Navigation as a source of geometric knowledge: young children's use of length, angle, distance, and direction in a reorientation task

Geometry is one of the highest achievements of our species, but its foundations are obscure. Consistent with longstanding suggestions that geometrical knowledge is rooted in processes guiding navigation, the present study examines potential sources of geometrical knowledge in the navigation processes by which young children establish their sense of orientation. Past research reveals that children reorient both by the shape of the surface layout and the shapes of distinctive landmarks, but it fails to clarify what shape properties children use. The present study explores 2-year-old children's sensitivity to angle, length, distance and direction by testing disoriented children's search in a variety of fragmented rhombic and rectangular environments. Children reoriented themselves in accord with surface distances and directions, but they failed to use surface lengths or corner angles either for directional reorientation or as local landmarks. Thus, navigating children navigate by some but not all of the abstract properties captured by formal Euclidean geometry. While navigation systems may contribute to children's developing geometric understanding, they likely are not the sole source of abstract geometric intuitions.     

Longitudinal changes in behavioral approach system sensitivity and brain structures involved in reward processing during adolescence

[Correction Notice: An Erratum for this article was reported in Vol 48(5) of Developmental Psychology (see record 2012-09244-001). Figure 2 was distorted in production. The correct version is presented in the erratum.] Adolescence is a period of radical normative changes and increased risk for substance use, mood disorders, and physical injury. Researchers have proposed that increases in reward sensitivity (i.e., sensitivity of the behavioral approach system [BAS]) and/or increases in reactivity to all emotional stimuli (i.e., reward and threat sensitivities) lead to these phenomena. The present study is the first longitudinal investigation of changes in reward (i.e., BAS) sensitivity in 9- to 23-year-olds across a 2-year follow-up. Support was found for increased reward sensitivity from early to late adolescence, and evidence was found for decline in the early 20s. This decline is combined with a decrease in left nucleus accumbens (Nacc) volume, a key structure for reward processing, from the late teens into the early 20s. Furthermore, we found longitudinal increases in sensitivity to reward to be predicted by individual differences in the Nacc and medial orbitofrontal cortex (OFC) volumes at baseline in this developmental sample. Similarly, increases in sensitivity to threat (i.e., behavioral inhibition system sensitivity) were qualified by sex, with only females participants experiencing this increase, and predicted by individual differences in lateral OFC volumes at baseline. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

Correction to urošević et Al. (2012)

Reports an error in "Longitudinal Changes in Behavioral Approach System Sensitivity and Brain Structures Involved in Reward Processing During Adolescence" by Sne?ana Uro?evi?, Paul Collins, Ryan Muetzel, Kelvin Lim and Monica Luciana (Developmental Psychology, Advanced Online Publication, Mar 5, 2012, np). Figure 2 was distorted in production. The correct version is presented in the erratum. (The following abstract of the original article appeared in record 2012-05404-001.) Adolescence is a period of radical normative changes and increased risk for substance use, mood disorders, and physical injury. Researchers have proposed that increases in reward sensitivity (i.e., sensitivity of the behavioral approach system [BAS]) and/or increases in reactivity to all emotional stimuli (i.e., reward and threat sensitivities) lead to these phenomena. The present study is the first longitudinal investigation of changes in reward (i.e., BAS) sensitivity in 9- to 23-year-olds across a 2-year follow-up. Support was found for increased reward sensitivity from early to late adolescence, and evidence was found for decline in the early 20s. This decline is combined with a decrease in left nucleus accumbens (Nacc) volume, a key structure for reward processing, from the late teens into the early 20s. Furthermore, we found longitudinal increases in sensitivity to reward to be predicted by individual differences in the Nacc and medial orbitofrontal cortex (OFC) volumes at baseline in this developmental sample. Similarly, increases in sensitivity to threat (i.e., behavioral inhibition system sensitivity) were qualified by sex, with only females participants experiencing this increase, and predicted by individual differences in lateral OFC volumes at baseline. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

儿童内疚情绪对其亲社会行为的影响

为考察儿童内疚情绪对其亲社会行为的影响,本研究采用现场实验的方法探讨了小学5年级学生内疚情绪与其亲社会行为的关系。结果显示：（1）内疚情绪能促进儿童亲社会行为水平的提高,难过情绪不能促进儿童亲社会行为水平的提高;（2）当儿童将注意力集中于自己对团体造成的不良影响,产生内疚情绪,但如果其将注意力集中于自己的不良结果时,则产生难过情绪。结论：儿童的消极情绪是否能促进其亲社会行为水平的提高,取决于其将注意力集中于自己还是他人。     

History,Current Status,and Future Prospects of Counseling in South Korea

Although the counseling profession was introduced to South Korea in the 1950s by American delegates of education, counseling has been only lately recognized as a specialized field that requires distinctive knowledge and skills. In this article, the authors describe the history and the current status of counseling in South Korea and then discuss challenges and future prospects.     

The Influence of Visually Dangerous Information on Imitation in Children

Abstract

Previous studies have demonstrated that when perceiving the actions of another agent, individuals will automatically imitate those observed actions. This study investigated how children’s imitation of physical actions was influenced by either visually neutral or visually dangerous information. Participants were presented with a series of pictures in which an agent was reaching towards either a neutral object or a dangerous object. Results showed that the imitation effect occurred when the agent was observed reaching and grasping a neutral object. However, this effect was not present when the agent’s hand was observed reaching towards or grasping, the non-handle side of a dangerous object. These results suggest children can predict potential behavioral consequences and adjust their imitative action depending on the perceived danger of the action.     

Gender Differences in the Relationships between Parental Marital Conflict,Differentiation from the Family of Origin,and Children’s Marital Stability

Abstract

This study aimed to examine gender differences in the relationships between parental marital conflict, differentiation from the family of origin, and children’s martial stability. Data were collected from 453 married individuals in South Korea. The results revealed that parental marital conflict was directly related to children’s marital stability albeit only among married men. Emotional cutoff and family projection mediated the relationship between parental marital conflict and children’s marital stability among men and women, respectively. These findings can be used to develop gender-specific evidence-based interventions that enhance marital stability (e.g., programs for married and premarital couples).     

我国宗教立法论要

中国共产党和中国政府历来重视对宗教事务作法律上的规定。依法管理宗教事务是我国新时期宗教工作的基本方针。新时期新阶段积极推进宗教立法应当以保护公民的宗教信仰自由、积极引导宗教与社会主义社会相适应以及抵制境外宗教渗透为宗旨,坚持宗教信仰自由原则、独立自主自办原则以及政教分离原则。     

The Role of Friends’ Appearance and Behavior on Evaluations of Individuals on Facebook: Are We Known by the Company We Keep?

This research explores how cues deposited by social partners onto one’s online networking profile affect observers’ impressions of the profile owner. An experiment tested the relationships between both (a) what one’s associates say about a person on a social network site via “wall postings,” where friends leave public messages, and (b) the physical attractiveness of one’s associates reflected in the photos that accompany their wall postings on the attractiveness and credibility observers attribute to the target profile owner. Results indicated that profile owners’ friends’ attractiveness affected their own in an assimilative pattern. Favorable or unfavorable statements about the targets interacted with target gender: Negatively valenced messages about certain moral behaviors increased male profile owners’ perceived physical attractiveness, although they caused females to be viewed as less attractive.