Depth motion sensitivity functions

Functions reliably describing perception of motion in depth have been established experimentally by using psychophysical methods of size and distance estimations and threshold measurements. The stimuli were generated with a new hybrid technique yielding an image refresh rate of 1667 Hz. In this way it was possible to generate rapid expansions and contractions of the moving checkerboard pattern constituting the stimulus for depth motion perception. The results showed that perceived size constancy as well as depth impression varied with oscillation frequency. Under the conditions of slow motions (oscillation frequencies around 2 Hz), perfect size constancy was obtained. Above that limit, size constancy systematically decreased, and with oscillation frequencies of about 5 Hz the perceived size constancy was close to zero when small-sized patterns were used. Under the conditions of wide field stimulation (when the pattern subtended 66 degrees of visual angle), the cut-off limit increased to 16 Hz. Since the perception of depth motion amplitudes as well as perceived velocities of the visual object are related to perceived size constancy, the findings have certain implications for theoretical explanations of depth motion perception. Received: 15 December 1997 / Accepted: 21 December 1998     

Postmodern society and social networks: open and anticipation dialogues in network meetings

Network therapy flourished in the U.S. during the 1970s, but has since dwindled there and begun to find new applications in Europe, especially in the Nordic countries. State social and healthcare systems, in developing deep vertical expertise, seems to build up a need for complementary horizontal expertise. The latest theories of sociology are used to analyze the need for networking, with the focus on language and dialogue as specific form. Two approaches developed in crisis service for psychotic patients (Open Dialogue) and in consultation for stuck cases in social care (Anticipation Dialogues), are dealt with. What becomes essential seems no longer to be the therapeutic method itself but the ability to see the polyphonic nature of clients' reality. In this respect, language--and dialogue as a specific form of being in language--as the focus of treatment, makes the practical forms of different approaches secondary.     

The Bangor Voice Matching Test: A standardized test for the assessment of voice perception ability

Recognising the identity of conspecifics is an important yet highly variable skill. Approximately 2 % of the population suffers from a socially debilitating deficit in face recognition. More recently the existence of a similar deficit in voice perception has emerged (phonagnosia). Face perception tests have been readily available for years, advancing our understanding of underlying mechanisms in face perception. In contrast, voice perception has received less attention, and the construction of standardized voice perception tests has been neglected. Here we report the construction of the first standardized test for voice perception ability. Participants make a same/different identity decision after hearing two voice samples. Item Response Theory guided item selection to ensure the test discriminates between a range of abilities. The test provides a starting point for the systematic exploration of the cognitive and neural mechanisms underlying voice perception. With a high test-retest reliability (r=.86) and short assessment duration (~10 min) this test examines individual abilities reliably and quickly and therefore also has potential for use in developmental and neuropsychological populations.     

Self-Esteem and Negative Affect as Moderators of Sociocultural Influences on Body Dissatisfaction,Strategies to Decrease Weight,and Strategies to Increase Muscles Among Adolescent Boys and Girls

The study was conducted to examine the impact of sociocultural influences and the moderating role of self-esteem and negative affect on body dissatisfaction and body change strategies for both adolescent boys and girls. Surveys designed to assess body dissatisfaction, body change strategies to decrease weight and increase muscles, perceived sociocultural pressures to lose weight and increase muscles, self-esteem and negative affect were administered to 587 boys and 598 girls aged between 11 and 15 years. The majority of respondents were from Anglo-Australian backgrounds (83%) with the remainder being from Asian and European non-English-speaking backgrounds. The sociocultural influences were found to significantly predict body dissatisfaction and body change strategies for both boys and girls. However, in the case of boys, self-esteem was found to moderate the impact of the sociocultural influences in predicting body change strategies. It was primarily the boys with low self-esteem who were more affected by the sociocultural pressures whereas the girls were affected independently of their self-esteem. Negative affect was also found to play a moderating role on some of the sociocultural influences in predicting strategies to increase muscles. Both boys and girls with higher levels of negative affect were more likely to be affected by sociocultural messages directed at increasing muscles. The results from the present study demonstrate that as well as examining the direct influence of sociocultural pressures, it is also important to examine how these may be moderated by self-esteem and negative affect.     

