This finding, that people will readily fabricate reasons to explain their own behavior, is called “confabulation.” Confabulation is so frequent in work with split-brain patients and other people suffering brain damage that Gazzaniga refers to the language centers on the left side of the brain as the interpreter module, whose job is to give a running commentary on whatever the self is doing, even though the interpreter module has no access to the real causes or motives of the self’s behavior. For example, if the word “walk” is flashed to the right hemisphere, the patient might stand up and walk
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