Chemotherapy has been linked to cognitive impairments among breast cancer patients, especially in the domains of executive function (planning and problem solving), attention, learning, and information processing. The etiology of these chemotherapy-associated impairments remains unknown, although recent neuroimaging studies suggest that disruption of white matter integrity may play a role. With continued use of chemotherapy in breast cancer patients, this study's novel use of functional neuroimaging will be significant to better inform practitioners and patients of potential consequences to anticipate and serve as a starting point in the development of therapeutic interventions.