Humans have a unique capacity for higher order cognition such as planning and multitasking. These abilities are collectively referred to as executive functions. This study investigates cognitive set-shifting, a type of executive function that involves shifting from one task to another. Advances in neuroimaging have allowed for the structural integrity of specific frontal lobe subregions to be probed with greater resolution. One such measure is the intensity contrast between cortical gray and white matter, with greater contrast indicating better development.

Seasonal floodplain wetlands occur throughout the Piedmont Region of South Carolina, providing a plethora of ecosystem services. As a result of extensive soil erosion during the agricultural period from mid-1700s until mid-1900s, Piedmont floodplains have accreted significantly, altering their natural flood regime. The purpose of this study was to better understand the impacts of land use change and seasonality on the hydrology of two adjacent, seasonal floodplain wetlands.