At first glance, transparency enhances assimilation

We investigated the role of transparency, perceptual grouping, and presentation time on perceived lightness. Both transparency and perceptual grouping have been found to result in assimilation effects, but only for ambiguous stimulus displays and with specific attentional instructions. By varying the presentation times of displays with two partly overlapping transparent E-shaped objects, we measured assimilation in unambiguous stimulus displays and without specific attentional instructions. The task was to judge which of two simultaneously presented E-shaped objects was darker. With unrestrained presentation times, if a transparency interpretation was possible, assimilation was not found. Inhibiting a transparency interpretation by occluding the local junctions between the two E-shaped objects, did lead to assimilation. With short presentation times, if a transparency interpretation was possible, assimilation was now also found. Thus, we conclude that, although transparency appears to enhance assimilation, with unambiguous stimulus displays and without specific attentional instructions, perceptual grouping is more important for assimilation to occur.     

Asymptotic reinforced responding as a function of the operant level of the instrumental response

The relationship between operant level (base rate) and asymptotic reinforced instrumental responding was investigated in several contingencies in which licking was contingent upon running, under different FR schedules. For Group I the relationship was examined by selecting rats who naturally differed in their running base rates and for which the licking base rates were equivalent. For Group II the relationship was examined by selecting rats with equivalent running and licking base rates, but whose running rates were eventually made to differ by manipulating wheel-torque requirements. Asymptotic reinforced instrumental responding was found to be linearly related to pre-contingent running base rates, for all FR schedules, and independent of the procedures used to obtain differing running base rates. The results support Premack's contention that asymptotic reinforced instrumental responding is a joint function of the reinforcing response and the operant level of the instrumental response.     

The Impact of Home Ownership on Life Satisfaction in Urban China: A Propensity Score Matching Analysis

China has implemented a series of socioeconomic reforms since 1978. One of the reforms allows urban residents to purchase their own houses rather than renting houses from state institutions which has resulted in a rapid increase in home ownership. This paper estimates the impact of home ownership on life satisfaction in urban China on the basis of the 2010 wave of the China General Social Survey. Special attention is paid to the methodological problem of confoundedness between the determinants of home ownership and life satisfaction. Propensity score matching (PSM) is applied to control it. The results show that PSM reduces upward estimation bias caused by confoundedness and that it is more appropriate to control confoundedness than ordered probit regression. The estimates furthermore indicate that home ownership has a significant positive impact on life satisfaction of medium- and high income urban residents. For low income urban residents, the impact is also positive, though insignificant. The outcomes connect to the objectives of national development policy and thus have several important policy implications. First, the central and local governments, especially in provinces where it is still low, may want to continue stimulating home ownership as it enhances life satisfaction. Secondly, specific programs may be designed to make home ownership financially affordable for low income groups. Thirdly, local governments may want to initiate or intensify urban (renewal) programs to improve poor public facilities including public transportation, green space and sports accommodations in the immediate vicinity of depressing low income neighborhoods.     

Differences between right versus left lateral body tilt in its effect on the visual and tactual perception of verticality

Summary Ninety six Ss were subjected to lateral body tilt, ranging from 10° to 90° to the right and to the left, and indicated the visual vertical (by means of a luminescent rod) and the tactual vertical (by means of a metal bar) in a darkroom. There were significant differences for deviations of apparent from true vertical in both series between body tilt to the right versus to the left. With tilts to the right, apparent vertical deviated more opposite the direction of tilt, the E-phenomenon, or less in the direction of tilt, the A-phenomenon, as compared with tilts to the left.This study was supported, in part, by a Public Health Service Research Grant, MH 00348, from the National Institute of Mental Health, while the author was a NATO research fellow at Clark University, Worcester, MA; and in part by a Federal Grant, MR HD 06276, to the Children's Hospital Medical Center, while the author was a research fellow in child psychiatry at Harvard University, School of Medicine, Boston, MA.     

Assessing the Organizational Climate for Translational Research with a New Survey Tool

Science and Engineering Ethics - Promoting translational research as a means to overcoming chasms in the translation of knowledge through successive fields of research from basic science to public...     

Influence of generalized complexity of a musical event on subjective time estimation

This study examined the variations in the apparent duration of music events produced by differences in their generalized compositional complexity. Stimuli were the first 90 sec. of Gustav Mahler's 3rd Movement of Symphony No. 2 (low complexity) and the first 90 sec. of Luciano Bério's 3rd Movement of Symphony for Eight Voices and Orchestra (high complexity). Bério's symphony is another "reading" of Mahler's. On the compositional base of Mahler's symphony, Bério explored complexity in several musical elements--temporal (i.e., rhythm), nontemporal (i.e., pitch, orchestral and vocal timbre, texture, density), and verbal (i.e., text, words, phonemes). These two somewhat differently filled durations were reproduced by 10 women and 6 men with a stopwatch under the prospective paradigm. Analysis showed that the more generalized complexity of the musical event was followed by greater subjective estimation of the duration of this 90-sec. symphonic excerpt.     

Training Young Adult Peers in a Mobile Motivational Interviewing‐Based Mentoring Approach to Upstream HIV Prevention

Mentoring relationships are characterized by a sustained, high quality, and skill‐building relationship between a protégé and mentor (Handbook of Youth Mentoring, Los Angeles, SAGE, 2014). Within prevention science, youth mentoring programs emphasize creating a specific context that benefits a young person. Program‐sponsored relationships between youth and adults allow for creating a mentor–mentee partnership, but do not require the establishment of a strong bond in order to deliver prevention‐focused activities and experiences (Handbook of Youth Mentoring, Los Angeles, SAGE, 2014). Motivational Interviewing (MI) is a counseling style used widely to promote health behavior change and in prevention interventions. As part of an upstream approach to HIV prevention, we combined mentoring and MI by training peer mentors to use MI skills in their interactions as part of a large RCT of a mobile life skills intervention for adolescent men who have sex with men (AMSM). Our training model developed for training peer mentors in MI skills resulted in peers reaching and exceeding established MI fidelity thresholds (e.g., mean percentage of complex reflections = 80%, mean reflection to question ratio = 2.2:1). We offer reflections on lessons learned and future directions for those researchers and practitioners who may benefit from adapting this blended approach for mentoring AMSM.     

Thinking About the Future as a Way to Succeed in the Present: A Longitudinal Study of Future Orientation and Violent Behaviors Among African American Youth

Previous research has linked higher levels of hopelessness about one's future to violent behavior during adolescence; however, little is known about this relationship over time for adolescents. Using growth curve modeling, we tested the association between future orientation and violent behavior across the high school years of adolescence in a sample of African American youth (n = 681). Variation based on demographic characteristics (i.e., sex, SES, previous violence) was explored. At baseline, differences in violent behavior varied by demographic characteristics. Overall, violent behavior decreased with age. Higher levels of future orientation were associated with greater decreases in violent behavior over time. Demographic characteristics were not associated with change in violent behavior overtime. Our findings suggest that future orientation can act as a promotive factor for at risk African American youth. Interventions that help support the development of future goals and aspirations could play a vital role in violence prevention efforts.