Physiological and neurochemical mechanisms of executive control

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This study will examine how manipulating brain chemistry influences our ability to inhibit behaviour and monitor our own performance errors. We will determine the response of the brain using the physiological techniques of event-related potentials (ERPs) and functional magnetic resonance imaging (fMRI). The first technique allows us to determine how drugs influence the timing of neural events, while the second technique allows us to determine where in the brain these drugs act.