Liking for name predicts happiness: A behavioral genetic analysis

Research has established that humans tend to view their names in a positive light and liking for one’s name is positively associated with subjective well-being. In this study, the genetic basis of individual difference in liking for one’s name was examined in a survey of 304 pairs of twins from Beijing, China. Results showed that (1) liking for name was heritable (47%), while unique environment also played a role (53%); (2) the positive association between name-liking and subjective well-being is driven by common genetic (r_g: .21–.41) and non-shared environmental (r_e: .14–.22) influences. These findings have provided novel evidence that liking for one’s name is a fundamentally important trait and further shed light on the understanding of implicit self-esteem.     

Response inhibition and interference control: Effects of schizophrenia,genetic risk,and schizotypy

The ability to inhibit inappropriate responses and suppress irrelevant information is a core feature of executive control. In this study, we provide a detailed analysis of prepotent response inhibition and interference in patients with schizophrenia. To further test the role of genetic factors and subclinical schizophrenia‐like traits, we additionally studied clinically unaffected, first‐degree relatives of schizophrenia patients and assessed dimensions of schizotypy in both relatives and healthy controls. Inhibition and interference control were assessed using a battery comprising the antisaccade, Stroop, stop signal, go/no‐go, flanker, and Simon tasks. Schizophrenia patients differed from both relatives and controls in making more errors on the antisaccade task and having longer response times on the Stroop task, especially the incongruent condition. Patients also had general, that is, condition independent, increases in reaction times on the go/no‐go and flanker tasks and made more errors on the flanker and Simon tasks, suggesting general performance impairments independent of inhibitory demand. Relatives were characterized by hypometric antisaccade amplitude gain despite normal prosaccades, suggesting a selective deficit in non‐standard sensorimotor transformations. Schizotypy was correlated with inhibitory performance across a number of tasks in both relatives and controls. Generally, these effects were independent of verbal intelligence levels. Overall, the findings point to rather selective impairments of inhibitory control in the schizophrenia spectrum and confirm a previously observed deficit in antisaccade spatial accuracy as an endophenotype of schizophrenia.     

Can Bioethics be Lutheran?

Abstract :  A Lutheran bioethics must rest on a reconstructed version of Martin Luther's ethics. In the article it is shown that this ethics is Christian in that it has faith in Jesus Christ as its source. But the ethics of neighbor love is practiced in the secular world where it to some extent corresponds with natural law ethics. A Christian believer acts ethically both as an individual and as a citizen. Against the background of this understanding of Lutheran ethics, the position of Ted Peters and Gilbert Meilaender on genetics and stem cells is presented and criticized. One conclusion is that there is no Lutheran doctrine on the status of the human embryo.     

RNAi的曲折经历与发展

RNAi是当今分子生物学研究领域内最引人注目的技术之一.已经在植物、线虫、果蝇、锥虫甚至哺乳动物细胞中发现RNAi现象. RNAi同时也是体内抵御病毒入侵、抵抗外在感染和抑制转座子活动的一种重要保护机制.通过介绍RNAi 技术富有传奇色彩的诞生和发展过程以及它对分子生物学乃至整个生命科学界产生的巨大作用,认识到RNAi是多学科联合发展的结果.我们应该加强各学科之间的整合.     

Early life predictors of callous-unemotional and psychopathic traits

Psychopathy is a disorder that occurs primarily in males. Offenders with psychopathic traits are responsible for a disproportionate amount of crime in society, particularly violent crime. Early childhood is a time when individual differences in empathy and guilt—key indicators of the construct of psychopathy—are first evident. A growing number of longitudinal studies have begun to investigate how factors in infancy and early childhood predict psychopathic-like traits in later childhood, adolescence, and adulthood. These studies have suggested that parenting styles during infancy (parental sensitivity, maternal harsh intrusion, commenting on the emotional state of the child) as well as attachment styles are predictive of later psychopathic-like traits. In addition, child characteristics such as temperament and the functioning of biological systems such as the autonomic nervous system and hypothalamic–pituitary–adrenal axis are predictive. Overall, studies have suggested that at least some of the origins of psychopathic traits are present in infancy and early childhood, which is consistent with the perspective of psychopathy as a neurodevelopmental disorder. A recent evolutionary-developmental model provides hypotheses regarding how psychopathy may develop and why it is more common in males than females. This model, and its implications for intervention, is discussed in the context of the longitudinal studies that have been conducted on psychopathy.     

Genetic and Environmental Influences on Achievement Goal Orientations Shift with Age

Students engage in learning activities with different achievement goal orientations. Some students pursue learning for learning sake (i.e. mastery goal orientation), some are driven by gaining favourable judgement of their performance (i.e. performance approach goal orientation), and others focus on avoiding negative judgement (i.e. performance avoidance goal orientation). These goal orientations are linked with academic achievement, and troublingly, students report decreasing levels of goal orientations across the school years. However, little is known concerning the mechanisms that drive this decline. In a large (N = 891 twin pairs) cross‐sectional genetically informative sample (age = 8 to 22 years), we found that older students reported lower goal orientations. Then, we identified shifts in the magnitude of genetic and environmental variance in each goal orientation. For example, variance in mastery goal orientation was primarily associated with environmental factors during the elementary school years. As students entered high school, genetic influences increased, replacing shared environmental influences. Finally, we situated these findings in the larger nomological network by testing associations with psychological constructs (e.g. personality and cognitive ability) and contextual variables (e.g. parents, schools, and peers). The development of academic motivation is complex with many interconnecting factors that appear to shift with age © 2019 European Association of Personality Psychology     

Behavior,process, and scale: Comments on Shimp (2020), “Molecular (moment-to-moment) and molar (aggregate) analyses of behavior”

If we study the behavior of organisms, we must understand the ontological status of both “organism” and “behavior.” A living organism maintains itself alive by constantly interacting with the environment, taking in energy and discarding waste. Ontologically, an organism is a process. Its interactions with the environment, which constitute its behavior, are processes also, because the parts of any process are themselves processes. Processes serve functions, and the function of a process must be part of its identity. A process, by definition, extends in time. Time is the fundamental and universal measure of behavior. All processes have the property of scale. Activities of an organism have parts that are themselves activities on a smaller time scale. Scale varies continuously, and behavior may be studied on as large or as small a time scale as seems necessary. When researchers refer to the “structure” of behavior, they refer to smaller-scale activities. Attaching a switch to a lever or key is convenient, but one should never confuse operation of a switch with a unit of behavior. Shimp's (2020) “molecular” measures are small-scale measures. The molecular view based on discrete events has outlived its usefulness and should be replaced by a multiscale molar paradigm.     

The origins of party identification and its relationship to political orientations

An established position, long recognized in the literature, maintains that political party identification (PID) arises mainly from familial socialization and has a major impact on political outlooks and behaviors. An alternative view, also entrenched in the literature, holds that the direction of causation may go the other way, with political orientations influencing PID insofar as individuals seek out parties that match their ideological viewpoints. Here we use univariate and multivariate twin modeling to examine the underlying etiology assumed by those two positions, and introduce a new perspective that may help researchers make sense of PID, political orientations, and the relationships between them. Our findings indicate that: (1) PID is substantially heritable; and (2) there is empirical support for a model in which genetic and environmental factors influence political orientations, which in turn affect PID.