Conventional wisdom holds that adolescents are susceptible to drug use and other risk-taking behavior. However, a one-size-fits-all approach to curbing these behaviors likely will be unsuccessful, according to research to be presented Monday, May 3 at the Pediatric Academic Societies (PAS) annual meeting in Vancouver, British Columbia, Canada.
Studies have suggested that increased risk-taking in adolescence may be due to late maturation of brain functions known as executive cognitive functions, which control impulsivity. One of these functions, called working memory, does not fully mature until the third decade of life.
A collaborative investigative team, led by Daniel Romer, PhD, from the Annenberg Public Policy Center, and Hallam Hurt, MD, from the Children's Hospital of Philadelphia, aimed to track the development of risk-taking behavior and executive cognitive functions in 387 youths of mixed race, ethnicity and socioeconomic status in the Philadelphia area. They assessed working memory, two types of impulsivity (sensation seeking and acting without thinking) and risk behaviors such as fighting, gambling and alcohol use over four years starting when the youths were 10 to 12 years of age.
As expected, results showed that youths who scored high on measures of impulsivity engaged in risky behaviors at a younger age. However, not all of these youths had weaknesses in working memory. Those with stronger working memory ability exhibited more sensation-seeking behavior, while those with poor working memory scored higher on measures of acting without thinking.
The results contradict the assumption that all adolescent risk-taking is simply the result of weak executive cognitive function, Dr. Romer explained. The results also indicate that different types of interventions will be needed.
"Our findings clearly suggest that explanations for why adolescents take risks are not simple," Dr. Romer said. "Many adolescents have the capacity to control their risk-taking, and we will need to find ways for them to channel sensation-seeking drives toward safer activities."
To see the abstract, go to http://www.abstracts2view.com/pas/view.php?nu=PAS10L1_1772&terms
The Pediatric Academic Societies (PAS) are four individual pediatric organizations who co-sponsor the PAS Annual Meeting – the American Pediatric Society, the Society for Pediatric Research, the Academic Pediatric Association, and the American Academy of Pediatrics. Members of these organizations are pediatricians and other health care providers who are practicing in the research, academic and clinical arenas. The four sponsoring organizations are leaders in the advancement of pediatric research and child advocacy within pediatrics, and all share a common mission of fostering the health and well being of children worldwide. For more information, visit www.pas-meeting.org. Follow news of the PAS meeting on Twitter at http://twitter.com/PedAcadSoc.
Susan Martin | EurekAlert!
Study relating to materials testing Detecting damages in non-magnetic steel through magnetism
23.07.2018 | Technische Universität Kaiserslautern
Innovative genetic tests for children with developmental disorders and epilepsy
11.07.2018 | Christian-Albrechts-Universität zu Kiel
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur
What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...
The quality of materials often depends on the manufacturing process. In casting and welding, for example, the rate at which melts solidify and the resulting microstructure of the alloy is important. With metallic foams as well, it depends on exactly how the foaming process takes place. To understand these processes fully requires fast sensing capability. The fastest 3D tomographic images to date have now been achieved at the BESSY II X-ray source operated by the Helmholtz-Zentrum Berlin.
Dr. Francisco Garcia-Moreno and his team have designed a turntable that rotates ultra-stably about its axis at a constant rotational speed. This really depends...
08.08.2018 | Event News
27.07.2018 | Event News
25.07.2018 | Event News
14.08.2018 | Information Technology
14.08.2018 | Life Sciences
14.08.2018 | Life Sciences