Camilo Khatchikian of the School of Arts & Sciences comments on researching the migration of ticks and the disease that has followed this journey.
School of Arts & Sciences
By Sarah Welsh
Nature versus nurture is an age-old question in biology, centering on whether a given trait is determined by an organism’s genes or by its environment. Most times the answer is “both,” but research at the University of Pennsylvania has found one trait in particular that is not easily described by either.
Lyme disease cases are on the rise, with diagnoses occurring in areas that were historically Lyme-free. Scientists attribute the spread to the fact that populations of blacklegged ticks, which carry the bacteria that causes the disease, now flourish in areas once thought to be devoid of ticks.
The role that attention plays in generating new and useful ideas is controversial among neuroscientists. Some neuroimaging studies have shown that creativity involves more cognitive control, or focused attention. Other studies have shown it involves less.
Investigators at a new University of Pennsylvania research center will focus on key physical principles that underpin cancer’s development and growth.
Jonathan Moreno of the Perelman School of Medicine and the School of Arts & Sciences says, “You don’t have to be a faith-based bioethicist to recognize that there’s some global responsibility for modifying the human germline.”