视觉诱发电位(VEP)对不同频率条纹的反差敏感性

本实验利用条纹发生器产生正弦调制的条纹作视觉刺激,用NICOLETCA—1000平均仪,从枕骨隆起上方沿中线5cm处记录瞬态视觉诱发电位。实验用四种不同反差,十种空间频率,四名被试。结果表明瞬态视觉诱发电位(C_1—C_2)的峰值随反差的增加而变化,其在空间频率上有一定的分布,最敏感处落在3—5C/deg。在阈上刺激时,被试个体有差异,但分布趋势相似,最敏感处也为3—5C/deg,这和心理物理实验获得的调制传递函数(MTF)结果很吻合。从实验结果可以看到(C_1—C_2)值对反差变化是敏感的,它反映了人视觉系统对不同空间频率上的反差敏感性,可以把它与MTF相类比。     

Editor's Note: Societal changes and expression of concern about Rekers and Lovaas' (1974) Behavioral Treatment of Deviant Sex-Role Behaviors in a Male Child

In an early study in the Journal of Applied Behavior Analysis, Rekers and Lovaas (1974) evaluated the Behavioral Treatment of Deviant Sex-role Behaviors in a Male Child. They investigated the use of reinforcement and punishment to target non-gender-conforming behaviors of a 5-year-old male child. This study was considered by some to be controversial and concerning, even near the time of publication (Nordyke et al. 1977; Winkler, 1977). The concerns focused on the ethicality of selecting non-gender-conforming behavior as a target response and the use of punishment for this type of response, particularly at the behest of parents when the young child was not seemingly distressed. The study has subsequently been used as empirical support for conversion therapy creating concerns about misinterpretation of the original article and harm to the LGBTQ+ community. This editorial reviews the concerns originally presented by Nordyke et al. (1977) and Winkler (1977) and issues an official Expression of Concern about the various harms that have been associated with this paper.     

‘Place’, ‘space’ and ‘dialogue’: conceptualising dialogic spaciality in English faith-based universities

This article proposes a conceptualisation of dialogic spaciality, and advances our understandings of the dynamic interplay of dialogic space (where meaningful conversations take place) and place (a geographic location) and the influence these have on academic life. The conceptualisation is developed from a qualitative study which focused on the relationship of dialogue, space and intellectual encounters in faith-based higher education settings in England. The article highlights the significance of dialogue in these institutions because of the emphasis traditionally placed on conversation in the Christian university tradition. It concludes that dialogic spaciality may counter elements of non-reflexive and performative ethos as something that is transferable to other universities.     

Longitudinal Associations between Oppositional Defiant Symptoms and Interpersonal Relationships among Chinese Children

Children with oppositional defiant disorder (ODD) are at increased risk for developing poor relationships with people around them, but the longitudinal links between ODD symptoms and subsequent interpersonal functioning remain unclear. In the current study, we examined the bidirectional associations between ODD symptoms and children’s relationships with parents, peers, and teachers. We included separate analyses for parent vs. teacher reports of ODD symptoms, with regard to subsequent interpersonal relationships. Participants included 256 children with ODD, recruited in China, along with their parents and teachers, assessed at three time points roughly two years apart. Parents and teachers reported child ODD symptoms at each time point, and children reported their perceptions of father– and mother–child attachment, peer relationships, and teacher–student relationships across the three time points. ODD symptoms reported either by parents or teachers predicted impairments in interpersonal functioning. Meanwhile, child interpersonal impairments with peers and teachers predicted subsequent increase in teacher-reported ODD symptoms. These findings highlight the importance of transactional models of influence—and of considering early intervention for ODD in protecting children from developing further deficits and impairments. Additionally, we discuss the perspectives of multiple informants on ODD symptoms, including their different patterns of association with subsequent interpersonal relationships.     

Sequence effects of the involuntary and the voluntary components of symbolic cueing

The orienting of attention has been found to be influenced by the previous cueing status in a spatial-cueing paradigm. The explanation for this sequence effect remains uncertain. This study separated the involuntary and the voluntary components of arrow cueing by manipulating the predicted target locations. For example, a left arrow cue may have indicated that the target was more likely to appear at the up location. Therefore, three trial types were repeated or switched between trials: cued (targets appeared along the direction of the arrows), predicted (targets appeared at the locations predicted by the arrows), and unrelated (targets appeared at the other two locations, neither cued nor predicted). RTs of cued trials were found to be significantly facilitated after a previous cued trial; however, the same effect was not observed for predicted trials. The results suggest that significant sequence effects are induced only in the involuntary component of arrow cueing. The findings support the feature-integration hypothesis for the sequence effect of symbolic cueing.

     

High-magnetic-field-induced formation of aligned equiaxed grains during directional solidification

The application of a high magnetic field is capable of inducing the formation of aligned equiaxed grains in alloys during directional solidification. The alignment and refinement of the grains is enhanced as the magnetic field intensity increases. The thermoelectric power difference at the liquid/solid interface in four alloys has been measured in situ during directional solidification and it is concluded that the formation of aligned equiaxed grains in a magnetic field should be attributed to the combined action of a thermoelectric magnetic force and a magnetization force.     

Suddenly included: Cultural differences in experiencing re‐inclusion

In the current research, we examined whether re‐inclusion (i.e. the change from a previous state of exclusion to a new state of inclusion) was perceived differently by people with individualistic and collectivistic cultural backgrounds. Individualists (German and Austrian participants) but not collectivists (Chinese participants) experienced re‐inclusion differently than continued inclusion: While collectivistic participants did not differentiate between both kinds of inclusion, individualistic participants showed reduced fulfilment of their psychological needs under re‐inclusion compared to continued inclusion. The results moreover revealed that only participants from individualistic cultures expressed more feelings of exclusion when re‐included than when continually included. These exclusionary feelings partially mediated the relationship between the different states of inclusion and basic need fulfilment.     

生命健康视野下的叙事闭锁

从弗里曼的叙事闭锁理论出发,将“叙事闭锁”重新定义为“将自己禁锢在停滞的故事空间里,无法吸纳推动叙事进程向前发展的生命状态”,并将其进一步分为职业型、创伤型、疑虑型和老年型四种类型。叙事闭锁不仅在老年人群中高发,在其他年龄阶段人群中也不少见,以至于人生故事提前进入结束状态或者处于无法更新的停滞状态。对叙事闭锁者开展叙事介入可以帮助他们提升叙事素养,重启再次体验和阐释人生的按钮,赋予他们由内而外突破闭锁的能量。当人处于一种叙事稳定性和叙事开放性的平衡状态之中时,主体经历的就是一种健康和谐的生命进程。     

“非遗”视野下的塔尔寺酥油花

<正>酥油花,是藏传佛教特有的供佛彩塑艺术,以青藏高原人民日常食用的酥油为原料,揉配鲜艳的矿物颜料,通过复杂精巧的技艺雕塑形成诸佛菩萨、人物、飞禽走兽、花鸟鱼虫、亭台楼阁等形象,内容多为佛教题材故事。青藏高原数以百计的格鲁派寺院,多会在每年的正月十五日这天供奉酥油花,但基本上都是单个的佛像和花草树木、动物的塑像,而塔尔寺的酥油花是成组的主题系列雕塑,技艺也更为精湛,因此脱颖而出备受关注。2006年塔尔寺酥油花成为我国第一批国家级非物质文化遗产项目。