ABSTRACT
This chapter demonstrates control processes that are in charge of task setting but are nonetheless involuntary and inflexible. Control processes can treat the two tasks as separate only when the second task does not require a speeded response. The chapter shows that when people perform two tasks, they can perform them simultaneously and without costs when the two tasks are synchronized. It discusses one more ingredient by using a dual task Simon paradigm. The use of two tasks in the Simon paradigm allows us to manipulate the two tasks independently. The chapter shows that even when there is an Stimulus Onset Asynchrony (SOA) between the two tasks, there is still a Simon effect between the two tasks. A well-known phenomenon that demonstrates the complex relation between perception and action is the Simon effect. The chapter explores exogenous control processes that are involved in conflict resolution of interference created by a Simon-like task.
