In an effort to understand how academic scientists seek information relevant to their research in today’s environment of ubiquitous electronic access, a correlation framework is built and regression analysis is applied to the survey results from 2,063 academic researchers in natural science, engineering, and medical science at five research universities in the United States. Previous work has r...

Infant sleep undergoes dramatic evolution during the first year of life. This process is driven by underlying biological forces but is highly dependent on environmental cues including parental influences. In this review the links between infant sleep and parental behaviors, cognitions, emotions and relationships as well as psychopathology are examined within the context of a transactional model...

Early autism research focused on behavior and cognition. In recent decades, the pace of research has accelerated, and advances in imaging and genetics have allowed the accumulation of biological data. Nevertheless, a coherent picture of the syndrome at either phenotypic or biological level has not emerged. We see two fundamental obstacles to progress in basic understanding of autism. First, the...

The aim of this study was to disentangle pervasive from situational antisocial behaviors using multiple informants, and to investigate their genetic and environmental etiologies in preadolescence and across time. Antisocial behaviors were assessed in 2,232 twins from the Environmental Risk (E-Risk) Longitudinal Twin Study at ages 5 and 12. Pervasive antisocial behaviors were defined as behavior...

Pregnancy as a natural event leads to changes in various aspects of physiology, psychology, and social life. The adoption of a health promoting lifestyle is an important strategy for achieving the desired outcomes of pregnancy and is important on the future health of mother and child. The aim of this study was to assess the various aspects of health promotion behaviors during pregnancy. The dat...

Research interest in the influence of environmental factors on nutrition and physical activity behaviors has surged internationally in recent years. This is evident from a rapidly expanding literature and facilitated by advances in methodological and analytical approaches to assessing multiple levels of influence on health behaviors. However, a number of conceptual challenges complicate researc...

Understanding the sexual risk behaviors of youths living with HIV/AIDS is critical to secondary prevention of HIV. As part of a larger qualitative study of youths living with HIV, in-depth interviews were conducted with 27 African American and Latino, HIV-infected young men who have sex with men, aged 16-24 years, living in New York City. The study explored the role of substance use, the social...

BACKGROUND While physical activity (PA) provides many physical, social, and mental health benefits for older adults, they are the least physically active age group. Ecological models highlight the importance of the physical environment in promoting PA. However, results of previous quantitative research revealed inconsistencies in environmental correlates of older adults' PA that may be explaine...