青少年期母子性格与家庭亲密度的关系:性格喜好的作用

研究旨在考察性格喜好与母子性格、家庭成员亲密度的关系以及性格喜好在其他两个变量之间的中介作用。成都市632对初高中学生及其母亲分别自评并填写了艾森克人格问卷,同时评价喜欢对方性格的程度。另外,青少年还报告了与家庭成员的亲密程度。通过相关分析、多元方差分析、层级回归分析以及结构方程模型建模,结果发现：性格喜好与母亲性格、青少年性格均有显著关系,青少年对母亲的性格喜好程度与家庭成员间的亲密感有显著正相关。青少年性格和青少年对母亲的性格喜好程度能直接预测家庭成员亲密度,同时青少年和母亲的性格还通过青少年对母亲的性格喜好程度间接作用于家庭亲密度,提示性格喜好在二者的关系中发挥了重要的中介作用。     

Making gender matter: the role of gender-based expectancies and gender identification on women's and men's math performance in Sweden

It is well established that an emphasis on gender differences may have a negative effect on women's math performance in USA, Germany and the Netherlands. It has further been found that an individual's identification with the stereotyped group may moderate effects of negative stereotypes. The present study investigated how gender-based expectancies affected the math performance of women and men in Sweden, a nation with a smaller gender gap than in other countries, and a strong cultural emphasis on gender equality. Participants, 112 female and 74 male undergraduate math students from Swedish universities, completed a difficult math test in which their gender was either linked to their test performance or not. Men performed better than women when gender was made relevant among participants who did not see their gender as an important aspect of their identity, while participants high in gender identification were unaffected by gender identity relevance. Moreover, the gender relevance manipulation affected men's performance more than women's. The results deviate from findings on US samples, indicating that the role of group identification as a moderator of stereotype-based expectancy effects is complex, and that factors in the cultural context may interact with individual differences in identification to determine the impact of negative stereotypes.     

The Meanings and Manifestations of Religion and Spirituality among Lesbian, Gay, Bisexual, and Transgender Adults

The present study employed a mixed method approach in the effort to explore religious and spiritual practices among lesbian, gay, bisexual, and transgender (LGBT) individuals, as well as the meanings ascribed to the terms religiosity and spirituality by LGBT adults. Data were collected via a cross-sectional survey consisting of open- and close-ended items among 498 LGBT (lesbian, gay, bisexual, transgender) identified individuals attending an annual Pride event in a large northeastern city. Both quantitative and qualitative findings suggested that consistent with other studies, spirituality was defined largely in relational terms (e.g., in terms of one’s relationship with God and with self). Religion, in contrast, was defined largely in terms of communal worship and in terms of its negative influences in the lives of individuals and communities. For this sample of LGBT persons, spiritual identities were more pronounced than religious ones, and this pattern may be explained by their understanding of the spiritual self in relation to prosocial engagement and interconnectedness with others, the world around them, and the universe. Further, religious affiliation and practices were explained, in part, by the religion in which the individual was raised, level of educational attainment, as well as the developmental stage in which the person is currently situated. The findings highlight the reality that a substantial number of LGBT individuals may remain committed to religious and spiritual life, which may be related to a motivation to make sense of one’s place in the world especially in light of societal misunderstandings and intolerance to LGBT individuals.     

Exposure to Violence, Support Needs, Adjustment, and Motivators Among Guatemalan Humanitarian Aid Workers

Indigenous aid workers carry out the majority of humanitarian aid work, yet there is little empirical information available on their support needs in different contexts. Focus groups (N = 26: Study 1) and a survey (N = 137; Study 2) were conducted with Guatemalan aid workers to explore their exposure to violence, posttraumatic stress symptoms, burnout, support needs, and motivators. Participants reported experiencing an average of 13 events of community violence and 17% reported symptoms consistent with posttraumatic stress disorder (PTSD). Direct community violence exposure and levels of emotional exhaustion were positively related to PTSD symptoms, while levels of personal accomplishment were inversely related to PTSD symptoms. Expressed support needs, motivators and rewards for aid work in the face of adversity are also reported as potential protective factors for further exploration. Implications for training and support of aid workers in similar contexts are also suggested.     

Supporting Creativity Or Conformity? Influence of Home Environment and Parental Factors on the Value of Children's Creativity Characteristics

Although creativity is a desirable skill, parenting for creativity may be quite a challenge and may be less favored than parenting for conformity. The present study aims to investigate parent-related factors that may support creativity versus conformity at home. To this end, this study examined how parents’ attitudes and values toward creativity, creative home environment, and mindful parenting style are related to parents’ perceptions of creative versus socially acceptable characteristics. Analyses of the data collected from 1324 parents (predominantly mothers) indicated that parents were more supportive of creativity traits than socially acceptable characteristics. Most importantly, parents’ attitudes and values toward creativity and creative home environment were significantly and positively related to support for creativity characteristics, whereas mindful parenting was significantly and negatively related to support for socially acceptable characteristics in children. Those findings show that parents who value creativity and set up a creative environment are more likely to support children's creativity. Mindful parenting style seems to indirectly support creativity because it is associated with lower respect for socially acceptable characteristics, some of which are at odds with creativity. Findings are discussed in terms of the implications for training programs that enhance awareness of creativity.