The capacity model of social facilitation focuses on the role of types of information processing on performance in front of an audience, rather than the performance on different type of tasks (simple or complex) in front of an audience. The capacity model suggests that for tasks that require automatic information processing, the presence of others does not cause problems because the short-term memory is not required for automatic information processing, so performance quality increases. However, for tasks that require controlled information processing, the presence of others does impede the level of performance because the short-term memory is necessary to both focus attention on the audience, as well as the task at hand.