"Gourmand syndrome": eating passion associated with right anterior lesions.

We present a new benign eating disorder associated with lesions involving parts of the right anterior cerebral hemisphere. This "gourmand" syndrome describes a preoccupation with food and a preference for fine eating. Two exemplary case reports illustrate this new syndrome. Analysis of the clinical and anatomical data of 36 patients who displayed this behavior revealed, in 34, a strong association with lesion location in the right anterior part of the brain involving cortical areas, basal ganglia, or limbic structures. Our finding provides further evidence of a correlation between right hemispheric damage, eating, and other impulse control disorders. We conjecture that the serotonergic system subserves different functions in the left and right hemisphere.