工作记忆能力下降。③奖赏中枢功能代偿性增强, 可能与其多巴胺系统的功能异常有关。④内囊后肢的神经纤维结构较密、活性较高, 可能与其长时间兴奋性操作键盘、鼠标或游戏手柄有关。目前的研究结果至少说明：网络成瘾者的大脑存在一些功能性的、与物质成瘾者类似的异常, 但这些异常是否由网络成瘾导致, 以及这些异常是结构性的, 还是持久性的, 则还需要进一步的研究来证实。     

The Concept of Abnormality in Medical Genetics

This paper explores usage of the concept ofabnormality in medical genetics and proposesdirectives for more careful usage of this concept.The conceptual difficulties are first explored, thena model is developed to assess actual usage, followedby analysis of a sample of genetic textbooks andgenetics literature. It appears that fact andvaluation are often intermingled, that referencestandards used to define 'genetic abnormalities' areoften not clear and that the concept of abnormality isoften used independent of the degree of certainty withwhich the altered genetype develops into a (seriously)harmful phenotype. On the basis of these findings itis argued that more restraint and more careful use ofthe concept of genetic abnormality of medical geneticsis appropriate as well as more agreement on the use ofreference standards.     

Continuation of Pregnancy Following the Diagnosis of a Fetal Sex Chromosome Abnormality: A Study of Parents' Counseling Needs and Experiences

Parents who decide to continue a pregnancy diagnosed with a sex chromosome abnormality (SCA) experience a variety of emotions as they deal with complex medical and genetic information. To better understand these individuals' psychosocial, educational, and support needs, 26 parents who received prenatal diagnosis of an SCA after 1989 and who had decided to continue their pregnancy were interviewed by telephone. Twenty (77%) reported they initially had a poor understanding of the predicted syndrome. All parents later met with a genetics professional. Twenty-two (92%) parents considered sterility and underdevelopment of secondary sexual characteristics to be the most negative aspects of SCAs. Contact with other parents of children with SCAs and with support organizations were generally viewed as helpful experiences. Insight gained from this study should be useful for genetic counselors and other health care providers involved with patients who have received abnormal prenatal diagnosis results.     

心理异常中“一般心理问题“的判别标准与临床表现

心理异常是相对于心理健康而言的。心理异常不仅是指心理障碍、心理疾病以及心身障碍和心身疾病,而且也包括一般心理问题。人们通常认为的所谓“心理障碍”以及心理辅导和心理咨询中常见的心理异常,大量的还是指一般心理问题。本文就一般心理问题的判别标准以及各种主要一般心理问题的临床表现与鉴别诊断作了有益的探索,为心理辅导和心理咨询工作提供了心理学依据。     

Follow-up survey of pregnancies with diagnoses of chromosomal abnormality

A small clinical survey was undertaken at East Carolina University School of Medicine to examine the factors which influenced the decisions of five families to continue pregnancies after a chromosomal abnormality was detected. Little has been published concerning the psychosocial effects after continuing pregnancies in which the fetus was diagnosed with a chromosome abnormality by amniocentesis. In order to identify the factors that influenced their decisions, an interview with each couple was undertaken using a 25-part questionnaire. This paper addresses the method of interviewing, case material, and background concerning each couple and the summary of the results.     

Adaptive logics using the minimal abnormality strategy are $$\Pi^1_1$$ -complex

In this article complexity results for adaptive logics using the minimal abnormality strategy are presented. It is proven here that the consequence set of some recursive premise sets is -complete. So, the complexity results in (Horsten and Welch, Synthese 158:41–60, 2007) are mistaken for adaptive logics using the minimal abnormality strategy.     

中医辨证思维的常法与变法

中医辨证思维涉及到"常法"与"变法"的概念,对反映在辨证分析方法中的常法与变法、中医辨证的思辨方法中的常法与变法、中医辨证原理应用的常法与变法加以研究,有利于思辨能力和医疗水平的提高.     

Posttraumatic growth following pregnancy termination for fetal abnormality: the predictive role of coping strategies and perinatal grief

Background: Research about termination for fetal abnormality (TFA) suggests that it is a traumatic event with potential negative psychological consequences. However, evidence also indicates that following traumatic events individuals may experience growth. Although TFA’s negative psychological outcomes are well documented, little is known of the potential for growth following this event. Therefore, the study’s objectives were to measure posttraumatic growth (PTG) post-TFA, examine the relationship between PTG, perinatal grief and coping, and determine the predictors of PTG.

Design: An online, retrospective survey was conducted with 161 women.

Methods: Eligible participants were women over 18 who had undergone TFA. Participants were recruited from a support organisation. They completed the Brief COPE, Short Perinatal Grief Scale and Posttraumatic Growth Inventory. Data were analysed using regression analyses.

Results: Moderate levels of PTG were observed for “relating to others,” “personal strengths” and “appreciation of life.” “Positive reframing” was a significant predictor of PTG. Despite using mainly “adaptive” coping strategies, women’s grief levels were high.

Conclusions: “Adaptive” coping strategies such as, “positive reframing” are relevant to TFA. They may act as protective factors against distress and as foundations for growth, implicating that interventions such as Cognitive Behavioural Therapy, which aim to reframe women’s experience, may be beneficial.     

Trauma Following Termination of Pregnancy for Fetal Abnormality: Is This the Path From Guilt to Grief?

Termination of pregnancy for fetal abnormality (TOPFA) is a potentially traumatic event that may lead to intense grief symptomatology. The present study included 41 couples who were assessed 1–6 months after TOPFA. No gender differences were found regarding the intensity of trauma symptomatology or the prevalence of clinically relevant trauma symptomatology, present in about a third of the sample. Most couples were congruent regarding trauma symptomatology. Women experienced guilt with significantly more frequency than men. For both genders, guilt influenced both trauma and grief symptomatology. For women only, guilt influenced grief symptomatology indirectly, through trauma symptomatology. Clinical implications are discussed.