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211.
N I Durlach L A Delhorne A Wong W Y Ko W M Rabinowitz J Hollerbach 《Perception & psychophysics》1989,46(1):29-38
Experiments were conducted on length resolution for objects held between the thumb and fore-finger. The just noticeable difference in length measured in discrimination experiments is roughly 1 mm for reference lengths of 10 to 20 mm. It increases monotonically with reference length but violates Weber's law. Also, it decreases when the subject is permitted to maintain a constant finger span between trials; however, it tends to increase when the nondominant hand is used. As would be expected from studies of other stimulus dimensions in other sense modalities, resolution is considerably poorer in identification experiments than in discrimination experiments. For stimulus sets that cover a broad range (90 mm), the total information transfer is roughly 2 bits; for those that cover a relatively small range (18 mm), it is roughly 1 bit. The data are analyzed and interpreted using analysis techniques and models that have been used previously in studies of audition (e.g., Durlach & Braida, 1969). 相似文献
212.
Bernice Y. L. Wong 《Journal of abnormal child psychology》1985,13(3):425-441
In this paper, conceptual and methodological issues within three phases of CBM interventions in academic skills are analyzed: Acquisition, evaluation, and generalization. The goal of such analysis is threefold: To enhance understanding of observed problems, clarify specific conceptual issues, and highlight areas that need more conceptual clarification and more research. 相似文献
213.
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215.
Sheryl Kataoka Audra Langley Bradley Stein Lisa Jaycox Lily Zhang Norma Sanchez Marleen Wong 《Journal of child and family studies》2009,18(3):334-341
Although Latinos have been a rapidly growing population in the US, little is known about how mental health symptoms may present
in Latino children especially in the context of those living in poverty and exposed to violence. We explored the level of
violence exposure and trauma symptoms in Latino youth and the relationship of these factors with English language fluency.
During 2000–2002, 1,601, Latino students from seven middle schools participated in a school-based screening to identify students
with exposure to community violence and symptoms of Posttraumatic Stress Disorder (PTSD). The students completed a self-report
instrument, in either Spanish or English, that combined a modified version of the Life Events Scale and the Child PTSD Symptom
Scale (CPSS). Bivariate analyses and multivariate regression models showed that youth with higher English language fluency
reported greater violence exposure and PTSD symptoms than those with lower fluency. No difference was found in functioning
by English language fluency. English language fluency appears to be related to violence exposure and PTSD symptoms in these
Latino youth. We discuss the importance of school-based programs especially designed to serve Latino students of varying English
language fluency. 相似文献
216.
Carolyn F. Wong Sheree M. Schrager Chih-Ping Chou George Weiss Michele D. Kipke 《American journal of community psychology》2013,51(3-4):439-450
Emerging adulthood is a transitional time often marked by instability in many areas of life, including residential status, work, school, and romantic relationships. The purpose of this study is to examine transitions in HIV-risk related behaviors among a cohort of ethnically-diverse young men who have sex with men (YMSM) and to reveal how changes in developmental contexts during emerging adulthood might be associated with these behavioral changes. Hidden Markov models were used to examine movement across different stages of behavioral risk-taking over time. Semi-annual surveys were administered across 2 years; analyses included those with at least three of the five waves of data. Results indicated substantial movement at the individual-level transitions. Additionally, high variability in sexual risk, alcohol misuse, and illicit drug-risk behaviors was predicted by age, ethnicity, and correlates of emerging adulthood, such as residential status, work, post-secondary school enrollment, and primary-relationship status. Findings provide evidence of great change in risky behaviors among YMSM during this pivotal time, particularly among those who actively experiment in varying levels of risk-taking. In order to prevent experimental behaviors from evolving into more serious risk, interventions must consider ways to assist YMSM to adjust to life changes brought on by emerging adulthood. 相似文献
217.
Crowding occurs when the perception of a suprathreshold target is impaired by nearby distractors, reflecting a fundamental limitation on visual spatial resolution. It is likely that crowding limits music reading, as each musical note is crowded by adjacent notes and by the five-line staff, similar to word reading, in which letter recognition is reduced by crowding from adjacent letters. Here, we tested the hypothesis that, with extensive experience, music-reading experts have acquired visual skills such that they experience a smaller crowding effect, resulting in higher music-reading fluency. Experts experienced a smaller crowding effect than did novices, but only for musical stimuli, not for control stimuli (Landolt Cs). The magnitude of the crowding effect for musical stimuli could be predicted by individual fluency in music reading. Our results highlight the role of experience in crowding: Visual spatial resolution can be improved specifically for objects associated with perceptual expertise. Music-reading rates are likely limited by crowding, and our results are consistent with the idea that experience alleviates these limitations. 相似文献
218.
In the rubber hand illusion (RHI) one’s hand is hidden, and a fake hand is visible. We explored the situation in which visual information was available indirectly in a mirror. In the mirror condition, compared to the standard condition (fake hand visible directly), we found no reduction of the RHI following synchronised stimulation, as measured by crossmanual pointing and by a questionnaire. We replicated the finding with a smaller mirror that prevented visibility of the face. The RHI was eliminated when a wooden block replaced the fake hand, or when the hand belonged to another person or mannequin. We conclude that awareness of the reflection is the critical variable, despite the distant visual localisation of the hand in a mirror and the third-person perspective. Stimuli seen in a mirror activate the same response as stimuli seen in peripersonal space, through knowledge that they are near one’s body. 相似文献
219.
Jane M. Ussher Michelle Rhyder-Obid Janette Perz Merelyn Rae Tim W. K. Wong Paul Newman 《Sexuality & culture》2012,16(4):467-485
It is widely recognised that sexual and reproductive health services are underutilised by culturally and linguistically diverse migrant communities, leading to risk of poor health outcomes. This study examined the constructions and experiences of reproductive and sexual health, and associated services, in Assyrian and Karen women who had arrived in Australia as refugees. Forty two women, across a range of age groups and marital status, participated in five focus groups, with thematic analysis and positioning theory used to analyse the results. Two major themes were identified. The first, the ??Premarital Chastity Imperative?? centres on the cultural prohibition of coital hetero-sex before marriage, and taboos associated with same-sex relationships. This has implications for unmarried women??s access to sexual health services, such as contraception, cervical screening, and abortion; prohibition of sex education and communication about sex; and lack of recognition of non-heterosexual identities. The second theme, ??Marital Sex and Reproductive Imperative??, positioned coital sex and motherhood as mandatory within marriage, and was associated with women??s inability to refuse marital sex, limited knowledge about contraception and sexual pain, acceptance of fertility services, as well as lack of recognition of post-natal depression. It is concluded that health care workers need to be aware of cultural constructions of sex and sexuality, as well as the construction of gendered roles within heterosexual relationships, when designing and offering sexual health services to non English speaking or migrant communities. 相似文献
220.