To function successfully, we need to be able to select the perceptual information relevant to current task goals, and the responses appropriate given the current task goals.  I am interested in the attentional control processes that we use to flexibly control our perceptions, memories, and actions in our attempt to successfully complete tasks.  Using a combination of behavioural studies and functional magnetic resonance imaging studies, I examine limitations in attentional control, how attentional control processes shape the world that we perceive, and the cortical mechanisms that underlie attentional control.