A pilot study was conducted in anticipation of implementation of a larger project to assess human immunodeficiency virus (HIV) risk behaviors among older African Americans. A cross-sectional methodology was employed, including 33 African Americans aged more than 50 years in the metropolitan Washington, DC, area. The average age of the participants was 66 years old, with an age range from 51 to 86 years. Data were collected utilizing previously validated instruments that were administered using an audio computer-assisted survey instrument. There was relatively high knowledge regarding HIV, with female participants scoring significantly higher compared to male participants (p=.003). Another specific finding of the preliminary study was the association between higher levels of spirituality and lower levels of HIV sexual risk behaviors (Spearman's correlation=-0.369, p=.035). Results of this pilot study suggest that older African American females may be more knowledgeable regarding HIV than older African American males. This may suggest that educational and behavioral interventions developedfor this group may need to be structured based upon the targeted gender of the audience. The association between increased spirituality and decreased risk behaviors may suggest that spiritually-based interventions may provide some benefit regarding reduction of HIV risk behaviors in this population. However, the small sample size in this study warrants caution in the conclusions and highlights the need for further research in this population.
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http://dx.doi.org/10.1016/s0027-9684(15)30291-1 | DOI Listing |
Mol Psychiatry
January 2025
Department of Psychiatry, University of Oxford, Oxford, UK.
Cognitive and neural mechanisms underlying bipolar disorder (BD) and its treatment are still poorly understood. Here we examined the role of adaptations in risk-taking using a reward-guided decision-making task. We recruited volunteers with high (n = 40) scores on the Mood Disorder Questionnaire, MDQ, suspected of high risk for bipolar disorder and those with low-risk scores (n = 37).
View Article and Find Full Text PDFSci Rep
January 2025
School of Electronics and Information Engineering, University of Science and Technology Liaoning, Anshan, 114051, China.
Collective behavior in biological systems emerges from local interactions among individuals, enabling groups to adapt to dynamic environments. Traditional modeling approaches, such as bottom-up and top-down models, have limitations in accurately representing these complex interactions. We propose a novel potential field mechanism that integrates local interactions and environmental influences to explain collective behavior.
View Article and Find Full Text PDFJMIR Res Protoc
January 2025
Institute on Digital Health and Innovation, College of Nursing, Florida State University, Tallahassee, FL, United States.
Background: In Alabama, the undiagnosed HIV rate is over 20%; youth and young adults, particularly those who identify as sexual and gender minority individuals, are at elevated risk for HIV acquisition and are the only demographic group in the United States with rising rates of new infections. Adolescence is a period marked by exploration, risk taking, and learning, making comprehensive sexual health education a high-priority prevention strategy for HIV and sexually transmitted infections. However, in Alabama, school-based sexual health and HIV prevention education is strictly regulated and does not address the unique needs of sexual and gender minority teenagers.
View Article and Find Full Text PDFBehav Brain Res
January 2025
Laboratorio de Neurociencias, Facultad de Psicología, Universidad de Colima, Colima, Mexico 28040. Electronic address:
Tactile information from the whiskers (vibrissae) travels through the somatosensory cortex to the entorhinal cortex and the hippocampus, influencing development and psychological well-being. The lack of whiskers affects cognitive functions, spatial memory, neuronal firing, spatial mapping, and neurogenesis in the dorsal hippocampus. Recent studies underline the importance of tactile experiences in emotional health, noting that while tactile stimuli modulate the dorsal hippocampus, the effects of tactile deprivation on anxiety-like behaviors and neural activity in regions like the ventral hippocampus and amygdala are less understood.
View Article and Find Full Text PDFAccid Anal Prev
January 2025
School of Transportation, Southeast University, Nanjing, Jiangsu Province 211189, PR China; Institute on Internet of Mobility, Southeast University and University of Wisconsin-Madison, Southeast University, Nanjing, Jiangsu Province 211189, PR China.
Traffic signals, while reducing conflicts within intersections, often lead to stop-and-go behaviors in approaching vehicles, negatively impacting traffic flow in terms of safety, efficiency, and fuel consumption. Aimed at minimizing the traffic oscillations caused by traffic signals through Connected and Autonomous Vehicles (CAVs) and meeting real-time operational needs, this paper proposes a Risk-Based Adaptive Cruise Control (RACC). RACC designs the constraints of approaching a signalized intersection as expected risks, enabling compliance with all constraints while being adaptable to basic road scenarios.
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