Andrew McCollough from the University of Oregon will present "Object Representations in Visual Working Memory: Capacity, Control and Contents" in a psychology department colloquium at 3:30 p.m. Tuesday, Nov. 9, in 100 Lindquist Hall. McCollough conducts research on visual working memory using state-of-the-art technology to measure people's brain wave patterns as they perform visual tasks. Working memory capacity is a measure of how many representations can be actively thought about at once and predicts human performance in diverse realms such as driving, flying and air traffic control.