Left-brain interpreter

[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] The concept was first introduced by Michael Gazzaniga while he performed research on split-brain patients during the early 1970s with Roger Sperry at the California Institute of Technology.

[8] In performing the initial experiments, Gazzaniga and his colleagues observed what happened when the left and right hemispheres in the split brains of patients were unable to communicate with each other.

These experiments have included the projection of specific images, ranging from facial expressions to carefully constructed word combinations, and functional magnetic resonance (fMRI) tests.

[4] 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] In reconciling the past and the present, the left-brain interpreter may confer a sense of comfort to a person, by providing a feeling of consistency and continuity in the world.

[13] The checks and balances provided by the right brain hemisphere may thus avoid scenarios that eventually lead to delusion via the continued construction of biased explanations.

The left cerebral hemisphere of the brain.