They observed that C57BL/6NJ but not C57BL/6J mice showed rapid and robust escalation in palatable food consumption and identified Cyfip2 (cytoplasmic FMR1-interacting protein 2) as a major genetic factor in preclinical BED; suggesting that could be associated with maladaptive feeding in humans. Here, CYFIP2 is linked to X-linked cone dysfunction syndrome with myopia.