Over the past two decades, I have been studying the biological and physiological bases of cognition. This work has encompassed a variety of techniques and systems, including electrophysiological recordings from the retina, gene therapy delivery to the cochlea, cloning & characterization of novel genes involved in glucose uptake, and numerous behavioral experiments aimed at elucidating how attention, perception, and executive function interact. My recent work has used neuroimaging techniques (fMRI and EEG) to investigate how the brain controls and monitors fundamental cognitive processes such as visual attention, memory encoding, and cognitive control. Recently, I have also become interested in brain health & fitness and have been designing a program to help seniors maintain good cognitive function. Examples of courses I have taught recently include Cognitive Psychology and Cognitive Neuroscience at University of California, Davis, and Physiological Psychology and Cognition & Affective Processes at Argosy University, San Francisco.