The left-brain interpreter is a neuropsychological concept developed by the psychologist Michael S. Gazzaniga and the neuroscientist Joseph E. LeDoux.[1][2] It refers to the construction of explanations by the left brain hemisphere in order to make sense of the world by reconciling new information with what was known before.[3] The left-brain interpreter attempts to rationalize, reason and generalize new information it receives in order to relate the past to the present.[4]
Left-brain interpretation is a case of the lateralization of brain function that applies to "explanation generation" rather than other lateralized activities.[5] Although the concept of the left-brain interpreter was initially based on experiments on patients with split-brains, it has since been shown to apply to the everyday behavior of people at large.[5]