Dissociations, and especially double dissociations, came to be seen as powerful tools for discovering functional modules of the cognitive architecture: “The crucial theoretical point is that the double dissociation does demonstrate that the two tasks make different processing demands on two or more functionally ...

What does a double dissociation demonstrate?

a research process for demonstrating the action of two separable psychological or biological systems, such as differentiating between types of memory or the function of brain areas. One experimental variable is found to affect one of the systems, whereas a second variable affects the other.

What is the purpose of double dissociation?

By establishing Double Dissociation, scientists are able to determine which mental processes are specialized to certain areas of the brain.